Here are some randomly selected joke topics
Tact
Tact: The unsaid part of what you are thinking.
Cows
Did you hear what happened when the cows refused to be milked?
There was udder chaos.
Witch
Which witch is good at cricket?
The wicket witch.
Beer
Who said beer won't make you smarter? It made Bud wiser!
Ghosts
Did you hear what happened when the ghosts went on strike?
A skeleton staff took over.
Marry
Why a man would want to marry one wife is a mystery.
Marrying two is a bigamystery.
Computers
What did one computer say to the other computer?
You've got a nice interface.
Girlfriends
Jack: I'd go through anything for you.
Mary: Just the door will be enough.
Witches
How do witches keep their hair in place while flying on their broomsticks?
They use scare spray.