This is a simple math ride I heard today.
Think with me. 3 friends go to a pizza place. After eating, they go to pay, and the total is U$30, so each one pays U$10.
The owner of the pizza place knew the guys, so he told the waiter to give them U$5 off. The waiter, unashamed, put U$2 in his pocket and give U$1 to each of the boys.
So, how much did they paid in total? And where is the missing dollar?
Weird! Please, leave a comment about what you think is the result.