a man was sitting next to a blonde lady on an airplane. he knew it would be a long flight, so he asked her if she wanted to play a game. the rules were simple. he would ask her a question, and if she didnt know the answer, she would have to give him $5. then she would ask him a Q, and if he didnt know, he would give her $50. she agreed, and he asked her what the sum of 2 and 2 was. not knowing, she handed over $5.she then asked him, "what goes up a hill on three legs and comes down on 4?"after hours of pondering the question, he finally turned to the blonde(who had fallen asleep), gave her $50 and said furiously, "so what goes up a hill on 3 legs and comes odwn on 4?"and she handed him $5