if you are genius solve this - 10 ( tricky puzzles )

I enjoy a good puzzle every now and again. Particularly one that seems very easy... Until you try to solve it.
next are a five classic questions/ puzzles/ problems. If you've read a bit about problem solving before, you might know some of them. But I hope that you will nevertheless find it interesting to revisit them. (And perhaps make the same mistakes as before!) And if you don't know them, you're in for a treat!

[@ba_livernes]

Answer for the cup contain an awfully unuseful step. 1&2 + 2&3 are sufficient

[@sarijaradat]

the steps (1&2 + 2&3) are necessary to satisfy the rule (all cups have to be moved once at least)

[@ba_livernes]

+sari jaradat That's the point, only two moves are needed. However, in the video, your solution is (1&2+1&3+1&2), when it can be achieved with only the two moves (1&2+2&3)

[@thuanantythieu2764]

+sari jaradat in the first question i use my hand instead.

[@GabbrEL]

exactly! But do you know why he chose the wrong solution? so we COMMENT with ours! He's smart!

[@dancobb118]

1&2 and 2&3 fits the conditions of the test. No our fault if he worded it incorrectly. Both ways fit the conditions.

[@Jvvj256]

For the third riddle, I was first scared becauses I had heard that a rope attached to its both ends formed the shape of a hyperbolic cosinus. Then I felt stupid when I noticed that the double of 7.5 was 15

[@thomasharding1838]

I didn't notice the 2.5m from the ground bit.

[@daviestj]

For the cup flip question, you took 3 moves to make all cups in the same direction. you could have done it in 2.

[@primeirrational]

Yeah, saw it too

[@trying2understand870]

saw that too..

[@xseveredsaintx]

+Norman Pitts my only thought after watching this

[@ifuckinglovelemonsinmymout8877]

0: up down up 1: down up up 2: down down down or 1&2, 2&3

[@thomasharding1838]

@@ifuckinglovelemonsinmymout8877 What is "Lemon Sin My Mouth"??? I see you love it but what is "lemon sin"?

[@RipleySawzen]

This video could be 5 minutes long instead, and thus not suck and lose my attention.

[@ddebenedictis]

So the video is actually a test for ADD

[@RipleySawzen]

Yes, hence the huge number of dislikes.

[@samuelowens000]

The last problem only takes two steps. Flip 1 & 2, then flip 2 & 3. The middle step was unnecessary

[@duckymations9065]

yeah i got triggered at that

[@idaru2]

On the cups, if you flipped 1 & 2 then 2 & 3 wouldn't that be more efficient since less moves ? Or am I missing something ?

[@samuelbruyneel]

As said before about the last problem, your 3 steps are absolutely unnecessary and devious to find a solution with the given rules. I also found a solution with only 2 steps, by turning all cups at least once (1&2 and 2&3).

[@jimu57]

its impossible to have a container EXACTLY half full.

[@IOLEVIOI]

For the first one, you are using the pot as a measuring tool lol

[@kaustubhbibha]

With due respect sir, I feel the fifth puzzle has a simpler solution. Solution:- Step 1) flip 2 and 3 Step 2) flip 1 and 2 They'd all face downwards and would have been moved once atleast. Please do reply. Thank you.

[@thomasharding1838]

#1 First, most glasses and plastic pitchers have convex bottoms which throws off this type of test and secondly, if you tilt it toward the spout, water will pour out before it reaches the edge. So at least turn it sideways first.

[@maddaxxie]

And for the question with the Glas container filled with water: you should have said that you can't you use anything instead of only not using measurement tools. In this way you could for example also mark the water level with a marker, seal the top, flip the container and see how much water there is Haha.

[@malach-osu6355]

The cup one is so stupid you could just flip 1&2 and then 2&3

[@toffej1990]

i was hoping someone else noticed this.

[@brooklego2367]

same also they also should have noticed this as well since it is only 2 steps to follow and not 3 :)

[@nicholasawesomepants4293]

Exactly

[@juliofigueroa4616]

Glad someone else had the same thought process in looking at it like why the hell he being so complicated wit three steps for

[@ifuckinglovelemonsinmymout8877]

i even tested it in notepad and it gave me: 0: up down up 1: down up up 2: down down down

[@ikreal6589]

(I'm french) First problem: I resolved it without problems ! Second problem: I resolved it too, it was easy ! (0,05 + 1,05 = 1,10) Third problem: I didn't resolbed it, because I wanted to use geogebra but I haven't it. 4th problem: I resolved it : A and 7 ! :D 5th problem: I resolved it : flip 1 and 2, flip 2 and 3 and it's finished !

[@kasperclausen2079]

Third problem is so easy. Why would you need geogebra for it. If you're meant to be a 'genius' then you should be able to solve that one without geogebra with ease

[@ikreal6589]

I'm not a genius, and I didn't pretend it :)

[@AlASokolov]

The second problem was solved the hard way. It can be easier to solve. The baseball is X, the bat is X+1, Х+(Х+1)=1,1 2Х=0.1 X=0.5 - baseballs cost , X+1= 0.05+1=1.05 - bat's cost

[@thomasharding1838]

# 4 The task was, and I quote, "Which two cards do you need to turn over to see if John is right?". We know that Vowel cards are even but because we do NOT KNOW the supposed relationship between ODD numbers and Consonant cards, it is not possible to determine if he is right by turning only two cards. (Consonants could be either ODD or EVEN. And EVEN cards could be either Vowels or Consonants.)

[@aleksandro1]

For the 3rd solution Pull the rope from both ends with each meter pulled from each end the rope will lift up 2 times the amount of meters pulled. Let's say hypothetically the towers don't have width. The distance between both of them would be 7.5 because you will pull the rope 3.75 meters from both sides and it will rise up 7.5 meters(3.75×2=7.5). 7.5+2.5= 10 meters which is the height of the towers. This is of course a alternative solution as the other one is 7.5 meters pulled from each side. But yeah. It is partially right partially wrong.

[@Thescragg]

I got them all right, but the trickiest one was the towers because the diagram was misleading. However, a2-c2=b2 has to be 0 since the hypotenuse and a side are the same length. Therefore the towers have to be touching to make a vertical line.

[@fredflintstone7025]

In the cup challenge there was no rule saying you had to flip number 1 every time. Try flipping numbers 1 and 2 and then numbers 2 and 3. There all in the same direction in 2 moves.

[@deathab0ve]

You can't have a parabola for the towers. Also the picture showed a gap. A visual aid only hurt the problem

[@amulyagade6612]

I got the second question millions of times when I was younger.

[@aleksandro1]

For the 5th problem A quicker solution is: flip 1 and 2 then flip 2 and 3 All cups are facing one direction you have moved all the cups at least once.

[@colac07]

Last one can be done by 1. Flip 1&2 2. Flip 2&3 simple no need of extra move there😂😂

[@aaaab384]

When referring to numbers, the opposite of "even" is "odd", and not "uneven".

[@jarradmcdonald680]

It's odd you'd even mention that lol

[@juliofigueroa4616]

+Jarrad McDonald lol I had to read it like 3 times before i got it

[@johnconway8070]

Only TWO flips are neccessary to solve the cups "challenge" . Flip 2 and 3. Then flip 1 and 2 . (or 1 and 2 followed by 2 and 3) . I solved all five of them so either (1) I am a genius, or (2) the problems are absurdly easy .

[@nicolasseifert6707]

1.2 and 1.3 also works I discovered it before I read the comments

[@bikram2955]

not satisfied with two towers puzzle since rope forms a curve occupying more distance than simply straight line. Distance is undetermined in this case but can't be zero.

[@sarijaradat]

the length of the rope is known. it is 15 m no matter it is curved or not

[@bikram2955]

+sari jaradat you can't make rope a straight line and do geometry because rope is curve

[@bikram2955]

+sari jaradat remember if you make straight line over rope 15 m long that line will be shorter than 15 m

[@GabbrEL]

the drawing with the bent rope is just to trick you! Consider the numbers and forget about the picture! It's all analitic

[@GraveUypo]

distance zero implies the towers occupy the same space, and the rope clips itself to attach to the same point.. which is not possible. and even if the towers are touching, the rope can't bend in a perfectly sharp 180 degrees angle and go through itself to attach to the same point on both ends. that rope is either a tiny bit longer than 15 meters, or the distance from the ground is a tiny bit more than 7,5m. also the center of the two ends of the rope are at least the diameter of the rope apart from each other, which makes the distance > 0 it's nitpicking and obviously overthinking a simple puzzle, but it's true.

[@gergodenes6360]

The third one got me triggered. I thought I am supposed to use the Pythagorean theorem.The other ones were pretty easy though.

[@ba_livernes]

Using the pythagorean theorem, you will find the answer is 0. In fact, you get x^2=sqrt(7.5^2-7.5^2), in which case x=0

[@gergodenes6360]

FliiFe Desingn Oh, I just realized I was wrong... I got 8 as answer because 7.5^2*x^2 = 15^2 - This is where i got wrong It's not 15^2, but 7.5^2. Now I see... I substract 7.5^2 of 7.5^2 and I get 0... Welp, I'm a bit dumb

[@ba_livernes]

+Gergő Dénes making errors doesn't make you dumb, and having tried shows you definitely aren't

[@codybouklias5708]

What i have come to know from college Trig, the misleading part of any of those problems is the images that are there to represent the problem

[@freshrockpapa-e7799]

WTF? The pythagorean theorem doesn't apply because there is no triangle.

[@Guust_Flater]

Puzzle 3: 6.14 Between the towers....If distance is 0, then there is no 'between' the towers, in fact, than there is only 1 tower.

[@samanthasmith8296]

Yes except, in the card one, it only states that even numbers will always have vowels, but it never says that odd numbers can't have vowels, so you really shouldn't need to flip over B or 7, because it never specifically states that /only/ /even/ /numbers/ can be vowels.

[@MrWrestling96]

No, you got it wrong. It is if one side has a vowel than the other side will have an even number. Hope i helped.

[@mattimatasch94]

I answered all correctly but the 4th. This was really tricky, I also took A and 4. I realized at the beginning that I must turn the A. But for me all the rest hasn't made any sense. But it's already 3 am and I'm probably just too tired^^

[@markoltedal6006]

Nailed it!

[@kuldeep4932]

+sari jaradat - The cups problem is actually simpler. You can solve it in two flips. Rules say flip 2 at a time and flip all cups at least once. So following that: Before: Cup 1 Regular, Cup 2 Inverted, Cup 3 Regular 1. Flip cups 1 and 2 After: Cup 1 Inverted, Cup 2 Regular, Cup 3 Regular 2. Flip cups 2 and 3 After: Cup 1 Inverted, Cup 2 Inverted, Cup 3 Inverted So all cups are now facing same direction (inverted) As you can see only 2 flips were required!!

[@girlmore4484]

Flip question: 1&3, 1&2, 1&2 does(do the fliping for twice in order to make it touched) or just 1&2, 2&3

[@skipad9462]

There will bee three possible situations 1. Buzz. 2. Buzz. 3. Buzz.

[@pitrex111]

Your solution to problem with cups isn't the shortest. You can flip 1&2 and after 2&3. All cups are then facing up and all of them are fliped at least once.

[@Drogba402]

In the cards puzzle john didn't mention that all cards with no vowels has an odd number .. he only said that all cards with vowels has an even number but that doesn't except that some of the cards with no vowels has an even number too .

[@DarkInd_Equinox]

Honestly you can solve the last one in to moves٫ flip 2٫3 and then flip 1٫2. All have been flipped٫1 once٫ 2 twice٫ 3 once

[@kmparado]

Cups' one cane be done in two movements: 1-Flip 1 & 2 2- Flip 2 & 3 Done

[@katrinathekitchen]

1. Easy, air molecules still fill the container in the "empty" space

[@techz5135]

the last question has a easier answer flip 1-2 then flip 2-3

[@SubinGeorge26]

ikr. but i guess the question should have been like moving the cups atleast once before the "solving move" is done.

[@TrioraMusica]

no. the answer 1-2 then 2-3 is just a better answer.. dont change the rules coz you dont like it!!- i worked out 1-2 then 2-3 as well

[@madhavreddy3489]

last one . it requires only two moves 2-3 and 1-2

[@titanwithatantrum2274]

the baseball and the bat can be solved in 10 different ways all of the ways it's the same

[@vermaneerajin]

We can flips the all cups in same directions only in two moves.

[@RoderickEtheria]

The rope between the towers can only be 2.5 meters from the ground if the ground curves or the rope is not at the top of the towers. If the rope were to be at the top of the tower and the ground did not curve, then half the rope would have to occupy the exact same space as the other half, making the rope only 7.5 meters long. If it shifted even a little bit, there would be a small increase to the distance between the rope and the ground that is not accounted for. And I fail to see why in the cups puzzle, you don't flip first 1 &2 and then 2&3. Saves a step.

[@SkyDog1972]

Nowhere in the written part of the tower puzzle is it stated that the rope that connects the towers is connected to the TOPS of the towers. So we can't solve the puzzle based on the information that is given in writing.

[@Royses1]

the four card problem was very easy by the way... solved it correctly! the baseball and the ball was really tricky, but i noticed it eventually the towers puzzle was cool but a little bit stupid...

[@jnglblls69]

If the distance between the two towers is 0 there is no space for the rope lol

[@ArcticFoxWaffles]

before i look at the answer, i think what you do it put a lid on it first (so the water doesn't come out), then tilt the jug so it is diagonal. If the water level meets the corners of the jug, it's half, if the water level is lower than the corners it is less than half and if the water level is higher than the jug corners then the water level is higher than a half. IT WAS RIGHT!!!! i swear that i did not look at the answer before typing this comment.

[@misakifurukawa5126]

i could solve the 1st one only ..i could solve the last one also..but in another way.the second one was funny.whatever,i enjoyed the game

[@arreighn]

Damn it I spent like an hour trying to work out the arc length calculus of a catenary before realizing the obvious answer.

[@danieljackson3619]

I feel so bad for you, though it seems my laziness has paid off; I just looked at it and said "I bet the answer is half the distance of the rope", though it was more of a lucky guess than anything as I wasn't expecting his solution at all. The hardcore math nerds have elsewhere pointed out that his solution is impossible in physical reality and only works in a Euclidean, analytic sense.

[@MrMacho-lw4zr]

just subtract 2.5 meters each time you pull on the rope. until it is straight. the more you know.

[@drrajeevdahiwal1856]

last one can be done in 2 attempts only

[@peksn]

hell yeah I got the first and third problem right right away

[@GraveUypo]

i fell for the damn tower one. but i didn't honestly put that much thought into it. the others were all easy. the card one is the hardest, but i'm well aware of confirmation bias so that doesn't work on me :)

[@daisy_2234]

i did 2,4and 5...but the 3rd one was difficult and the 1 one I didn't even had a clue but the solution was amazing...😀😀

[@xezzee]

Can I try? you have square, each corner you have a switch which is hidden. When all switches are either up or down the light goes on. You may look at any two corner and either flip or not the switches. You may either do nothing, flipt one or flipt both. After everytime you look the square is rotated so you don't know which corners you just looked. Question. How many times you need to look to the corners in order to ensure that light goes on 100%?

[@ayme5868]

i chose A and 7 wow I actually used my brain for once

[@karkno6656]

The bat and the baseball doesn't make sense because if the bat costs $1.00 more than the base ball then the base ball would cost $0.10, but apparently it is $0.05 for the ball which means that the bat costs $1.05 more than the base ball not $1.00.

[@kasperclausen2079]

That's exactly what it wants you to think. If the ball cost 0.05$ and the bat costs 1$ more. Then the bat costs 1.05$. Add 0.05$ to 1.05$ and you have 1.10$. Remember it's them both combined that cost 1.10$ doesn't say it's the bat only, which is what you've been going for.

[@karkno6656]

+Kasper Clausen but if the ball costs 0.05 then the bat costs 1.05 the the bat isn't 1.00 more is it its not math its logic

[@idaru2]

Sorry, I posted before reading other comments.

[@silentknight7189]

i like the gravity in problem 1 solution 2 ahah

[@bananarama3624]

why is the $1+.10 cent wrong? I've seen it before so I got it right but isn't it technically correct as well as the other one?

[@jussari7960]

the bat costs 1$ more than the ball. If the ball was 10 cents the bat would only be 90 cents more

[@bananarama3624]

Jussi Marttinen but isn't 1-.10=1.00?

[@tokeivo]

Your error is, that the bat costs 1.00 more, for a total of 1.10. If the ball was 0.10 then the bat would have to be 1.10. (1 dollar more). 0.10+1.10=1.20 As an equation: 1.10 = x + (x+1.00) 1.10-1.00 = x+x 0.10 = 2x 0.10/2 = 2x/2 0.5 = x

[@bananarama3624]

Toke Ivø ok, thanks. Understood now.

[@chaeminjung1420]

This is not a genius test - it is made to test your patience.

[@cybernin666]

it would be easier if you move 1 and 2 and then 2 and 3 for the cups puzzle. You move 1 and 3 once and 2 twice as such all cup are facing down in 2 moves

[@aleksandro1]

For the fourth solution we need to flip all the cards because For A there could be a uneven number and he would be proven wrong For B there could be a Even number he would be proven wrong For 4 there could be a consonant he would be proven wrong. For 7 the would be a vowel and lastly he would be proven wrong too. So the answer is all the cards

[@pabcpabc]

1-4 were trivial, 5 has a simpler solution - 1&2 then 2&3.

[@Xtrimi]

thats what i answer at puzzle 1 A: drink it.

[@maddaxxie]

Great video but there are 2 mistakes in it. As mentioned a million times in the comments the cup question can be done easier (or you forgot to say that all cups needed to stand be with the open side on top). And the 4 card question doesn't say that the cards with uneven numbers have consonants on the other side, it only tells us that the even cards have vowels on the other side. So answer a+4 could still be right. (And I read that some people said that the question with the towers isn't correct because of the curve of the rope. That's not true because it could be a really thin rope that folds in the middle instead of bending.) Nevertheless I really enjoyed these puzzles :) (Btw sorry for my bad English Haha I hope everybody still understands what I'm saying ;) )

[@badrunnaimal-faraby309]

If a card has a vowel, it has to have an even number on the other side. If a card has a vowel and an odd number, that premise would be disproven. So for it to be true, a card with an odd number cannot have a vowel and vice versa. It does not imply that if a card has an even number, it has to have a vowel on the other side; an even number can have a consonant on the other side. e.g. Every man is a human but not every human is a man. You only need to check the vowels and odd numbers. The other cards can have either type on the other side and would not affect the truth value.

[@kasperclausen2079]

No the a+4 isn't right, cause if you turn around the 7 it could have a vowel on the other side, which would disprove the theory. The theory is that if there's a vowel on one side then there should be an even number on the other side. That means that if you turn around the 7 and it has a vowel, it would disprove the theory

[@Blaonk_]

2:37 dad how does physics work?

[@Justin-rw3ne]

I did the last one different! I did turn 1 and 3 first. Then, I did 2 and 3 second. Finally, I just turned back over 2 and 3!!! Lol

[@GraveUypo]

the trick is to ALWAYS turn one of them. doesn't matter which one.

[@kurandunyas5929]

4 card problem is faulty. if 7 has a consonant on the other side and A has an even number on the other side, there will not be enough evidence to prove or disprove the suggested rule.

[@harshitsrivastava4296]

In the last problem, you could just have terned ( 1&2 ) then ( 2 & 3 )

[@williamtrempe9328]

only one that got me was the rope one. completely blanked on it haha. the rest were quite easy/seen them before

[@EdenResolve]

how is the second one even a trick its amazingly simple math. I got the right answer in less than 10 seconds in my head.

[@lon8983]

#3 assumes that the rope is tied to the top of each tower, but that is implied by the picture but never stated.

[@Thuva_Bala]

I got 3 correct. I couldn't understand that "a b 4 7" question

[@HD-fy2wu]

The qn is asking u to flip 2 cards only and prove John right or wrong. John said when there is a vowel on one side, there must be an even no. at the other side.

[@redlightning836]

there's another solution for the cup problem. You can flip 2 and 3 then, 1and 2

[@peterpoop7760]

The first puzzle is incorrect. Ther is one mistake and one omission. The jug has a pouring lip, which means that if you pour, as shown in the diagram, the water will start to pour before it reaches the top of the jug. The result cannot be correct. The omission is that the jug is guaranteed to have parallel sides. If the sides are not parallel the "result" cannot work.

[@matthewlewiscomposer]

Wow. I actually figured it out. But there clearly is a dent in the bottom so wouldn't that not work?

[@tescoasda3879]

I don't understand the problem about whether the water is half way, less than or above than, because its quite clear that the water is less than half way.. No abstract thought required to solve it, so is the problem supposed to be what is the solution to prove its half way without measuring it for someone who you assume can't see it correctly

[@TJKing-em1lz]

#4 But then you would not prove that all vowels have even numbers on the other side if the cards you turn over had odd numbers on the other side.

[@mikef2270]

The third problem is just basic logic a brain teaser if you will. If you were really trying to solve this using mathematics you wouldn't use the pythagorean theorem or a parabolic function like mentioned in the comments. In engineering there is a specific term for a rope or chain the hangs and the curve it forms called a catenary and the equation used in cartesian coordiantes requires the hyperbolic cosine function.

[@mylo5034]

my answer was to get another jug and fill it to the same height and measure that jug

[@alstoynev4897]

4 of the answers the hardest was the one with the baseball

[@ethanfuller3367]

The card one is also wrong cuz if you flip 4 and their is a consonant it disproves and if B has even it disproves

[@warriorprincess3751]

Solved the first one without pausing... Does that make me a genius?

[@lukas5683]

you can do the last one faster by turning 1 and 2 followed by 2 and 3

[@TheMakyato]

flip cups 1/2 flip cups 2/3 if is no problem with the direction of the cups same direction the cups are

[@Danicker]

The last problem only requires 2 moves. 1&2 then 2&3

[@dominicinator1420]

I'd just tell the guy the water is about half

[@nagasuresh1657]

Nice bro but last one can be done in two steps

[@TJKing-em1lz]

I did 5 in two flips, twice.

[@Ana-rr4cp]

The one of the towers was the most difficult

[@MrDbs2010]

Half and a quarter of a quarter

[@haydeymc4602]

I answered easily at problem 1 cuz i learned that in chemistry class

[@sarijaradat]

the second one is really tricky

[@axinah3513]

I got it straight away

[@axinah3513]

Spoiler alert Its 5 cents

[@Zanek_power]

I didnt even have to learn it, got it in ~7 seconds...

[@commandersoysauce823]

+sari jaradat using algebra even grade school would get it right no offense bruh i love your video but its not tricky enough

[@katrinathekitchen]

7:15 The towers are not connected directly, old chum, they are connected by a piece of rope that is not made of the same generic material. By the way, you said between the towers, nothing to do with the rope...…

[@Jackerco]

The first one is easy, throw alot of the water on the person asking the question and then tell him its below half and that he needs to take a shower.

[@NioXoiN]

that was explicitly against the rules.

[@Jackerco]

NioXoiN AntyverXioN nah

[@plattari]

NioXoiN AntyverXioN who cares about rules? they are meant to be broken.

[@NioXoiN]

Pertti eräreikä well you see if you break the rules presented in this video you will be sent into the abyss.

[@Jackerco]

NioXoiN AntyverXioN you're lame. It was a joke you moron.

[@ZapPhoenix]

cups is actually a two step 1-2, 2-3

[@KizerRoll]

i shortened the cups thing (0 means top rim up) (1 means top rim down) so i flip either 1 or 3 with 2 in this case i chose 3 so its now 0 0 1 win which now i flip the one that isnt the odd one you started with so now its 1 1 1 i win

[@aleksandardzunic8174]

Water level should be horizontal, Lazy animator?