Here are some randomly selected joke topics
Horses
My mum said to my uncle, 'What's got four legs and flies?'
My uncle said, 'Don't tell me, the horse is dead.'
Mosquito
What do you get if you cross a mosquito and a knight of the round table?
A bite in shining armour.
King
Why is a book like a king?
Because they both have pages.
Prehistoric
What do you call prehistoric sailing disasters?
Tyrannosaurus wrecks.
Carols
A seven year old going to his first carol service demanded indignantly when the collection plate came round, 'You mean we have to pay for this?'
Drunks
Everybody should believe in something -- I believe I'll have another drink.
Boss
Job Applicant: Have you got an opening for me?
Boss: Yes, and don't slam it on the way out.
Water
What can run all day and never get tired?
Water.
Yesterday
If yesterday was today - today would be yesterday.