Three guys go out for a meal...
After the meal, they are given the bill which totals $30. The waiter takes
$10 of each of them and heads for the counter. Upon reviewing the bill, the
waiter realizes that he has over charged them for the meal by $5. The waiter
returns and as that $5 will not equally split into 3 guys, he gives them
each $1 and keeps $2 for himself...
This means that each gentleman only paid $9 for the meal, totaling $27,
plus the $2 the waiter keeps is only $29... Where did the extra $1 go?