A blonde woman and a lawyer are in a plane. To spend the time, the lawyer suggests a game to the blonde. She is tired, so she doesn't answer and pretends to sleep. The lawyer tries again in another way: " You ask me a question and, if I don't find, I give you 500 Euros. Then, I ask you a question, but if you don't find the answer, you give me only 5 Euros ! " The blonde woman says ok. The lawyer begins: " What is the distance between the Earth and the Moon? ". The blonde gives him 5 Euros et asks him in her turn : " What has 3 legs by going up the mountain and 4 by going it down? ".
Then she turns her back to him and falls asleep. The lawyer reflects, consults Internet with his mobile phone, riffles through an online encyclopaedia, questions his neighbours discreetly. Unsuccessfully. He fails. After several hours of intense reflection, he wakes the blonde woman up, who pockets 500 Euros.
Good loser but a little frustrated, the lawyer would really like to know : " Well, what is the answer? ". Without saying a word, the blonde woman holds a 5 euros note out to him and goes back to sleep.