Here are some randomly selected joke topics
Students
How many engineering students does it take to change a light bulb?
One, but the rest of the class copies the report.
Doctors
George: "Do you know what Dr Williams's specializes in?"
Tom: Yeah, he diagnoses wallets."
Ghosts
When do ghosts like to play tricks on each other?
On April Ghoul's Day.
Dracula
Did you hear about the man who kept thinking he was Dracula?
He was a right pain in the neck.
Police
Knock, knock.
Who's there?
Police.
Police who?
Police open the door and let me come in.
Girlfriends
What did the artist say to his girlfriend?
"I love you with all my art."
Lightbulb
Why did the lightbulb not go to college?
Because it wasn't very bright.
Landlord
The landlord said he wanted me to treat the place like my own home. So I did - I didn't pay the rent.
Blondes
Q: How do you make a blonde laugh on Monday mornings?
A: Tell them a joke on Friday night!