Here are some randomly selected joke topics
Lazy
Why did the lazy man apply for a job in the bakery?
Because he was a loafer.
Snakes
What do you get if you cross a snake and a lego set?
A boa constructor.
Pessimists
How many PESSIMISTS does it take to change a light-bulb?
"What's the point? It'll only blow again."
Monsters
What do you get if you cross a monster with a Boy Scout?
A creature that scares old ladies across the street.
Rabbits
Is breeding rabbits a hare raising experience?
Snowmen
What do you get when you cross a snowman with a vampire?
Frostbite.
Jokes
He finds knock-knock jokes challenging.
Cafeteria
Bacteria: The rear portion of the cafeteria!
Humpty Dumpty
Why is it risky to tell funny jokes to Humpty Dumpty?
Because he might crack up.