Here are some randomly selected joke topics
Police
Police Officer: Why are you driving in a bathing suit?
Motorist: I'm in a car pool.
Astronaut
What is an astronaut’s favorite place on a computer keyboard?
The space bar.
Computers
How do you make friends with a computer
Bit by bit.
Vikings
Why do vikings never send e-mails?
They prefer to use Norse code.
Teachers
Teacher to Pupil: Can you name me six things which have milk in them?
Pupil: Cheese, yoghurt, cream - and three cows!
Hair
Knock, Knock.
Who's there?
Hair.
Hair who?
Hair today and gone tomorrow.
Ghosts
Where do ghosts go to get an educated?
High sghoul.
Steak
Diner: Waiter, when I ordered this steak, I said "Well done".
Waiter: Thank you Sir.
Blondes
Q: What do blondes and beer bottles have in common?
A: Both are empty from the neck up.