This goober named Jed was walking down the road one day when he came across his friend, who was carrying a bag.

Jed: "Hey Billy Joe, what you got in that bag?"

Billy Joe: "In this bag here I got me chickens."

Jed: "I sure like chickens.  I bet you if I guess how many chickens you got in that bag you give me one."

Billy Joe: "Jed, if you guess how many chickens I got in this bag, I'll give you both of them."

Jed: "Uhhh...four?"