What is the centre of gravity?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

how come the second man dies?

What is harder to catch the faster you run?

Imagine you are in a room with no windows or doors. How will you get out?

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

When it's bad luck to meet a black cat?

Different lights make me strange by changing me into different sizes. What am I?

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?

Why is Saturday stronger than Monday?