Here are some randomly selected joke topics
Doctors
Patient: Doctor, you must help me I keep thinking that I'm a crossword puzzle.
Doctor: Is it getting you down?
Pianos
Why was the piano player arrested?
He struck a chord.
Witches
What do you call a witch who lives at the beach?
A sand-witch.
Friend
Knock Knock!
Who's there?
Ida
Ida who?
Ida like to be your friend!
Wet Paint
Wet Paint - this is not an instruction
Tennis
Knock knock.
Who's there?
Tennis.
Tennis who?
Tennis five plus five.
Stamps
How many 2 cent stamps are there in a dozen?
12
Penny
Knock Knock.
Who's there?
Penny!
Penny Who?
Penny For your thoughts!
Moles
What did the mother mole say to her son?
Where in earth have you been?