Plus there's the Beano Joke Generator, for random jokes on almost any subject.
Why did the chicken cross the road?
Because he farted so he had to run away from the smell!
How do hens dance?
Chick to chick!
How do chickens communicate?
With fowl language!
Why did the T-rex cross the road?
To eat the chicken on the other side!
How do chickens leave the building?
They use the eggs-it!
Who tells the funniest egg jokes?
Where do tough chickens come from?
Why did the egg hide?
It was a little chicken!
Why did the chicken cross the playground?
To get to the other slide!
Why did Mozart hate chickens?
All they ever say is "Bach-Bach-Bach"!
What do you get if you cross a chicken with a cow?
Why did the dinosaur cross the road?
Because chickens hadn't evolved yet!