Here's my favorite knock knock joke, knock knock, who's there? Europe, Europe who? No you're a poo. :)
I have a blind joke:
A blonde, brunette and a redhead were lined up before a firing squad.
So the soldiers had their guns, ready to shoot, when the brunette shouts EARTHQUAKE! And while everyone turned around, she ran away.
Then, the soldiers had guns ready to shoot again when the redhead shouted TORNADO! And when everyone's back was turned, she ran away.
Then the soldiers had guns ready again, and the blonde yells FIRE!!!
Don’t know knock knock jokes. But, little boy was upset and jealous when his little sister came. After a while the mom set him down and told him they were moving.. Running out of room. Little boy said “ too late she is crawling, she will follow us.”
Two cows standing in a field.
One says "moo".
The other says "You utter cow, I was going to say that!"