Which four-story Roman amphitheater, completed in A.D. 80, could seat tens of thousands of spectators?

Which gas is used to give the Goodyear blimps their lift? Emergency medical technicians most often transport patients in which vehicle? What is the term for a milky emulsion of rubber or plastic particles, used in paints and gloves? In which Shakespeare play is Titania the enchanting queen of the fairies? The all-female Mariana Grajales Platoon fought in which country's revolution of the 1950s? Which Arizona senator was a leading conservative voice in the U.S. Senate from 1953 to 1965 and 1969 to 1987? Which word for an epicure was also the title of a food magazine founded in 1941? In which 1947 Albert Camus novel is the Algerian city of Oran sealed off during a deadly epidemic?