He didn't jump high enough.
An horse.
A Horse.
Because he was trying to catch up on his sleep!
Of mice and men joke) Because they ran out of Weed :D
Kicking the old drunkard out won't start world war III.
Klondike Bar
Because he higher and higher. (I translated the joke from Dutch, and yeah it's supposed to not make any sense, it just sounds funny, in Dutch at least. :-$)
Of course. The Empire State Building can't jump.