Their knees. (Not sure if this one translates well to English)
Stevie Wonder
A chicken and an egg are lying in bed. The chicken is leaning against the headboard smoking a cigarette with a satisfied smile on its face. The egg, looking a bit ticked off, grabs the sheet, rolls over and says... "Well, I guess we finally answered THAT question!"
An object oriented programming language.
A woman can understand irony and satire without being offended.
Because their knee grows.
Their knee.
Shine a torch in her ear!
It didn't matter, they were all ears
His poem had ABAD rhyme pattern.
Thesaurus.
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. :-$)