Saw this in the movie the happening and I had the same answer the girl in the movie did(It was wrong lol). Lets see how well you guys do =D
"If I paid you a penny on the first day, 2 pennies the second day, 4 pennies the third, double it everyday and by the end of the month how much would you have?"
Don't calculate it just give me the first number that pops into your head.
I know this threads' shelf life isn't very long lol, but I thought this was interesting and wanted to share with you guys.