How many justices serve on the U.S. Supreme Court?

How many electoral votes are needed to win the presidency? How many total electoral votes are there? How many senators does each state have? How many voting members are in the U.S. House of Representatives? What is the minimum age to serve as President? How long is a presidential term? How long is a U.S. Senate term? How long is a term in the U.S. House of Representatives?