Why aren't there any knock-knock jokes about the United States?

What holiday does Mike Tyson celebrate in December?

What kind of flowers should you not give on Valentine's Day?

What does algae do when it's in trouble?

Why did the comedian keep telling jokes about chemistry?

Why couldn't anyone call the zoo?

What did the salad say to its dad?

Why was the chip acting so goofy?

What do you call fowl that fly into windows?

Why are hockey rinks always rounded?

What did the astronaut say to the three-headed alien?

What do you call a bird that's afraid to fly?

How do you get straight A's?

What do you have in December that you don't have in any other month?

What do you call a tractor that gets paid for what it does?