Fun Riddles

Question: No matter how much rain comes down on it it won't get any wetter.

What is it?

Question: I am a nice word composed of five letters, but the Romans would call me a numbers.

What am I?

Question: If 1+9+8=1, what is 2+8+9?

Question: A man shaves several times a day, yet he still has a beard.

Who is this man?

Question: How can forty elephants have forty-fore heads?