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

Four men were in a boat on the lake. The boat turns over, and all four men sink to the bottom of the lake, yet not a single man got wet! Why?

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?

I am sure no one can have two things for dinner. what are they?

What is harder to catch the faster you run?

How many minutes are there in Feb 2017?

Note: The shortest answer is the correct answer.

Prove that the below maths equation is true.

8 + 8 = 91

Prove that twice of ten is the same as twice of eleven.

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

Who always enjoys poor health?