The next morning when they woke up, one of them screamed "The exam is today!" They started thinking of ways to get their Doctor at the university to postpone their exam until the next day. One of them called their Doctor and told him that they were driving to school and suddenly their tire burst and they didn't have a spare. Their situation was difficult and they couldn't make it to the university for the exam. The Doctor agreed to postpone the test for them until the next day. They were very happy.
The next day, the day set for their exam, their doctor asked each one of them to sit in a different corner of the big exam room. He distributed to each one of them a test paper. This is what was on the exam:
- Which of the four tires was it that burst on the car?
- Who was driving the car?
- What was the sitting arrangement inside the car?
- What time did the incident happen?
Of course they failed.