This one of those kids exam answers howlers sites
http://funnyexam.com/popular/answers/2
My favourite
Teachers question
“If you had one hour to live, where would you spend it?”
Student answer
“I would spend it in this class, because one hour here feels like an eternity”
Boadicea's Chariot 
Te he he.
I think that student came up with a pretty good answer.