Which Native American nation's World War II code talkers used their language to baffle Japanese codebreakers?

What is a solid figure with 6 plane faces called? Which dish is a beef filet covered in pâté and mushrooms, wrapped in pastry? What was a film recording made of a live television broadcast called? A film of which president reviewing troops was shot in Pittsburgh on August 28, 1899; he himself was shot in 1901? Which New York bridge, opened in 1883, did con men famously claim to "sell" to gullible buyers? In "Gulliver's Travels", what are the filthy, brutish humanlike creatures called? In slang, a "fin" is a bill of what dollar value? Which Agatha Christie mystery play debuted in London's West End in 1952?