Wednesday, Tom and Joe went to a restaurant and ate dinner.
When they were done they paid for the food and left.
But Tom and Joe didn't pay for the food. Who did?
Wednesday (the name of the third person in the group, not the day).
A public library suddenly announced that each member could borrow an unlimited number of books and not return them for up to six months. Why?
The library was moving to a new building, but due to poor budgeting, they had little money left for the move. By giving borrowers extra time, it ensures that the borrowers moved most of the books.