Funny Riddles

Question: A man runs into a bar and asks for a glass of water. The bartender pulls out a shotgun and yells at him. The man thanks the bartender, then walks out of the bar happily.

Why did the man thank the bartender?

Question: If it takes three men two days to dig a hole, how long does it take one man to dig half of a hole?

Question: My name can have any letter of the alphabet, but I always have 2 X's.

What am I?

Question: A man goes rock climbing and falls. But at the end of the climb, he appears to be fine. What happened?

Question: Which gate can you not go through?