On which classic TV game show did three people all claim to be the same person?

Which composer's famous operas "Rigoletto", "Il trovatore" and "La traviata" premiered between 1851 and 1853? In 1939, Massachusetts, Connecticut and which other original state symbolically ratified the Bill of Rights? Three of the men who raised the flag on Mount Suribachi in World War II had bit parts in which 1949 John Wayne film? Three of which kind of leaf appear on Ontario's coat of arms? In horseshoes, what is a throw that encircles the stake, worth three points, called? What is three goals by one hockey player in one game called? Which psychoanalytic term, Latin for "I", is also used to mean a person's sense of self-esteem? If 3 squared is 9, what is 13 squared?