Common Sense Test | Brain Teasers | General Knowledge IQ Test - 78% FAIL!

[@owenkellogg3130]

It's more likely that a human will get struck by lightning than a giraffe. There's only about 117,000 giraffes worldwide.

[@johnziersch4605]

But if you have 1 human and 1 giraffe in close proximity on level ground, the giraffe is definitely more likely to be struck.

[@Paul-ik8fm]

I have never struck by a giraffe

[@altareggo]

I got them ALL correct....the second time 😂😂.

[@gary.h.turner]

Q13: Women may live longer than men on average, but in this question that advantage is outweighed by the fact that the girl has 90 possible years in which to die of some cause before she reaches 100 (admittedly, this is more likely to happen in her latter years than earlier on), whereas the man only has 30 possible years in which to die of some cause, so he is approximately three times more likely to reach 100 than she is.

[@MrConverse]

I agree with your reasoning but not that he is three times more likely than she is. I tried to look it up but my results were inconclusive.

[@saphiael-mansub2206]

We're talking general so if we take 1000 women and a 1000 men then more women will reach 100.

[@gary.h.turner]

@@saphiael-mansub2206 But not if you're comparing a 10-year old with a 70-year old! Consider the extreme case of a 1-day old girl vs. a man aged 99 years and 364 days. The baby will have a life expectancy of about 80 years, whereas the man is extremely unlikely to happen to die in the next couple of days, so he will most likely reach his 100th birthday. The stated question is just a less extreme example of this.

[@JasmineSurrealVideos]

Has anyone thought the girl is less likely to die with advancements in medicine, as the guy is 70 so there won't be that much advancement now till he dies, but with a 10 year old girl, there's probably going to be more advances in medicine in her lifetime.

[@Quizzes4U]

Yes, I didn't have space to write that, but the reason it is the girl is a combination of women living longer on average than men and her current age with advancements in medicine over her lifetime. Also if you look at how many men currently make it to 100 compared to women, women win by a mile. The question asked on average.😃

[@vatraveler2704]

If Christmas is AFTER New Years every year, how is a Caesar Salad not named AFTER Julius Caesar?

[@jemma50]

Another great quiz, Ben! I got 44/50 and I think the bonus answer is gravity. Thanks for all your hard work putting together your amazing quizzes. ♥♥♥

[@jaclynvc]

Enjoyed this very much! You are so creative and entertaining. Thank you, Ben! :)

[@Quizzes4U]

Glad you enjoyed it!

[@russelllomando8460]

great format 43 gravity

[@jimmeade2976]

Fantastic challenging quiz, my score 42/50 ... Gravity causes air molecules to stay close to earth; also, "space is a vacuum" does not mean it sucks like a vacuum cleaner, it simply means there is a very small amount of matter in space

[@princesslupi4136]

I missed 12. Not sure about the vacuum question. I do appreciate the explanations during the quiz. Nice touch, as it's always good to know. Tyfs, all you do! P.S I amended my score from Quiz Amp.😊

[@cykkm]

Stats. It's remarkable how much common knowledge was required to infer a plausible answer! Guessed/inferred correctly: 7 2. Giraffes are indeed taller and don't seek shelter. 12. a) most destructive natural phenomena are commonly more energetic; b) the damage area from hurricanes is usually larger in area than a computed nuke blast one, and that's using only a small fraction of the total hurricane's energy; nukes are optimised to deliver as much power in the flash and the pressure wave, but hurricanes aren't. The damage area grows as the power 2/3 with distance, roughly, to get an estimate for the most powerful thermonuclear explosion ever, 50 MT TNT equivalent (USSR). 13. Life expectancy has been growing and is projected to grow, so will increase during the girl's lifetime. 14. Never heard of a case of dismantling the roof and airlifting the cow up and then down. 15. Blinking supplies nutrients and oxygen to the eye, as there is no vasculature in the transparent tissues of the eye. Babies have to blink. 42. Guessed mango from experience. 49. Many materials are hard but brittle. The tooth enamel is seriously hard, so I went with it. Guessed/inferred incorrectly: 1 21. Cat/dog lifetime. Total guesses: 8 Firmly incorrect or no answers: 6 8. Saffron vs. gold. Oops, my data is a few centuries too old. 28. It was impossible to answer, not seeing the display. 35. The pyramid of Giza mummies. Of course, it had been plundered 100+ years ago! 36. Einstein dropping out. He had dropped out of so many educational institutions, that I don't track them… 37. Missed the name 'Tunisia' to a dropout in the king Harold the Bluetooth's most famous invention. 44. Only female bees sting. Didn't know that! Total errors: 7. I passed, but by a small margin… Alternative answers that I considered correct: 3. Photoshopped out by the brain: the blind spot, retinal vasculature. The latter is fascinating. Look at the white screen (blank white page in full screen) or brightly lit piece of white office paper, not shifting your view (a dot could help). Sometimes closing one eye helps. In ≈30 seconds, you'll see a web-like structure criss-crossing the white surface. These are your retinal blood vessels. The Designer has made an assembly mistake and installed our retinae upside-down. The light-sensitive cell layer is the deepest. This is why we have a blind spot (a hole to pass the optic nerve) and can see our own vasculature. The octopus eye is remarkably similar to the mammal eye, but evolved entirely on its own, except with the retina the right way up. That's a double-bummer because visibility under water is not that great. 4. The first president of the USA couldn't have been born in the USA, as there were no USA yet. 6. 'live' from 'evil': permutation, the letters sets are the same. I didn't notice the exact reversal, but I didn't have the benefit of the question displayed. 10. Can hold: opinion, belief. Fun facts: 27. Deepest/tallest mountains. The world's tallest mountain from (the submerged, thus 'wet prominence') base to peak is Mauna Kea of Hawaiʻī. The farthest point from Earth's centre is the summit of Mount Chimborazo in Ecuador, which beats Mt. Everest by more than 2 km. Due to the rotation of the Earth, it's a geoid, 'wider at the waist'.

[@nicholasharvey1232]

I got 44 correct so I did pass, though I feel stupid for missing a few especially the one about Presidents. Also, I believe Earth's gravity is what holds our atmosphere in place. Mars has lost most of its original atmosphere to the vacuum of space, due to its weaker gravity.

[@kevinpayne9475]

@@nicholasharvey1232 also mars unlike earth no longer has a strong magnetic field. So solar winds have virtually ripped it’s atmosphere away.

[@nicholasharvey1232]

@@kevinpayne9475 This, too, is certainly (in part, at least) a consequence of Mars' smaller size. Small planet = weak gravity and weak magnetic field = cannot retain an atmosphere. Case in point: no atmosphere on Mercury, Pluto (that we know of), or most of the solar system's moons-- only the largest few have an atmosphere. There must be some kind of minimum mass threshold below which a celestial body simply lacks the gravity and magnetic field required to maintain an atmosphere. Mars barely makes the threshold if at all, as its atmosphere is only 1% of Earth's.

[@alexhurst3986]

45. Gravity is a marvelous thing.

[@thecarman3693]

But it's not the whole answer.

[@kirkwagner461]

39. I gotta workout my brain more. And Space doesn't pull away the air because it loves the Earth. (Ok, ya ya, its gravity. But I wanna believe in space.)

[@fredjones4820]

Our atmosphere probably prevents us losing the gases. . I only got 32 but I am in southern hemisphere and would have guessed that wrong too.

[@gbone7581]

Gravity, a vacuum doesn't suck air pressure pushes!

[@milleijones2828]

37 right. I'm guessing gravity for the last question.

[@JasmineSurrealVideos]

I got 44 correct out of 50. A few I guessed as 50/50 chance but quite a lot I knew anyway or could work out easy like the broken clock.

[@nurselibby96]

Ben, this was challenging. Though I am not good at riddles. You do need to think. I love dogs, but I am a cat person. I got 40/50. Thank you, Ben.😄👍

[@heatherqualy9143]

Ok, I got a third of these because I simply picked “what would be the more surprising answer?”. Sponge or toilet? First thought is, “Ew. Toilet.” So the answer has to be sponge, or why would you be comparing those two disparate things on this quiz?

[@annikanilsson6152]

With some lucky guesses I got 46/50 and I guess Earth's gravity keeps our atmosphere intact - thanks for another great quiz, Ben! 🙂

[@thecarman3693]

Gravity is just part of the answer.

[@patmcgillhastings9657]

As always...great quiz. 50/50 today and the bonus answer is gravitational pull. Thank you, Ben. Had fun and learned. Really like the blurb about each answer.🤔😊👍

[@tobyfitzpatrick3914]

How could you have learned if you got 50/50..?

[@patmcgillhastings9657]

@@tobyfitzpatrick3914 Sometimes those little blurbs about each answer contains something that I didn't know. Also, sometimes a correct answer is an informed guess and the blub confirms it for me or as before, gives me more info.

[@MrConverse]

3:42, a broken clock could be correct any number of times depending on how it is broken. For example, a broken digital clock would probably not show any time on the display and so it wouldn’t be right at all but one that runs 100 times too fast would be correct many times each day. The correct question here is how often is a *stopped* clock right. And it assumes we are talking about an analog clock with hands or something similar that displays a time even when stopped. Hope it helps!

[@Quizzes4U]

There was a picture 🤣👍

[@beritrisvik8961]

Got 48/50... For the bonus: Gravity...

[@WeaselKing1000]

Oof. Just made it! 40/50. I am very much a cat person and NOT a dog person...however, I'm not a physics person either, so I can't actually come up with the reason for the bonus question!

[@samuelchun1450]

I also passed, but missed 12. Also, gravity. Thank you for the questions.

[@Quizzes4U]

Great job!

[@Magnumaniac]

Good quiz, had to think about a few for a second or two. 48/50 and the Earth retains its atmosphere due to gravity.

[@shyamalganguly3598]

35 correct answers😂😂(the air on earth is trapped in the gravity of the earth and the force required to suck it out isn't enough to break that required escaping force into the space!)

[@CatherineDover]

39/50, damn and blast it!! I prefer dogs to cats but like all animals. Space is a vacuum that is it, it doesn’t suck things up, it’s not a Hoover or a Dyson🤣🤣

[@rachaeltrevorlyes9541]

35, and Gravity 😊 Thanks, Ben 😊

[@kennithprice6807]

42/50 l would have thought gravity or the earth's magnetic field stopping solar flares stripping the atmosphere away which they believe happened with Mars. Very enjoyable quiz Ben thanks very much and we have a dog called Elvis 👍👍😁🏴󠁧󠁢󠁷󠁬󠁳󠁿

[@thecarman3693]

Earth's gravity is only part of the answer.

[@tonydickerson999]

How can you have 1BC when you can't know what is going to happen in the future to use the term BC

[@natsudragneel2640]

Because it is only how we label the years. People in other eras and areas use(d) different calendars

[@0191Marko]

So it’s now official, I am truly a dunce !!! 26/50 😔😔

[@CaptHollister]

44/50 Gravity keeps our atmosphere in place

[@nbeasley2]

That was fun!!

[@nickkwasak]

88% here.

[@sklag1]

43/50 #23 Wouldn't the air pressure inside the plane be higher than the outside pressure? I looked it up and the answer is confusing. The answer given is the same as the quiz answer. Both say it's because of the pressure difference. But when checking the air pressure outside to inside the answer is the pressurised cabin is higher than the outside pressure. If a door can't be opened is it because of the pressure created by speed? Like trying to open a car door at speed.

[@Quizzes4U]

Yes, the pressure would be higher inside, but the way aircraft doors close, the pressure forces the door against its frame. Therefore with such pressure it can't be opened. If you notice, they pull them in, before opening them out, so to speak.

[@sklag1]

@@Quizzes4U Thanks, makes sense.

[@SkyDread]

We really appreciate the facts pop ups you added :)

[@MrConverse]

6:34, I had to think about it when you said, “A quarter is naught point four zero.” ;-)

[@aliciavelarde6200]

Can't answer the final question about space, but I scored a 35😊

[@juliew393]

Good one. 44. Gravity

[@thecarman3693]

Needs more of a reason.

[@tobyfitzpatrick3914]

I'm one of the 78% 😮

[@seansheehan7724]

Thanks Ben, enjoyed once again. However.... not sure about your 2D cloud in #18 😮

[@Quizzes4U]

Me neither. I missed the word cubed.😲

[@seansheehan7724]

@Quizzes4U 😀

[@johannesannema8692]

38/50

[@sysussativa]

bonus answer is an atmosphere combined with a magnetic shield

[@ariesmars29]

The vacuum of space doesn't suck, it's a difference in air pressure that creates a vacuum. Space doesn't have air.

[@richardrossow7169]

The planet's gravity . 41 correct.

[@kevinpayne9475]

44/50 and gravity holds our atmosphere in.

[@thecarman3693]

Although that is true, a simple hand held vacuum cleaner with a hose attachment will get air to go up into the hose even when the hose is vertically inverted, meaning pointed downward. The vacuum in such a device is nowhere near the level of a true vacuum as compared to space yet it seems to overcome Earth's gravity easily. So you might wish to re-think your answer as to why it's not completely the case.

[@kevinpayne9475]

@@thecarman3693 essentially though in a simple statement my answer is correct.

[@rockcat5000]

Missed one. But I answered with standard answers, some of which I disagree.

[@thecarman3693]

Answer: Because a vacuum cannot pull (suck) on anything. There's nothing there to pull --- it's a vacuum. PS --- there's no such thing as suction anyway.

[@Quizzes4U]

Great answer 😁

[@colinellicott9737]

40. The speed makes me nervous, bu that was fun, thx. Space does take gases from our atmosphere despite gravity's weak intentions. There is a plume of Hydrogen reaching past the moon emanating from Earth, per a paper last year that I do not have the reference to, but saw on a reputable KZbin channel. I quibble with 0 dB having sound, as deciBels are a ratio between sounds, when there is no difference between sounds the value is zero, but those two sounds could be no sound or the loudest thing you've ever heard.

[@ksc743]

I knew the answer to the sign language one bc we had a rather unfortunate incident with a sign language interpreter and Nelson Mandela in SA. Luckily South Africans have a sense of humour😅

[@Quizzes4U]

I remember that. 😁

[@ChrissiebirdWales]

31, but in my defence my 68 yr old brain is not what it once was.

[@saphiael-mansub2206]

42

[@fionakierton1231]

12 wrong. Not too bad

[@OneEyedJacker]

44 gravity

[@camrunster]

I assume it's gravity. And because of the American election right now, I just focused on American presidents... Duh!

[@MrConverse]

4:07, 1 km by 1 km *by 1km. We are talking 3D here, right? ;-)

[@Ob14202]

Gravity

[@jk9300111]

Here's one for you, since the break-up of the USSR, what country is the largest as far as land size?

[@gbone7581]

Russia

[@jk9300111]

@@gbone7581 Bingo!

[@tonydickerson999]

A Cumulus cloud that is 1km by 1km has no mass as the is 2 dimensional measurement, now a 1km cube would, sorry but if it is 1km wide by 1km in depth but has no height it cannot hold anything

[@feistyfluxy]

There are far too many variables in certain questions. The clock question for instance - not if it's a digital clock.

[@Quizzes4U]

There was a picture 🤣

[@cykkm]

Thank you for the new wonderful quizzo! Firstly, I have a suggestion: you couldn't call out the question number before the question? The reason is, I had to be in another room where wireless headphones still work, for just enough time for the quiz but where I don't usually take a computer with me. I had only a notebook and a pen. Of course, my notes lost sync at question number 9. I counted 51 questions. :( Pedantically: * Q11 is dubious and could have better asked for the _constant_ velocity. Velocities don't average: if the car spent the first 88 minutes out of 90 travelling 44 miles (v₁=0.5 mi/min=30 mi/h), the remaining 46 miles must be travelled in 2 minutes at v₂=46/2=23 mi/min, or 23×60=1380 mi/h. Of course, 30 and 1380 don't average to 90. * Q50. As some questions are tricks, oxygen is flammable in what medium? It self-ignites and "burns" eagerly in ClF₃, trifluoride chloride, for one, and is the reducer in the reaction, not oxidiser. Oxygen doesn't burn in oxygen, of course, but I hesitated. The extra Q answer: air is heavy stuff. The atmospheric pressure exerts a total force of about 2 tonne-force on the average human body. Fortunately, this is compensated by the same pressure inside the body. Rocky Earth-type planets commonly lose atmosphere due to stellar wind when they're lacking a magnetic field to deflect it. Even the Moon would hold on to an atmosphere of gasses heavier than helium if it had a strong enough magnetic field. Saturn's moon Titan, protected by giant Saturn's magnetic field, has quite a dense atmosphere, and large Jovian moons also have thin atmospheres. Venus doesn't have a magnetic field, so loses its atmosphere at a serious rate, but it needs much more time than the Sun will exist to lose a noticeable amount of its atmosphere: it simply has too much of it. I will try to post my stats in a separate message: YT keeps deleting them.

[@sean900fps]

gravity and magnetosphere ..🥃trap the atmosphere

[@marcusheinz7873]

God created a firmament which has water above...true or false?

[@callanj7282]

18 is wrong

[@johannesannema8692]

Zwaartekracht

[@thecarman3693]

Not enough of a reason.

[@johannesannema8692]

@@thecarman3693 but surely the main reason.

[@thecarman3693]

@@johannesannema8692 Actually no. Although Earth's gravity is a factor, a simple hand held vacuum cleaner with a hose attachment will get air to go up into the hose even when the hose is vertically inverted, meaning pointed downward. The vacuum in such a device is nowhere near the level of a true vacuum as compared to space yet it seems to overcome Earth's gravity easily. So you might wish to re-think your answer as to why it's not completely the case.

[@johannesannema8692]

@@thecarman3693Gravity is really the root cause. Your example applies in the lowest layer of the atmosphere because gravity has created air pressure there. At the top of the atmosphere there is hardly any air pressure because there is no air mass above it. In other words, the air pressure there is equal to vacuum pressure and there will be no movement of air into space ( Because of gravityforces directed towards earth's centre.

[@thecarman3693]

@@johannesannema8692 Well, let's think for a moment. At the uppermost layers of the atmosphere the air is certainly much less dense than near the surface, and gravity is pretty much the same even at 200 miles out. And you are correct that there is little to no pressure differential from that uppermost layer compared to the vacuum of space. But the question is why doesn't the vacuum of space extract the atmosphere away from the Earth? (Wouldn't the vacuum of space work its way through all the layers eventually reaching the surface?) Gravity alone would not be able to do the job if a simple vacuum cleaner can overcome it right at the Earth's surface, where gravity is strongest. And I think you're on the right track by thinking that pressure has more to do with the vacuum cleaner overcoming earth's gravity. However the big reason is in the question ---- it's a trick question. Vacuums don't pull. Even the vacuum of space doesn't PULL on the Earth's atmosphere. So it's a combination of the Earth pulling the atmosphere toward its centre and nothing pulling in the opposite direction.

[@Zengotim]

It's a vacuum, not a vacuum cleaner.

[@thecarman3693]

So? What's the difference?

[@Zengotim]

@@thecarman3693 a vacuum is simply the absence of any matter. It doesn't suck.

[@thecarman3693]

@@Zengotim True, and the same applies to a vacuum cleaner, it too doesn't suck. (There really is no such thing as suction.) Anyway, you gave the correct (and more important) answer in that a vacuum cannot pull on anything, the only force acting on the atmosphere is Earth's gravity. It's a trick question. The only force that vacuum cleaners rely on is air pressure pushing matter and debris into it.

[@Zengotim]

@@thecarman3693 here's a real trick question: When you stop up the vacuum cleaner hose, does this damage the blower motor?

[@thecarman3693]

@@Zengotim Depends on the vacuum itself. If you hear the motor's speed increase when covering the hose you better either shut it off or let the air flow ASAP. This is because most (not all) vacuums use that air flow to cool the motor. (The motor speeds up because it's not moving as much air as before.) I happen to have one that emphasizes that the cooling air is NOT from the vacuum hose flow. So having good flow should always be taken note of. Empty or replace those filter bags regularly! PS: That's a good question that most folks should know the answer to.

[@JFW5358]

43/50

[@fionakierton1231]

12 wrong. Not too bad

[@thenjisdiary3601]

34/50