Google Interview Puzzle | Poisonous Milk Bottle | Simple yet Tricky

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You are trapped in a room with no food.
After 2 days, You are given 4 bottles of milk.... out of which one bottle is poisonous.
For testing, there is a rat to which you can feed samples of milk and try to find out which bottle is poisonous.
But the challenge is that the poison takes effect exactly after 10 hours from feeding.
And you have only 24 hours in your hand....
whithin which you must consume 3 bottles of milk to satisfy your hunger... else you will die.
PUZZLE:
What strategy would ensure that you drink 3 bottles of milk within 24 hours.
Note : You have a timer with you.
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[@ilikechoco_milk6602]

Just make sure you don't drink the poison milk last so that you can remove the poison effect by drinking milk

[@praneethsagar5004]

Minecraft haa

[@69Turnips]

Google: stay exactly where you are

[@asharahmed1966]

Now thats someone who knows his bussiness

[@IAm_DavidB]

BIIG BRAAIIINNN

[@gstark5485]

@@IAm_DavidB yeaaa it's big brain time

[@elliott8596]

I don't think this is anywhere near the difficulty of a google interview question.

[@scottorban7203]

Also what job would you be applying for where they would ask you to solve a riddle? Like I imagine programmers get asked programming questions and engineers get asked engineering questions, etc

[@oneloveboob]

It goes something like this "Are you willing to sell your soul to Satan corporate?"

[@scs44444]

@@scottorban7203 literally every single software engineering job interview will give you some kind of logic question. software engineering is like 1% actually coding lmao

[@scottorban7203]

@@scs44444 I dont believe you

[@scs44444]

@@scottorban7203 aight cool but anyone who works in the industry will tell you the same thing. Programming is all about solving puzzles, coding is relatively easy. Especially with the resources we have available on the internet. Any idiot can write some code, but a great engineer is someone who can create the solutions, not just copy them.

[@314159265352]

Interview question for a Job in PETA would be like "You have 4 bottles out of which 3 are poisoned and you have to feed a cute rat. What would you do?"

[@sidhantpatra1652]

Imagine you die after drinking the first Bootle and your cat die after drinking the second bottle

[@rishutripathi9596]

😀😀

[@dbeekman9738]

Cut off a finger, give it to the rat. Then drink all the liquid because I work for PETA.

[@DavidCameron-fj5yb]

I will check those bottles feeding those employees

[@Mr.Not_Sure]

The answer is simple. Just GOOGLE which bottle is poisonous and drink another three!

[@stevieboi3319]

Google interviewer: FUCK, HE IS GOOD

[@sumansamai848]

Underated comment

[@Stackoffish]

google- sorry we cannot reveal answer as it is interview question

[@adamlee4218]

The answer is I die regardless because I'm lactose intolerant

[@annarose5386]

Same

[@todorokiyosukedesu]

It's quite a shame.

[@maou5241]

yep

[@dragonseyeangie]

rats are too

[@rickwebb5259]

You could drink the rat

[@kookyflukes9749]

Just drink all the bottles of milk and save yourself from a career at Google

[@kookyflukes9749]

@@helmydewa that would be easier, but you overlook the fact that you are in Google headquarters doing an interview. There is no escape other than drinking all the milk.

[@Bluewhhale]

Master stroke dude

[@DonVigaDeFierro]

@@helmydewa "BING"? That's a weird way of spelling DuckDuckGo...

[@joshb6993]

There's only soy at Google

[@kookyflukes9749]

@@joshb6993 yuk. Typical Google. Up on fashion down on substance 😀

[@theresaegger6684]

I would drink 3 and if i realize that one of them is poisonous i would drink the last one because minecraft taught us that milk heals poison

[@sonicmaths8285]

@Reliable Gutters absolutely 😂

[@milanfanas]

I was going to write the same

[@agentstepheng289]

Love the solution. Just to account for any inconsistent effects, I would wait 2 or 3 hours between feedings

[@joncleek5406]

Looks like optimized is actually 4hr 40min. See my post for explanation :-)

[@joshalbright251]

I was thinking the same thing

[@l.w.paradis2108]

Me, too. A one-hour interval is rather arbitrary.

[@SeanPat1001]

I would wait 3.5 hours. Saying that the poison would take affect in 10 hours is probably an average with some variation. Using an interval of 3.5 hours would reduce the risk due to the variation in the time until the poison takes effect. The third bottle would be administered at 10.5 hours, giving me a safety margin of 3.5 hours until 24 hours for the third bottle.

[@GokulRG]

Lol. you're just being asked to think logically here... No poison in the world is like an ON-OFF switch that'll exactly kill you in 10 hours while remaining without any symptoms till 9 hr 59 min. You can also simply say I'll just feed a sample and look at symptoms after a few hours.. But this is not the real world, what's being tested is your logical thinking. 1 hr isn't arbitrary, that's the smallest unit of time here that can be measured.

[@colinmclaughlin9772]

It says “what strategy would ensure that you drink 3 bottles of milk within 24 hours” ez drink three random ones, it never says you have to live

[@parkerlee8071]

I mean, you're not wrong...

[@9nikolai]

I don't think anyone would hire a dead man, but I might be wrong.

[@gumbo64]

Even if you do, you don't die until 10 hours after 😎

[@Un-CommonSensei]

It says 1 is poison.. 3 of them are milk.. 4 bottles total.... meaning one bottle is not of pure milk so it can not be a "bottle of milk" so if you drank 3 random and died you failed to drink 3 bottles of milk but instead 2 bottles of milk and a bottle of poisonous milk.... sooo.. your logic fails you! Lol

[@Sg0224]

Yeah they want ghosts to code for them.

[@jasoncheah9218]

Why risk poisoning yourself from drinking milk, when u can eat the rat to cure ur hunger?

[@aggrostasisstar5310]

Most children watching this don't understand the life sciences enough to make a decent choice you are one of them that rat might sate your hunger for a few hours IF COOKED while you'll still be in pain OR DEAD if raw furthermore hunger is not part of the equation

[@foxleo6729]

The question is sculpted to create comfortable imagery in what is the wrong direction (milk, rat). These are distractions in the question meant to allure you away from logic. It's a nice question but it's presented in an overly pacified manner for me. The answer is too obvious because of the lack of constants. There is only one constant, the amount of time it takes for the poison to take effect. Then one control, the amount of time you have to hypothetically use these resources to solve the problem. What is the most efficient way to recognize this, statement. This is the underlying purpose of logical deduction in complex ways but only two ways. This question is structured in an abductive nature but asks the reader to solve it using any logic they wish. All in all, its a nice entry level critical thinking problem.

[@siegebrosgaming4258]

brainlessbastardbb drink the rat blood😂

[@kinknow7261]

@@foxleo6729 the real question why are you desparate enough to drink milk if ur hungry dont be hungry

[@foxleo6729]

@@kinknow7261 That is a rather simple and quick way to avoid from the problem, permanently. But not solve what's been asked.

[@grudley]

The answer was so simple I thought I misunderstood the puzzle when I found it. But nope, that's the answer. Disappointing.

[@gregorytancre5825]

Had the same feeling. I was expecting him to come with a crazy solution, when he said, you need to think out of the box...

[@jeanbarque9918]

Same for me

[@not2tired]

Yet practical. It was an interview question, and maybe they want candidates who don't overthink it.

[@poorwhitepeoplearefailures2396]

Right? This seems like a question made to try and emulate a FAANG or MBB interview

[@ILikeWafflz]

Me: "Seems like you'd test the bottles an hour apart and note the time" Everyone in the comments: "Mix two bottles, and if the rat dies, you know it's one of those, so you can take your rat and bring it back from the dead and test again with it"

[@chillwithcode2987]

If rat dies once how can u make it alive

[@michaelroditis1952]

@@chillwithcode2987 r/ woosh

[@pavanyeluri7557]

With timer,he could have given less time between two takings

[@KevinBui1111]

Mix two bottles, if the rat dies, just test one of those with another rat.

[@dileepreddypeddireddygari8877]

@@KevinBui1111 if there are more than one rat why not feed 4 rats at once 😂

[@mathansahayath4286]

rat: am i a joke to you??

[@nikhatrubeena6738]

Lol😆😆😆

[@Omkar1mir21_]

Nice one

[@subhankarpramanik2224]

😂😂😂

[@sheldonspl2712]

Gives the rat the 4 th bottle anyways

[@nadunwijesinghe965]

@@sheldonspl2712 dead😂🤣😂... Literally....😂😂

[@Gr3nadgr3gory]

FOOLS! I've spent the past five years building up an immunity to iocane powder.

[@madisonprueter4120]

nice

[@bighermstick7994]

INCONCEIVABLE

[@unclecreepy7025]

This needs more likes.

[@christianr.b.6074]

Yeesssss

[@RealBlueony]

Gr3nadgr3gory AHH HAHHH AHHH HAHHH AHHH HAA- *plops over dead on ground*

[@12000gp]

Great idea mathematically, in reality though if that rat dies in 10.5 hours you’re screwed

[@pratham_4355]

Let give 1st bottle at 0 hr 2nd at 5 3rd at 10 So you will get results in 20 hrs

[@siriusczech]

@@pratham_4355 I would go with 4 hours difference to be able to test all bottles - look at my comment above with explanation

[@Mr4hitch]

We dont had clock, why this answer is good?

[@siriusczech]

@@Mr4hitch we had, watch it again

[@jfast8256]

yeah, my timing was every 3 hours before I watched. Then I watched it and though... ohh dur, you could wait just 1 hour instead of 3. But then reading this, yeah 3 hours ensures better estimation guesses

[@xStayCurious]

The only tricky thing about the problem is your brain immediately wants to think about how poison might actually take effect realistically, which could vary in time, so we feel as though we need to omit the given "fact" that it "ONLY takes effect AT 10 hours."

[@mogu1656]

Drink all the milk at night so the poison is asleep

[@RubyPiec]

Underrated joke

[@user-ys7vg2xh2k]

*Genius.*

[@jasonjuneau]

You deserve more likes!

[@sinfinite4]

What if we use 100% of our brains

[@jasonjuneau]

@@sinfinite4 We do use 100%, just not all at the same time. That's why whenever I have a seizure I can do things I never could regularly. I almost broke my wife's hand from squeezing it too hard during a seizure.

[@demerzel3798]

With a color like that, they’re all poisoned.

[@primeprocrastinator5175]

No, there badham milk :)

[@farklefuster6876]

Remember, hippo milk is pink

[@jorgerosas2516]

It's pineapple milk

[@kaisarsihaloho975]

Its a pee milkshake

[@kaisarsihaloho975]

Its a pee milkshake

[@MycoCane]

1) I agree, and appreciate, that the optimized solution is one where the rat has a 25% of living too! 2) That being said...rat metabolisms are different than ours...if this was IRL, I would probably leave 2 hours between each feeding, and feed it all four bottles, just in case. Still only takes 16 hours. 3) I'm so happy I (eventually) got this one, and I'm going to share it with my super-smart 6th graders to see if they can crack it too! :)

[@poorwhitepeoplearefailures2396]

This question was amazingly easy when he mentioned it’d take exactly 10 hours… you could literally just feed the rat samples 10 minutes apart if you kept track of the time

[@Kurikost_]

same for me..i found this so easy, that i thought i have a mitstake in my solution.

[@joncleek5406]

Agreed. It becomes much more interesting when you try to optimize for potential margin of error on the 10 hr poison and on you dying at exactly 24 hrs

[@CookTheCrook15]

If I just poured the milk out and ate the bottles do you think I’d get the job

[@raymondamantius]

LOL

[@Sheen1049]

Skip that and eat the rat

[@raymondamantius]

@@Sheen1049 ;-;

[@holytiramisu]

Job? No Hospital billing? If you're very lucky

[@trainingdruid7962]

I'd hire you. That's some high level confidence at least.

[@MashZ]

I instantly figured the answer. Wheres my job google??

[@soumyapalai5752]

Mine 2

[@ultralegends8613]

Me too

[@caylah2899]

Same

[@ydurve]

Same Here. I guess riddle was for kids. I am at wrong video.

[@XploricPro]

Very easy

[@masalias22]

With that solution, at the end you wouldn't have three complete bottles, as the rat would have drunk a little bit. So you'd have less than three bottles.

[@Stackoffish]

google- correct! that was the trick! you are hired

[@scottbradley2494]

If the rat has had some milk, you haven’t got three good bottles to save yourself

[@djrodgers6066]

This was the easiest riddle I’ve heard seen on KZbin 😂😭

[@f2vedan]

I thought this riddle was weak as well

[@jasonmatiteeb9225]

DJ Rodgers idk how people thought this was hard. You could literally do them like 10 minutes apart which was my idea and save yourself the like 2 and a half hours

[@KizaWittaker]

So many geniuses in the comments 😂

[@aezzil3536]

Google: you want a scholarship nigga?

[@benjaminshiffman8734]

Same this was wayyyy too easy

[@nomore25]

There is a label underneath the bottle saying poisonous. Wtf google

[@Novasky2007]

Alexa, which bottle is poisonous? - you start monday!

[@MrPeak95]

I thought of this: - Pour 2 bottles of milk in the first hour (since the poison takes effect after 10 hours). It'll have 50% chance that the poisoned bottle is there. The outcome: 1. If the rat dies when the time comes(0-10h), that means one of the bottle is the poisoned one. -Do the same thing, but take one bottle since you have 14h left. -In the next 4 hours you have time to drink other bottles :D 2. If the rat doesn't die, do the same thing for the bottles you didn't choose. but pour only one bottle.

[@8001010]

Video say that combination is not valid , but from problem question is valid.

[@grahck4391]

One addendum I would make to the solution. If rat is alive after hour 10, begin drinking the first bottle then. Then repeat at the other hour intervals, provided the rat survives. If he dies, just skip that bottle and drink the others. This further optimizes the solution because the last part of the riddle is to drink three bottles of milk. Also, if someone is hungry, there's no way anyone would simply let a perfectly fine bottle of milk just sit there, especially if he knows it's safe after having tested it.

[@arnavkumar3060]

Plot twist: The rat acts dead on the very first milk bottle.

[@rajilakshmi8477]

😁😁😂

[@gobinathbakaran835]

😅

[@muddassir8594]

Now it became harder 😂😂

[@MusicalMannu]

Hahah Rat maybe smart enough and want to work in goggle as well then there might be chances of this lol😉😉😉

[@routadu]

People: Why did you failed your interview at Google ? Me: Because of a rat

[@nadunwijesinghe965]

The answer they were obviously expecting was: *"Wait let me just google that real quick!"*

[@rabbitdrink]

@@helmydewa i use duckduckgo btw

[@snazzyproductionsltd1211]

Lol 😂.under rated comment

[@3ckitani]

*"Wait, let me google that with Bing real quick"*

[@Wravenflight]

Depending on the precision of the poison's effect time window, you could test and drink n = ((24 - 10)/w) - t * ((24 - 10)/w) bottles where w is the precision window in hours and t is the time it takes to drink each bottle assuming you always have a stomach of n * (volume of each bottle) capacity.

[@MonsterERB]

I did the same solution, except with a bit more spacing (0, 5, and 10 hrs for feeding the first 3 samples). I know the problem says EXACTLY 10 hours but I'm a biochemist... and no poison is THAT exact. Spacing the samples out allows for more variability in the actual duration between dosing and death, and still gives plenty of time to identify the poisoned bottle.

[@Sarethofdarkness]

Yep, I also had the Idea of how Toxic it is how the absorption Rate is affected by thinning the Solution with non-poisonous Milk.

[@The_One_And_Only_PudgyPenguinx]

Take a 23 and a half hour nap, wake up, stretch, and hope to God you are a good guesser.

[@shannonrush1299]

Hour 0 feed the rat bottle one Hour 1 feed the rat bottle two Hour 2 feed the rat bottle three Hour 3 feed the rat bottle four. You will have the answer when you time 10 hours after each feeding which will tell you the poisonous bottle. Mathematically you should have an answer in 13 hours. I’m more concerned about drinking three bottles of warm milk that have been sitting around for 13 hours.

[@empathyisonlyhuman7816]

No need to wait until hour 13, if the rat lives past hour 12 you know it's bottle four anyways.

[@universalelements4499]

Also they didn.t specify the volume of bottles, might also be like a shot

[@unclecreepy7025]

Psst, no need to wait an hour between feeding. Just wait like 5 minutes.

[@empathyisonlyhuman7816]

@@unclecreepy7025 The hour between times is just a safety buffer. In case the 'exactly' comment was less accurate than represented.

[@unclecreepy7025]

Logically there’s no need for a safety buffer if the riddle tells you exactly 10 hours. And if you’re suppose to figure in a buffer, just test a bottle at the start (0 hr), 6.25 hr mark, and 13.5 hr mark. The 4th bottle doesn’t need to be tested because if the rat is alive after 23.5 hours, you know it’s the poisonous one. And you’ll have 30 minute buffer for the 3rd bottle and time to drink.

[@alanparker9491]

It seems impossible to me, because if by chance you give the rat any of the good milk you will have less than 3 bottles of good milk left, and you are required to drink 3 bottles of good milk within 24 hours.

[@weihern9741]

Me: See title, confused what's the tricky part Him:People would think the rat only can drink 2 bottles Me:??? Why the heck would I think that 😂

[@AyushAgarwal-YearBTechElectron]

us vro us :)

[@kibbledd1]

Feed the rat from 2 bottles to start--one feeding an hour earlier than the other. If nothing happens after 11hrs, then one of the two remaining bottles is poisoned. If the rat dies within 11hrs, one of the 1st two bottles is poisoned (and you can drink the other 2). Nothing happens: Feed the rat from 1 of the last 2 bottles. If it lives, the last remaining bottle is poisoned. If it dies, the bottle you just fed it from is poisoned. You now know which three are good to drink. The rat dies in the first try: You drink the other 2 bottles that haven't been tested, and--based on whether the rat dies at the 10hr or 11hr mark, you drink the opposite bottle from what killed the rat exactly 10hrs after it drank from it.

[@aldrichtimoty3802]

That's exactly what I was thinking too!

[@xHannibal]

Daniel Kilby Yeah that’s what I was thinking as well.

[@pandora6498]

One flaw: if nothing happens, then you have wait another 10 hours which is not efficient.

[@xHannibal]

Claw4Grip Yeah he wasn’t *fully* optimized with his answer but hey it still works and at least it lets him have something to pay attention to while he’s locked in a chamber with milk and a rat :p

[@ZoSoUsAm]

Feed him him all four bottles right away at hour interval's,mark time for each,hour ten, bottle one is poison, hour eleven, bottle two is poison, hour twelve,bottle three is poison, hour thirteen, bottle four is poison, you will have,12,13,or14 hours to relax and drink you're milk depending on you're marks!!! A little quicker!!!

[@TimZoet]

I would slam the first bottle on top of the rat. Which means that bottle had to be poisonous; since it killed the rat.

[@knight_23]

@@jonathanwood8847 what she said? she deleted her comment

[@jonathanwood8847]

@@knight_23 honestly no idea

[@aashiyanaashfaqueiv-aroll-4131]

🤦😂

[@dudono1744]

It's big brain time

[@ka0t1k1]

Rat: no thanks, i’m not hungry

[@rhinoara7119]

I like the way he stoped with 3 bottles and tried to save the rat

[@jaibalajt833]

why to wait for an hour.. 5min difference is enough this is more optimized 😅

[@bondaeswarcharan5874]

@IBHANAN M then u r asked to take 3 bottles within 24 hrs or u will die so if ur first 3 bottles have poison rat dies and u can't figure it out which one is poisonous and next u will also die😏😏

[@ramaagrawal3480]

@IBHANAN M we have to drink 3 bottles read properly first

[@dushyantkhatri6792]

@IBHANAN M Ab kabhi Google ke liye apply mat karna. Blocklist kr diya

[@syedabdulkhayyum2618]

Jaibalaj bhai tab tho 1min difference aur bhi optimized hogaya na😅

[@shivaranjan1825]

Lol what if u misswd to observe the rat at the time of its last breath In very optimized short time

[@rshipley21]

What if the rat is lactose intolerant, and doesn't drink any of the samples?

[@sigmundjester]

The problem is flawed, because it says you have to drink 3 bottles within 24 hours. Basically meaning that unless you consume a certain amount of milk in 24 hours then you will die. There is no fluid measurement specified other than the measure of “bottle”. For example if a bottle contains 500ml, then that means you have to consume 1500ml, not 1499ml. Similarly it means 3 bottles, not 2.99999 bottles. Since one of the bottles is poisoned and you can’t consume any of that, to fulfill the ‘rules’ of the problem you’d have to consume ALL the other bottles, but if you need to remove some for sampling then you are unable to consume 3 full bottles yourself. If this ‘rule’ can be broken, then you can simply let the rat try one bottle, and if it doesn’t die after 10 hours then you know that is fine, so pour two of the unopened bottles down the drain and divide the good milk into the 3 bottles and then drink it (what?! - it doesn’t specify FULL bottles)

[@trialanderror7351]

Feed him two samples at once, of he dies then focus the next test on only one of the bottle you will have your answer. The only problem is is there only one rat..

[@jp4431]

Day 34: still waiting for him to reveal the tricky part.

[@TheWebboxchannel]

My answer before seeing the actual answer legit was "just drink any 3 bottles right before the 24 hours end. Even if you drank the poisonous milk, you've undeniably drunk 3 bottles of milk within 24 hours".

[@tarun3243]

Lefrave 😂😂😂😂bravo ur genius even after death

[@nischal5598]

Dude Ur Amazing

[@amitshahrewrite9099]

You have selected for nowhere

[@himanshuchougule471]

Makes sense it's not like the poison gonna kill u if u get the medication

[@aadarshhanuman]

Savage !!!

[@teamae]

Easy-Peasy I solved it!!! I've got an idea give 1 sample to the rat if the rat did not die after 10 hours that bottle is safe, give two samples having a gap of hour to the rat if he doesn't die then consume these two milk bottle and if he dies then if the rat dies at the 20th hour don't drink the bottle given first and if he dies at 21th hour just drink the earlier given bottle at last drink the last bottle Hence the three bottles will be consumed 3 hours before the deadline.

[@konradyearwood5845]

In practice you would leave a two or three hour gap between dosing the rat as you might have a resilient rodent in the room.

[@subscribefornothing8333]

So I can get a job with Google if I solve this 4th grade puzzle?

[@KizaWittaker]

Wow, look guys! We have a fuckin genius in the comments!

[@thegreathawk2244]

Wow, look guys! We have a fuckin genius in the comments!

[@legokangaroo5010]

Wow, look guys! We have a fuckin genius in the comments!

[@hotwireyouth4544]

Wow, look guys! We have a fuckin genius in the comments!

[@homosapien2540]

Wow, look guys! We have a fuckin genius in the comments!

[@dannappier7253]

This channel:"it's a logic puzzle, you have to think logically!" Also this channel:"the poison will take effect at EXACTLY 10 hours, regardless of body composition or volume consumed. Also, it works exactly the same on a rat."

[@kjlh9]

Honest

[@simonewers4369]

I think you are confusing logic with accuracy to the physical world. Two very different things. Something can be logical relative to certain definitions or axioms or assumptions which may or may not be true. That's why logicians talk about possible worlds so much. Take this for an example. Suppose Berlin is in Australia and Australia is in the US. It logically follows that Berlin is in the US. This is a valid conclusion despite all statements being wrong. It is perfectly logical but total BS at the same time ;-)

[@lilowhitney8614]

Someone doesn't know what logic actually is

[@agarwalsushant]

You think you're so cool, thinking of stuff that others haven't even considered. Get past it. Your logical ability looks even weaker than that of the maker of this "puzzle".

[@graeme922]

It doesn't claim to take 10 hours on a human, just the rat. It may be that it would take 10 hours considering the composition of the rat in question

[@TheEvilCommenter]

Give the rat a combo of 1&2. If it lives after 10 hrs you know both are good. Then give it bottle 3. If it dies then 3 is poison if it lives 4 is poison. If it dies after 1&2 you know one of them is poisonous. Feed it just 1. If it dies 1 is poison if it lives 2 is poison. That's how I did it.

[@ivybritt4888]

Same

[@flamingkittyumad]

You only get one rat, and if it died of poison from either 1 or two, you do not get another chance to test the bottles. bad risk.

[@Mr.Not_Sure]

LOL. How you feed the rat with bottle 1 if it died after drinking 1&2? :)))

[@lightlord21]

I came up with a different solution, feed 1 and 2 to rat, if fine on 10th hour feed just 1 of 3 or 4. If live 3 it's 4 if not it's 3. If not fine on 1 and 2, feed just one of them, by feeding say 1 and fine must be 2, vice versa. By the 20th hour you have the solution to consume the bottles before 24h

[@matteodv6407]

Or even, just feed the rat from 3 to 3 hours, and take notes of time.

[@martinthelvl10wizard]

The real question is why is the milk yellow? Or are you even drinking milk?

[@ddrolet9978]

Cum

[@unclecreepy7025]

It’s butter milk. Enjoy 3 gallons of butter.

[@BansheeResearch]

Maybe it's Galaxy's edge milk

[@cpsof]

Milk is yellow because it's been sitting around in room temperature for hours.

[@BansheeResearch]

@@cpsof ahh good old lack of TCS or TPHC

[@ingridb.desousasilva8772]

Don't drink that milk. They said "drink three bottles of milk within 24 hours",they didn't say which ones.

[@yatridholakia]

Rat dies of heart attack in the first hour. Me : 👁️👄👁️

[@kunalcolambe8027]

Now, I am searching the guy who put poison in the milk......otherwise I would have working in GOOGLE... LOL..

[@fendoroid3788]

Google: What strategy would ensure you drink 3 bottles of milk within 24 hours? Me, an intellectual: Just drink 3 bottles at random within 10 hours.

[@brighamrichins3]

Drink them all when there's 9 hrs left

[@nickwilson3499]

Brigham richins that was my first thought. I would’ve asked, “do you need to stay alive?”

[@shumymikaball]

Optimised! Depends on what you want to optimise. You can do it in two tests an get more milk.

[@adityadubey1269]

We can categorise them into two groups. N feel from the first group. Wait 10hrs n if it dies. Drink the other two n vice versa. N then repeat it again for the remaining two.

[@mundane3809]

Oh shit this is my first legit solved a puzzle on KZbin. Nobody cares bout it but I feel proud of myself.

[@harleendiaries]

Same! 😁

[@Corzappy]

My brain: eat the rat

[@usb2fw]

Corzappy Amazon would like to offer you a job.

[@justjeff386]

This solution is most efficient with time. But if you need to ensure the maximum amount of milk remaining, you can use more time by feeding once at 0 and if the rat doesn't die at hour 10 then test second bottle, wait an hour test third bottle. That way you may only end up testing one bottle thereby having 3 full bottles to drink. Yes, this doesn't make a HUGE difference but when you're going to die if you don't drink all three clean bottles of milk, I would think test amounts would be consequential.

[@bubba6755]

Thanks for sharing such cool logic puzzles, keep it up!

[@rebelliousbynature99]

My solution: The answer is in the riddle. It says one is poisoned. So you drink 2, 3, and 4 because 1 is poisoned. No need to test on the rat or wait 10+ hours.

[@ccgacha1192]

rebelliousbynature99 My god, someone hire this man

[@rebelliousbynature99]

@@lyzder7298 And with riddles, there is often a play on words or grammar. It would be perfectly acceptable to count "bottle one, bottle, two, bottle three, bottle four" or "one bottle, two bottle, three bottle, four bottle". Thus making "one bottle" equivalent to "bottle one". So when it is revealed that one is poisonous at the end, we already know that because the answer is in the question.

[@IIIIIIIIIIllIIIIIIII]

@@lyzder7298 then there are autists like me who would just go "just don't drink the bottle itself, but the milk"

[@anazahmed509]

Nah, it says 'one BOTTLE' not 'one'.

[@Fux069]

Harvard: Do you want a scholarship?

[@nobitanobi6963]

*Hungry* ...? Grab a *Snikers*

[@shreyamchatterjee9025]

Hungry...? Grab a Snikers

[@xenxkisu]

@@shreyamchatterjee9025 Dada o bolte chaye snickers

[@ayushdayama660]

Hotel? Trivago

[@shreyamchatterjee9025]

Hotel? Trivago

[@anjitahlawat]

You know *Mentos* *Dimag* *ki* *Batti* *Jala* *de* 😂

[@why24x7]

What if rat doesn't drink any of the given milk? Rat : hey human I'm full , drink it if you want else die .. who cares

[@demonetization6596]

I just thought it was poisonous,but might not be deadly so I would just chug 3 bottles

[@rshipley21]

Just click the "I'm feeling lucky" button and things will work out. Edit: thanks everyone. I've never had so many 'likes before'.

[@kushalrahatkar1889]

I assumed the gap of 5 hrs 😂. Anyway the logic worked

[@dhosthai3983]

Even I assumed for 5 hrs

[@stevel875]

Same... Then realised 6 hour delay is even better optimised, as poison won't be that precise and want to minimise overlap of error bars. Solution in video "wrong" because we wouldn't know how to interpret rat dying at 10:30.

[@agnieszkamariafanart2947]

Same. Better be safe than sorry.

[@ssrini2002]

Hmm... You won't be testing one bottle then, but ok process of elimination I guess

[@d.SAiNi.]

Same here 👍

[@lucaspulsar]

I don’t understand why mixing different bottles of milk doesn’t feet? For example, you mix milk from bottles #1 and #2, and give this mixture to rat. Wait for 10 hours, if rat don’t die, that means that poison isn’t in bottles #1 and #2. Then, for example, you give a milk from bottle #3. Wait 10 hours, if rat die - poison was in bottle #3, if not - you can say for sure, that the poison is in bottle #4.

[@saadkhondoker1921]

I have seen this puzzle before. You didn't mention anything about me having a clock to measure time. So I was forced to overthink even after finding the solution.

[@misnad]

I got it . Sooo easy. I must have been a google employee 😒🤔

[@vikasthakkar4084]

Dude, believe me as I am an employee. People post all sorts of things in the name of big companies. The point here I guess was to make people realise that getting into Google is possible. And not think it unachievable

[@devanshumalhotra7667]

i also got it

[@rinkudas6892]

what? i feel so sad for you😂😂😂

[@WhatsUpBiyach]

Dear Sir , We like to offer you a job in Google as Google user , our deepest apology for missing out your job application. With Thanks, Google HR, Mr. Alex

[@utkarshkumar6765]

Ikr

[@isaacyoong2634]

*rat dies and I mix up the bottles accidentally* Me:

[@aadhiyacreations1981]

😁

[@misterfreedom42]

Congrats, you are selected at Yahoo!

[@amp7085]

Again start the process for next 12 hours with new rat 😂😂😂

[@hitarthsingaria7128]

@@misterfreedom42 🤣🤣🤣

[@nikhatrubeena6738]

🤣🤣🤣

[@poisonpotato1]

Feed the rat 30 minutes apart mark the time, discard poisonous bottle based on when rat dies. If it’s the first bottle, it’ll happen 10 hrs later, 2nd 10 hrs 30 minute, 3rd 11 hours later, if it hasn’t happened at 11 hours it’s the 4th. Have 13 hours to spare

[@joericaluwaerts5474]

Very nice riddle, I found the answer but I took an interval of 5 hours instead of 1 hour. It also works that way. I enjoy these kind of riddles a lot.

[@grohinikumar]

Why interval of 1 hr, it can be done even with a minute interval

[@godswillokafor8030]

In less than 2 mins I'd got the answer. Google come employ me ✔✔

[@pranavkothari2462]

Would rather drink 3 bottles of milk at 23rd hour and straight way run to a doctor for the cure of poison 😂😂

[@pranavkallem9823]

Exactly what I was thinking.

[@qaxser2900]

Why do u waste 23 hours I would drink 3 bottles of milk instantly

[@shreyamukherjee2886]

_ qaXser _ why three? Let's have four

[@qaxser2900]

@@shreyamukherjee2886 3 bcoz if u r so lucky u can pay less doctor fee (only for checking, not curing)

[@shreyamukherjee2886]

_ qaXser _ 😂

[@owenfuls9809]

Lmao give all the milk to the rat

[@VideoArchiveGuy]

It's frustrating that Google asks questions like this, not questions about locking, how you would follow a binary crash dump down to the faulting instruction or regular computer-science coding instructions. Granted, that's because their philosophy is "We want to hire you for Google, then find a position that works for you" - which is great. But you also weed out those who are perfectly suited for that job that one team has RIGHT NOW because though they know everything about writing code at interrupt level, they can't solve the poisoned milk bottle problem easily.

[@disguisedhell]

Not hard at all. Unbelievable that Google had asked it. It took me only 5 seconds to realise

[@notayushforsure]

Same here dude

[@jpcogEOD]

I do not believe this would be a Google interview question unless it is specifically a trick question to see if you overthink simple problems.

[@kumailhaider9250]

me too

[@arunh3]

Same here... Well I took like 12s

[@MrPranavsr]

Yeh same here

[@rjtdog180]

Easy, just wait until 16 hours have passed then drink 3 bottles. Won’t ever know if it’s poisonous or not

[@bigmfmusic5895]

No that's not how it works.

[@dspyrofire9242]

Mitchell Ferman Y E S I T IS

[@bigmfmusic5895]

@@dspyrofire9242 the poison doesn't dissappear. It's still there. the poison goes in to effect after 10 hours yes but if its still In the milk then it has nothing to react to (human body) it will be there until the milk has been drunk.

[@ArshadKhan-dt7km]

Why can't we make two pairs and give him a sample from bottle A and B, if he dies that means we just have to perform one more test between A and B, if he survives, we need to do the same for C and D.

[@noahmorales7665]

But if he dies then you can't do the test a second time 😉

[@shieldphaser]

A pretty simple one. Feed the rat two bottles. You've narrowed it down 50/50. Well, unless the rat dies in the first two bottles. Then you don't have a rat to check the second time...

[@KumarVibhav]

Solved within the min. Couldn't be Google's question

[@bdabeat1466]

@@kajacx Don't over think it, read the question and solve it

[@aadarshhanuman]

Me after instantly drinking 3 random bottles of milk.... *Mr.Stark.....I don’t feel so good* !! 😟

[@nachogarcia82]

An interesting alternative problem is: after drinking the poisoned milk the mouse dies in an interval between 8 and 12 hours

[@SyuaibZulkarnain]

Could you divide the bottles to 2 groups and then feed the rat with 2 bottles at the same time? If the rat dies after 10 hours then we just need to feed the rat again with 1 bottle from the first group and if the rat doesn't die that means the remaining bottle of the first group is poisonous I know this is not the optimized solution if it works since it took 20 hours, but do my strategy works?

[@NageshPattanshetty]

*I would just eat the rat and wait till the help from 911 arrives.*

[@jerinhappy5720]

Nagesh Pattanshetty best answer bro . definitely u will get a job in google 😅😅

[@vijayraj7845]

We got the BEAR GRYLLS😂😂

[@the_lite_bulb9730]

Salute

[@nisamudheenmamballi6770]

Cleaver

[@SaurabhSingh-hk6qj]

@@vijayraj7845 Bear Grylls, XD

[@mohsinhassan2982]

Won't the milk mix? Will the rat be able to digest it?

[@Johnny0nFire]

Another way I see being able to do this is to do a mixture of bottle 1 and 2 for the first ten hours (slight delay before rat is fed bottle 2). Then a mixture of bottle 3 and 2. If the rat dies during the first ten hours you know bottle 3 and 4 are okay. And based off when it dies then you know which of the bottles from the mixture is bad. If it dies during the time of the second mixture then that means bottle 3 must be the bad one. And obv if it doesn’t die at all then it’s bottle 4 that is poisonous

[@qwkimball]

"Google applicant dies in tragic Daylight Savings Time mishap."

[@AnshuSingh-vz7wd]

Mix two samples of milk to test... it is actually very easy in fact got it immediately after reading the question.. Edit- I actually forgot that we have only one mouse so don't accuse me in the comment.. I was studying P&C before I attempted this so maybe... so sorry minna😊😊

[@ishanpanhekar780]

Anshu Singh if you mix two samples and the rat dies ..how would you know which of the two samples mixed was poisonous!?

[@AnshuSingh-vz7wd]

@@ishanpanhekar780 oh right.. I actually forgot that we have only one mouse😑😑 thanks for reminding that

[@AnshuSingh-vz7wd]

@Mr Spine What😡😡😡

[@zawngphing29_nov.61]

What if the rat refuse to drink the milk? I never heard of people force feed a rat before...just thinking

[@mosessky5350]

🤣🤣🤣🤣😂🤣

[@Domestofobia]

inject it into him easy

[@TaiSunnyGo]

Doing two bottles at once works though. If it dies, just feed it one to find the poisonous one. Then drink the three that you know are safe.

[@ariezweatherford6861]

How would you feed it again after it died from the first two?

[@mohitgoyal3484]

What if we don’t want to kill the rat? Because you have killed so many rats, bat is killing you now..!!

[@meerkat0369]

*This question has infinite type of answer*

[@abdulquadir3611]

I got it straightaway! But I fed the bottles after a gap of 2 hrs! Hm! Good question, nonetheless.

[@Arya.khandalkar]

Same bro

[@vipul9759]

I solved

[@mrhitesh20]

I thought of the same but in half an hour

[@alligatorpc]

Or this: Weigh all bottles on a balance scale. The one with poison will weigh different than the rest. Or this: Feed 2 bottles to the rat. If he lives you get to drink 2 bottles and then a 3rd in the 29th hour. If after feeding 2 bottles to the rat and he dies, then you know you have 2 that are safe to drink and potentially a 3rd unknown. The good milk is going to spoil faster than the poisonous one so you’d drink 2 bottles of milk and 1 of yogurt lol

[@mistervoldemort7540]

What if the rat fakes a premature death thus killing you?