Complete the name of the Maryland suburb of Washington, D.C.: "___ Spring".

A submarine built by John P. Holland, the "Fenian Ram", is displayed at the Paterson Museum in which state? What do a subpoena, a tennis ball and dinner have in common? 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? Which city borders Providence and is one of Rhode Island's largest cities? A subway platform under State Street in which city's Loop is about 3,500 feet long? 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?