Here are some randomly selected joke topics
Cows
Where do cows like to go on a Saturday night?
To the MOO-vies.
Girlfriend
Fred: My girlfriend has just left on a cruise to the West Indies.
George: Jamaica?
Fred: No, she wanted to go.
Carpets
What item is usually bought by the metre, yet is worn by the foot?
A carpet.
Insomniac
What do you get if you cross an insomniac, a dyslexic, and an agnostic?
Someone who will lie awake all night wondering if there really is a dog.
Psychics
Why do psychics have to ask you for your name?
Knock Knock
Knock, knock.
Who's there?
Rabbit.
Rabbit who?
Rabbit very carefully, it's a Christmas present!
Flies
Waiter, there's a fly in my soup.
Throw him a doughnut, sir, it'll make a good lifebelt.
Blondes
Q: How do you make a blonde laugh on Monday mornings?
A: Tell them a joke on Friday night!
Girlfriends
Boyfriend: Is that a new perfume I smell?
Girlfriend: It is, and you do!