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 is full of holes but still holds water?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Which tank will fill first?

During which month do people sleep the least?

How can I get the answer 24 by only using the numbers 8,8,3,3?

You can use the main signs add, subtract multiply and divide.

Which of the below owl is odd one out?

There was a blind man. He had four socks in his drawer either black or white. He opened it and took out two socks. Now the probability that it was a pair of white socks is 1/2.

Can you find out the probability that he had taken out a pair of black socks ?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.