Which is faster, Heat or Cold ? Explain.

When is the top of a mountain similar to a savings account?

What has lots of eyes, but can’t see?

For this puzzle, you might have to find logic in something illogical. But hey, it's fun and a healthy little break from your strenuous puzzle-solving sessions.

Can you decipher the meaning in the following cluster of letters?

ITIT,NCENTCENT

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Why is a river so rich ?

What does a man do only once in his lifetime, but women do once a year after they are 29?

What can jump higher than a building?

What has hands, but can’t clap?

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?