Here are some randomly selected joke topics
Cats
Why was the cat afraid of the tree?
Because of its bark.
Stockings
Customer: I'd like a pair of stockings for my wife.
Storekeeper: Sheer?
Customer: No, she's at home.
Moby Dick
How does Moby Dick celebrate his birthday?
By having a whale of a party.
Stupid
Calling you stupid would be an insult to stupid people.
Knock Knock
Knock, knock.
Who's there?
Luke.
Luke who?
Luke behind you, there's a great big monster.
Crab
"Waiter, do you serve crabs?"
"Sit down, sir. We serve anybody."
Christmas Party
How did the chickens dance at their Christmas party? Chick to chick.
Ghosts
What did the ghosts say to Santa Claus?
We'll have a boo Christmas without you.
Witches
How do witches keep their hair in place while flying on their broomsticks?
They use scare spray.