High school boys skip class and lie to their teacher

Four high school boys agreed to skip class and go see a movie. Reporting to school the next day, they told the teacher that the car in which they had been riding had a flat tire. Much to their relief, the teacher smiled and said, “That’s OK. You missed a short test yesterday, so you four take your seats apart from one another and take out a piece of paper.” As the boys found seats in different corners of the room she asked, “Which tire was flat?” (Illustration Encyclopedia - #13769).