One day a man was sitting in his office in the 9th floor of a ten story building,

someone just rushed in shouting JONNY your daughter JOY has just got an

accident across the street just opposite this building. On hearing this he

immediately Jumped out from the window, on getting to the 5th floor he

realised that he had no daughter called JOY, and on getting to the 3RD floor

he remember that he IS NOT EVEN MARRIED and finally when he landed on the

ground he now knew that his name was not even JONNY.