Here are some randomly selected joke topics
Snakes
Baby snake: Mommy, are we poisonous?
Mother snake: Yes honey, but why do you want to know?
Baby snake: Well, I just bit my tongue...
Basketball
What do you call basketball nets in Hawaii?
Hula hoops.
Relatives
Where there's a will there's a relative
Girlfriends
Boyfriend: Is that a new perfume I smell?
Girlfriend: It is, and you do!
Dogs
Knock, knock!
Who's there?
.
Alf who?
Alf feed the dog while you're away on vacation!
Parrots
What flies through the jungle singing opera?
The parrots of Penzance.
Popeye
Who makes suits and eats spinach?
Popeye the Tailorman.
Computers
Unix - Reach out and grep someone.
Dracula
Why did Dracula's wife leave him?
Because he was a pain in the neck.