Here are some randomly selected joke topics beginning with the letter 'J'
Jamaica
Fred: My girlfriend has just left on a cruise to the West Indies.
George: Jamaica?
Fred: No, she wanted to go.
Jail
Why was the crab sent to jail?
Because he kept pinching things.
James Bond
Who was the first underwater spy?
James Pond.
Jacket
What type of jacket can't you Wear?
A jacket potato.
Jail
Knock knock,
Who's there?
Kermit.
Kermit who?
Kermit a crime and you will go to jail.
Jamaica
Knock, knock.
Who's there?
Jamaica.
Jamaica who?
Jamaica mistake?
Jail
Why was the baseball player sent to jail?
Because he stole second base.
Jail
Did you hear about the English teacher who
was sent to jail?
She got a full sentence.
Jam
Why were the strawberries crying?
Because they were in a jam!