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?

What number when divided in half becomes zero?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

When is the top of a mountain similar to a savings account?

What country can make you shiver?

Why Wine Glass Stem is so long?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

Who is that with a neck and no head, two arms and no hands? What is it?

What part of the chicken has the most feathers?