Why is Saturday stronger than Monday?

What has many teeth, but cannot bite?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

What does Alexander the Great and Winnie the Pooh have in common?

There are forty elephants and they have forty-fore heads. How can this be possible?

What part of Turkey has the most feathers?

Which part of London exists in France as well ?

What country can make you shiver?

Rearrange the letters in "new door" to make one word.

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?