Here's another one.
Three guys walk into a hotel and rent a room for $30.00 bucks a night. So the three men split the bill $10.00 a piece and proceed to their room.
The manager forgets about their $5.00 discount , and gives the bellhop $5.00 to return to the 3 guests. However, the bellhop decideds to keep $2.00 for himself and gives the guests back $3.00 as apart of their discount. The men divide the $3.00 equally ($1.00 a piece).
Now, technically the three men spent $9.00 dollars each totalling $27.00 dollars (3x9 = 27) and the bellhop has the other $2.00. so $27.00 + $2.00 = $29.00 dollars. What happeneded to that $1.00?