Funny Riddles

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

What is it?

Question: There are two planes. One is going from New York to London at a speed of 600 MPH. The other is traveling from London to New York at a speed of 500 MPH.

When the planes meet which one will be closer to London?

Question: What is the best way to stop a dog from barking in, and digging up the front yard?

Question: What has holes on each side, but can still can hold water?

Question: Two is company and 3 is a crowd. What is 4 and 5?