Which composer's famous operas "Rigoletto", "Il trovatore" and "La traviata" premiered between 1851 and 1853?

Igneous and metamorphic are two of the three main types of rock. What is the third? Three men from Yemen sued NASA in July 1997, claiming which probe was trespassing on their planet, Mars? Which word names both a distance of about three miles and an association of bowling teams? After the 2004 World Series, fans in which city celebrated their team's first championship since 1918? 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? On which classic TV game show did three people all claim to be the same person?