A Sardar reported for his university final examination that consisted of yes/no type questions.
He takes his seat in the examination hall, stares at the question paper for five minutes and then, in a fit of inspiration, checks his pocket, takes a coin and starts tossing the coin, marking the answer sheet: Yes for Heads, and No for Tails.
Within half an hour he is all done, whereas the rest of the class is still sweating it out.
During the last few minutes he is seen desperately throwing the coin, muttering and sweating.
The moderator, alarmed, approaches him and asks what is going on."I finished the exam in half an hour, but now I'm rechecking my answers."