The copper mineral azurite is known for what vivid color?

Ayn Rand's original working title for which 1957 novel was "The Strike"? Azeri, a Turkic language, is the official language of which country? In Islamic tradition, the name Azrael is commonly given to which figure? In Spanish, "azul marino" and "azul celeste" are shades of which color? Who was shot dead by federal troops on April 26, 1865, twelve days after breaking his leg leaping onto a stage? "B-boying" is another term for which acrobatic street dance that became a craze in the 1980s? Babbo Natale, Père Noël and Kris Kringle are names for which figure? Before joining the Yankees, Babe Ruth played from 1914 to 1919 for which team?