Here are some randomly selected joke topics
Knock Knock
Knock, knock!
Who's there?
Bea.
Bea who?
Be a good boy and let me in.
Abbreviated
Why is "abbreviated" such a long word?
Ducks
What kind of ducks rob bank vaults?
Safe quackers.
Girlfriends
Last night I told my girlfriend that I would go to the end of the world for her, and she said, "Yes but would you stay there?"
Television
Knock knock!
Who's there?
Watson.
Watson who?
Watson television tonight?
Light Bulbs
How many statisticians does it take to change a light bulb?
One -- plus or minus three (small sample size).
Opinions
If I want your opinion, I'll ask you to fill out the necessary form.
Umbrellas
What is most useful when it is used up?
An umbrella.
Light Bulbs
How many conservatives does it take to change a light bulb?
One after reflecting in the twilight on the merit of the previous bulb.