A bunch of smart MBA students about to give their final paper got drunk the night before and did not study. The next morning remorse filled them and they thought of a brilliant idea of fooling their dean to obtain a re-exam. They applied oil and grease all over their hands and clothes, and with disheveled   hair, they burst in the examination hall.

They painted a sob story of how their car developed a flat tyre the previous night on a desolate road. They fibbed about how they didn't get any help and how they reached the campus a just a few minutes earlier. They pleaded for a re-exam after a few days. The dean said he was a reasonable man and agreed to give them an exam after three days.

The boys worked hard for the three days and went to the hall confidently. The dean explained that since this was an extraordinary request, the four students would be give the examination from four different halls, the question   paper being the same. A hundred mark question paper was given with,

Only one question

"WHICH TYRE??"

Moral of the story: Teamwork is essential!!!!!