Why are all black people so quick ?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What does the below mathematical rebus mean?

What kind of storm is always in a rush?

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

Who is He ?

I am a type of room you cannot enter or leave. Raised from the ground below, I could be poisonous or a delicious treat. 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?

What time is it when an elephant sits on a fence?

You are on a Boat in the mid of a river. You have two cigarettes with you. One of these two you have to light, how will you light the cigarette?

What is the fastest way to double your money?