Three guys walk into a hotel. The Bell boy charges them 30 dollars for the room. Each of the thee men pay 10 dollars. The Bell boy gives the money to the manager but is repremanded as the room only costs 25 dollars, he is told to give 5 dollars back. To make things easier he gives each man 1 dollar back and keeps 2 for himself. So in the end each man had paid 9 dollars making 27 in total. The Bell boy kept 2 making 29, so where did the last dollar go?