A boss had to interview 4 girls for his secretary's position.....
He asked the same question to each one of them....
Boss: A woman normally has lips in 2 different places. What's the difference between the two ?
First Girl: One is hairy, the other isn't.....
Boss: OK... good !
Second Girl: One can talk but the other can't !!! ....
Boss: That's better !
Third Girl: One is vertical and the other is horizontal .....
Boss: Hmm... clever !
Last Girl: One is for me and the other is for my Boss.....
Boss: You are hired !!!