A blonde reports for university final exam which consists of mainly true and false
questions. She takes seat in the examination hall, stares at the question paper for five
minutes, and then in a fit of inspiration, takes a coin and starts tossing the coin and
marking the answer sheet: true for heads and false for tails. Within thirty minutes, she is
all done. Whereas the rest of the class is still working furiously.
During the last few minutes, she is seen desperately throwing the coin, swearing and
sweating. The moderator, alarmed, approaches and asks what is happening.
"I finished the exam in half an hour," the blonde replies. "Now I'm rechecking my answers."