Because they always leave you stumped!
He had a stalemate.
Just pay for your pizza.
Because she was a-Kraid to. Now I think about it, this joke is a bit more "Riddle-y," than say an actual joke.
An Envelope EDIT: My deepest Canadian apologies to those who are calling this a riddle. I always took it as a cheesy joke
Gee I'm a tree!
There's nothing else to climb in the jungle.
It was stumped.
He was stumped.
