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message 1: by Thall (new)

Thall (recantrecantrecant) | 599 comments Saad wrote: "Q-1 A homeless man picks up cigarette butts discarded in the street. He can make one cigarette with 5 butts. Today he is lucky, he found 25 cigarette butts. How many cigarettes will he make?"

One BIG AF cigarette.

Where's my prize?


message 2: by Sara (new)

Sara Saif | 630 comments 5.
That homeless man is a weirdo.


message 3: by Nigham (new)

Nigham | 4042 comments O.O


message 4: by Nigham (new)

Nigham | 4042 comments 6? O.o


message 5: by Ahmed (new)

Ahmed  Ejaz (ahmedejaz) | 1783 comments What???
How???
Would you like to explain, Saad? I think 5 should be the answer. :(


message 6: by Ahmed (new)

Ahmed  Ejaz (ahmedejaz) | 1783 comments @Nigham
Is that a wild guess??...lol


message 7: by Nigham (new)

Nigham | 4042 comments Haha
5 butts = 1 cigarette
25 butts = 5 cigarettes

and after smoking all of them he again has 5 butts = 1 cigarette :P

5 +1 = 6 :P


message 8: by Nigham (new)

Nigham | 4042 comments Saad wrote: "@Nigham : Tukka mara tha"

SHHHHHHHH!!!! Koi aisa waisa! XD


message 9: by Thall (new)

Thall (recantrecantrecant) | 599 comments lol saad pls. My answer was correct too. He could just make one huge cigarette. That's a possibility with no less value than the possibility of making 5 or 6 cigarettes.


message 10: by Thall (new)

Thall (recantrecantrecant) | 599 comments Saad wrote: "@Genio : your answer was out of the context. He is homeless not drunk :p p"

YOUR QUESTION WAS OUT OF THE CONTEXT TOO!

Are you saying only drunk people are creative and ambitious?


message 11: by Sara (new)

Sara Saif | 630 comments There was nothing in there about the guy actually smoking cigarettes. He just finds them and what? Fixes the pieces together with glue? Can you even make a whole cigarette from cigarette butts? ;)


message 12: by Ahmed (new)

Ahmed  Ejaz (ahmedejaz) | 1783 comments @Saad
Hahahaha....lol!


message 13: by min11 (new)

min11 | 1 comments Because she is winning. I've heard of this one.


message 14: by Maria (new)

Maria (mariasaleem) | 11 comments Maybe she doesn't know yet?
Or she hated the hotel anyway.


message 15: by min11 (last edited Jan 17, 2017 12:51AM) (new)

min11 | 1 comments Technically the answer is that they are playing monopoly, but there is no way that you can outrule countless other explanations.

A problem with many solutions is not a problem at all, but a waste of time.


message 16: by Thall (new)

Thall (recantrecantrecant) | 599 comments Screw these infantile-tier riddles, let's solve something real: If the temperature today is 0'C, and I say that it is going to be twice as cold tomorrow, what will be the temperature tomorrow?


message 17: by min11 (last edited Jan 17, 2017 02:12AM) (new)

min11 | 1 comments How would you know wether to convert it to fahrenheit or kelvin? Because that's obviously how you solve this problem, and both give different and equally nonsensical answers.

Edit: The answer must be around -8 C, because the answer we get from the kelvin scale is too cold. Such temperatures have never been recorded on Earth, and the temperature cannot change so drastically in one day. A good riddle though.


message 18: by Thall (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "How would you know wether to convert it to fahrenheit or kelvin? Because that's obviously how you solve this problem, and both give different and equally nonsensical answers.

Edit: The answer must..."


You cannot solve it by converting. Because each scale has different values, dividing them by 2 post-conversion will yield a different dilation of values for each scale (try converting to kelvin first and then referring back to celsius, then take the fahrenheit route and go back to celsius -- you'll get different results each time).

There's another way to solve it and that would make you appreciate what school has been trying to teach you. -8.9 or -8 is not an answer.


message 19: by min11 (last edited Jan 17, 2017 08:35AM) (new)

min11 | 1 comments Oops, I just realized that only the kelvin scale can be used because absolute zero cannot be changed to a lower temperature. The answer is -136.6 C


message 20: by Thall (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "Oops, I just realized that only the kelvin scale can be used because absolute zero cannot be changed to a lower temperature. The answer is -136.6 C"

Good job at using symmetry. Funnily, you cannot find a concrete answer to this question by experimental methods lol.


message 21: by Thall (new)

Thall (recantrecantrecant) | 599 comments Saad wrote: "twice as cold of what ?"

That's the trick of the question lol. Cold is a qualitative term, not a quantitative one. But you have to apply it to a quantity here (which, conveniently enough, happens to be zero).


message 22: by min11 (last edited Jan 17, 2017 06:14PM) (new)

min11 | 1 comments Genio wrote: "min11 wrote: "Oops, I just realized that only the kelvin scale can be used because absolute zero cannot be changed to a lower temperature. The answer is -136.6 C"

Good job at using symmetry. Funni..."


No, this method is correct. Use this formula-
3/2×Boltzmann constant×temp. in kelvin
To find speed of gas molecules at 0 C. Divide by 2 and then calculate temperature, which is -136.6 in this case. We need to redefine what twice as hot or cold means, as twice as hot as 10 is not 20 by this formula.

Good question, but a boring "substitute the values" physics question.


message 23: by Thall (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "Genio wrote: "min11 wrote: "Oops, I just realized that only the kelvin scale can be used because absolute zero cannot be changed to a lower temperature. The answer is -136.6 C"

Good job at using s..."


Which is why you don't use any equations. The meat of the question lies in the fact that it highlights to you the possible errors that may arise when you apply a qualitative concept to a quantitative one. Needless to say, there is NO correct answer here for 'twice as cold'. But -136.6 at least shows that you have a good number sense. Say if you take the fahrenheit scale and take that value of it which corresponds to 0 of Celsius, then you would get an entirely different answer.

Just a fun exercise: Try using the power formula P = mc dTemp/dt to ascertain 'twice' as cold. Begin with a set quantity of water and put it in room temperature conditions and then take it outside to let it freeze. Measure the time (call it X). Twice as cold would mean that you put X/2 in another equation (or double the power of the first one) for the same quantity of water and same initial conditions. Do the calculations to find the temperature. Now, take different initial temperatures and see the magic.


message 24: by min11 (new)

min11 | 1 comments Here's a brain teaser to fry your brain.

Three foreigners, X, Y and Z are present before you. One of them always lies, one always tells the truth, and one always answers randomly. You can only ask 3 yes no questions and each question must be asked to only one person. Determine who is the honest, false and the random person. But... They're foreigners who aren't too confident speaking your language. They understand you completely, but answer yes and no in their own language, in which bool and ool can be either yes or no. You of course don't know which is which.


message 25: by Thall (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "Here's a brain teaser to fry your brain.

Three foreigners, X, Y and Z are present before you. One of them always lies, one always tells the truth, and one always answers randomly. You can only as..."


What the fuck lmao. This requires a mindfuck of a solution. I'll let it rest in the back of my head until the solution strikes me.


message 26: by min11 (last edited Feb 27, 2017 07:45PM) (new)

min11 | 1 comments Genio wrote: "min11 wrote: "Here's a brain teaser to fry your brain.

Three foreigners, X, Y and Z are present before you. One of them always lies, one always tells the truth, and one always answers randomly. Y..."


Hint: It won't. Don't feel too dumb though, practically no one can do this. Literally the hardest logic puzzle ever.


message 27: by Thall (last edited Feb 28, 2017 03:09AM) (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "Genio wrote: "min11 wrote: "Here's a brain teaser to fry your brain.

Three foreigners, X, Y and Z are present before you. One of them always lies, one always tells the truth, and one always answe..."


I sat down trying to make a triad of XYZ assigning them different roles, and discovered on the very first attempt that it's a pain in the ass even if I take the rigorous approach, and I've never taken a rigorous approach in pretty much anything.

Guess I'll just look the solution up. There's definitely some trick here that's worth learning. What's the name of this puzzle?


message 28: by min11 (last edited Feb 28, 2017 07:34AM) (new)

min11 | 1 comments Genio wrote: "min11 wrote: "Genio wrote: "min11 wrote: "Here's a brain teaser to fry your brain.

Three foreigners, X, Y and Z are present before you. One of them always lies, one always tells the truth, and on..."


As I said, it's literally called the hardest logic puzzle ever. Beyond the comprehension of us mortals.


message 29: by Thall (new)

Thall (recantrecantrecant) | 599 comments NAME OF THE PUZZLE, PLEASE???!!!!

And I'll ask Bern and Lux if they can solve it. Should be fun.


message 30: by min11 (last edited Feb 28, 2017 09:32AM) (new)

min11 | 1 comments Genio wrote: "NAME OF THE PUZZLE, PLEASE???!!!!

And I'll ask Bern and Lux if they can solve it. Should be fun."


Lol, it's so difficult that it's called the hardest logic puzzle ever. Yeah, that's it's name, the hardest logic puzzle ever. Google it. I'd be extremely surprised if anyone you knew solved this; it's not meant for laymen.


message 31: by Thall (last edited Feb 28, 2017 10:01AM) (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "Genio wrote: "NAME OF THE PUZZLE, PLEASE???!!!!

And I'll ask Bern and Lux if they can solve it. Should be fun."

Lol, it's so difficult that it's called the hardest logic puzzle ever. Yeah, that's..."


Holy shit. That solution alone will take me days to comprehend lol. Bern and Lux may already know about this puzzle but I hate asking people questions like 'Can you do this?' when I cannot. I'll pass on sharing it with them. But really though, how the fuck did Boolos himself found the solution?


message 32: by min11 (new)

min11 | 1 comments How about something that can actually be done?

A king wants his daughter to marry the smartest of 3 extremely intelligent young princes, and so the king's wise men devised an intelligence test.

The princes are gathered into a room and seated, facing one another, and are shown 2 black hats and 3 white hats. They are blindfolded, and 1 hat is placed on each of their heads, with the remaining hats hidden in a different room.

The king tells them that the first prince to deduce the color of his hat without removing it or looking at it will marry his daughter. A wrong guess will mean death. The blindfolds are then removed.

You are one of the princes. You see 2 white hats on the other prince's heads. After some time you realize that the other prince's are unable to deduce the color of their hat, or are unwilling to guess. What color is your hat?


message 33: by Thall (last edited Feb 28, 2017 11:04AM) (new)

Thall (recantrecantrecant) | 599 comments min11 wrote: "What color is your hat?..."

White. Because if it were black, one of the other guys could tell the color of his hat. In case I had black, the thought process of one of those guys would be, 'I'm seeing black and white. I can only have a white on my head because if I had black, that one guy would see two blacks so he'll deduce his color'.


message 34: by min11 (new)

min11 | 1 comments Genio wrote: "min11 wrote: "What color is your hat?..."

White. Because if it were black, one of the other guys could tell the color of his hat. In case I had black, the thought process of one of those guys woul..."


Yeah, good job I guess.


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