A blonde reports for her university final exam. The exam consists mainly of true or false questions.©JOKEDEMO.COM

She takes her seat in the examination hall, stares at the question paper for five minutes, and then in a fit of inspiration takes her purse out, removes a coin and starts tossing the coin. She marks the answer sheet 'true' for heads and 'false' for tails.©JOKEDEMO.COM

Within thirty minutes she is all done, whereas the rest of the class is still working furiously.©JOKEDEMO.COM

During the next few minutes, she is seen desperately throwing the coin, swearing and sweating. The moderator, alarmed, approaches her and asks what is happening.©JOKEDEMO.COM

"I finished the exam," she replies. "Now I'm rechecking my answers."