A blonde, a brunette, and a red-head all died in a car crash, and they all went to heaven at the same time.
They arrive at the gates of heaven, when God appears and tells them they must pass a laughter test, if they fail, they will be sent to hell.
The objective was to climb 100 stairs without laughing. Each stair will have it's own joke.
The Brunette goes first, and laughs at the 46th stair.
The Red-Head goes second, and laughs at the 77th stair.
The Blonde, makes all the way to the 100th step, when she suddenly bursts out with laughter.
God asks "Why are you laughing now?"
The Blonde says "I just got the first joke!"