Here are some randomly selected joke topics
Even
How do you make seven even?
You remove the 's'.
Difficult
Why be difficult, when with a little bit more effort you can be completely impossible?
Doctors
Doctor, Doctor I feel like an apple.
Don't worry we'll soon get to the core of this!
Clown
Why did the clown wear loud socks?
So that his feet wouldn't fall asleep.
Beer
Who said beer won't make you smarter? It made Bud wiser!
Politicians
During Britain's "brain drain," not a single politician left the country.
Idiot
Watch out for the idiot behind me.
Married
'Are you married?'
'No, I've always been round-shouldered.'
The Alphabet
Why is the alphabet in that order? Is it because of that song?