Okay, a guy at work asked me this today and I could not believe what the answer was.

If I gave you a dime today and you doubled the amount everday, how much would you have at the end of the month?

To lay it out:
Day one - $0.10
Day two - $0.20
Day three $0.40
etc.......

Yeah, it's high. I just wish I had the money to double it every day, lol.

On day 30 if I did the math right you would have $53,687,091.20