There were 3 blondes and they wanted to cross a lake safely. A genie appeared to them and granted each one a wish. The first said "I wish I was twice as clever as i am now," , turned into a brunette and swam across. The second said "5 times cleverer," turned into a redhead, made a boat and rowed across. The third wished "I wish I was 10 times more clever than I am now," Turned into a man and walked across the bridge.