[Wardad]

A professor is doing an experiment on a frog. He cuts off a leg and says, "Jump frog jump!" The frog jumps. The professor takes note of this and cuts off another leg. Again he says, "Jump frog jump!" With difficulty the frog jumps. Writing this down he cuts off another leg and says, "Jump frog jump!" Somehow the frog manages to jump. The professor then cuts off the Last leg and says, "Jump frog jump!"

The frog doesn't jump. Again the professor says, "Jump frog jump!" Still the frog doesn't jump. He came to the conclusion that a frog with no legs is deaf.