872 Best riddles - SOLVE or DIE

A boy was rushed to the hospital emergency room. The ER doctor saw the boy and said, "I cannot operate on this boy. He is my son." But the doctor was not the boy's father. How could that be?

The doctor was his mom.

86.32 %

41 votes

clean funny short

Lost

What can you lose that will cause other people to lose theirs too?

Your temper.

86.32 %

41 votes

logic short

Two baseball teams

Two baseball teams played a game. One team won but no man touched base. How could that be?

They were all girl teams.

86.32 %

41 votes

interview logic math

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