Which word names both a king's headgear and a tooth cover?

Which children's classic is called "El león, la bruja y el ropero" in Spanish? In which Shakespeare play is a king named Duncan murdered? Which Danish-Norwegian king rebuilt Oslo in the 1600s, after which the city was named for him for a time? A kingdom of west central Africa founded around 1390 had which name, like two present-day countries but spelled with a… A klutz or bungler is said to be "all" what? Which knighted Englishman sailed around the world in the Golden Hind? A Kraft favorite that debuted in 1937 contains which food in orange powder form? Which Tom Clancy novel is called "À la poursuite d'Octobre rouge" in French?