A subway platform under State Street in which city's Loop is about 3,500 feet long?

AMR Corporation was the parent company of which airline? What do you call a substance that speeds up a chemical reaction without being used up? Complete the name of the Maryland suburb of Washington, D.C.: "___ Spring". Which city borders Providence and is one of Rhode Island's largest cities? Brewer Matthew Vassar opened his namesake college for women in 1861 in which New York city? What is a succession of rulers from the same family called? Which word for a short statement of a principle or rule of conduct comes from the Latin for "greatest proposition"? Complete the phrase for a sudden success that quickly fades: "a ___ in the pan".