Here are some randomly selected joke topics
Society
When society turns to graffiti, the writing is on the wall
Knock Knock
Knock, knock.
Who's there?
Luke.
Luke who?
Luke behind you, there's a great big monster.
Wet Paint
Wet Paint - this is not an instruction
Vampires
Where do vampires keep their savings?
In the blood bank.
Pigs
Diner: Can you ask the chef if he has pigs' feet.
Waiter: Not me. I want to keep this job.
Cows
What do cows like to read at the breakfast table?
The daily moospaper!
Think
I used to think.
What made you stop?
Multitasking
Multitasking - screwing up several things at once.
Dogs
What breed of dog rides a horse named Macaroni?
Yankee poodle!