Corny jokes!
Q: Why can't a bicycle stand on its own?
A: Because it's two-tired.
Q: What happens to nitrogen when the sun rises?
A: It becomes daytrogen.
Q: Where did Noah keep his bees?
A: In the Ark Hives!
Q: Can February March?
A: No, but April May.
Q: What is it called when you kill a friend?
A: Homiecide
"Fish tanks are stupid!"
"Why?"
"Fish don't even have any militaries!"