Best riddles

cleanshortwhat am I

Little house

I have a little house in which I live all alone. It has no doors or windows, and if I want to go out I must break through the wall. What am I?
A chick in an egg.
86.62 %
42 votes

cleanlogicshortwhat am I

I cannot be seen

I repeat only the last word you say. The more I repeat, the softer I got. I cannot be seen but can be heard. What am I?
An Echo.
86.45 %
52 votes


The smallest number

Which is the smallest number that you can write using all the vowels exactly once?
fIvE thOUsAnd (5000).
86.45 %
52 votes


Escape strtegy

Your bike crashed into the dark forest and suddenly you saw and deadly panther and jaguar. You got just one bullet. What is your escape strategy?
Simple, you must shoot the panther and drive off in the jaguar (car).
86.32 %
41 votes


Ant and Triangle Problem

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?
So let’s think this through. The ants can only avoid a collision if they all decide to move in the same direction (either clockwise or anti-clockwise). If the ants do not pick the same direction, there will definitely be a collision. Each ant has the option to either move clockwise or anti-clockwise. There is a one in two chance that an ant decides to pick a particular direction. Using simple probability calculations, we can determine the probability of no collision. P(No collision) = P(All ants go in a clockwise direction) + P( All ants go in an anti-clockwise direction) = 0.5 * 0.5 * 0.5 + 0.5 * 0.5 * 0.5 = 0.25
86.32 %
41 votes


Fingers & thumbs

They have not flesh, nor feathers, nor scales, nor bone. Yet they have fingers and thumbs of their own. What are they?
86.32 %
41 votes