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

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

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

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).

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

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

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

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 ?

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.

its impossible to have a container EXACTLY half full.

Nailed it!

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

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.

(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 !

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

#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.

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

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

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

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

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

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

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.

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.

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.

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

you are genius👍

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

+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!!

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...

i like the gravity in problem 1 solution 2 ahah

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

# 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.)

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.

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

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.

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

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

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 .

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...😀😀

I solved three of them correctly

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

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^^

last one can be done in 2 attempts only

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

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 .

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

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.

Half and a quarter of a quarter

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

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.

I have got and infinite amout of solutions for the cup question :D

Nice bro but last one can be done in two steps

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%?

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

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.

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

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

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

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

4 cards: answer A & 7 is correct, but the explanation is not quite correct. turning around 4 wouldn't confirm john's rule! he never said, on the backside of each even number you'd find a vowel.

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.

Puzzle Cups: I got it in 2 moves... NOT 3 Starting: Up / Down / Up 1: Flip 1 & 2... Down / Up / Up 2: Flip 2 & 3... Down / Down / Down Bat & Baseball: Got it. The Two Towers... Misleading... The Sketch given has its two towers separated by a WIDE GAP! Pitcher with water: Common sense should give me the answer... But I did not get it. The Four Cards... Nope... I can't understand the question to begin with.

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 :)

THX SO MUSH

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.

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.

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

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

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

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

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

or you could just flip 1 and 3 then 1 and 2 and then 1 and 2 again??!

I did 5 in two flips, twice.

The way they did the text is too annoying to watch the entire video.

the towers one is the hardest for me

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

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

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

at the cup one you need to do like this 2 3. And then. 1 2

up down up flip 1&2 = down up up flip 2&3 = down down down

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

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.

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

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

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

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.

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

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

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?

#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.

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

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...…

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

the cup one is vvvvvvvvvvvvvvvvvvvvvvvv easy anyways others were a bit hard

Water level should be horizontal, Lazy animator?

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

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

Tower problem generalisation by algebra and trigonometry ? General solution is what by calculus?

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 ;) )

flip 1 and 3, then flip 2, and flip 2 again!