There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10

A container contains 100 eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh?

When we see 2 but call 10?

Find the next number in the series below

21 32 54 87 131 ?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

Can you write down eight eights so that they add up to one thousand?

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?

John was piloting a plane behind a car but was never able to overtake it. Why?

Can you solve this amazing hard number series problem?
7, 8, 10, 12, 16, 18 ?