Here are some randomly selected joke topics beginning with the letter 'F'
Firefly
What did the firefly say to his girlfriend?
You light up my life.
Fired
My brother said, 'I want a job as a human cannonball.'
I said, 'I'll bet you get fired.'
Finished
Bill: I just finished my first book.
Joe: Well done.
Bill: Thanks. Next year I'm planning to read another one.
Fireflies
How do fireflies start a race?
'Ready, Steady, Glow!'
Fireman
What did the Spanish fireman call his two sons?
Jose and Hose B
Fired
Why did the human cannon ball consider himself a failure?
Because he was always being fired.
Fire engines
How do you get five donkeys on a fire engine?
Two in the front, two in the back, and one on the roof going EE-AW-EE-AW.
Firefly
Why did the baby firefly get awarded a prize at school?
Because he was very bright for his age.
Firefly
What did one firefly say to the other one?
Got to glow now.