This back to child hood riddle is tough enough to test the resolve of even the most experienced conundrum crackers. So get comfortable, take the phone off the hook, limber up those mental muscles and get ready to concentrate on...

John asks his wife, Mary what she wants to celebrate their 40th wedding anniversary. "Would you like a new mink coat?" he asks. "Not really," says Mary. "Well how about a new Mercedes sports car?" says John. "No," she responds. "Would some beautiful new...