Humor

The student reported for his university final examination that consists of "yes/no" type questions. He takes his seat in the examination hall, stares at the questions for five minutes, and then in a fit of inspiration, removes a coin from his pocket and starts flipping the coin and marking the answer sheet "Yes for Heads" and "No for Tails." Within a half hour he is all done while the rest of the class is still working. During the last few minutes of the examination, he is seen desperately flipping the coin, muttering, and sweating. The proctor, alarmed, approaches him and asks what is going on. "I finished my exam in half an hour, but I'm rechecking my answers," he replied.