Writers know which word, also a verb, as a quantity of 500 sheets of paper?

Alsace-Lorraine was annexed by Germany as a result of which 1870-71 war? Which word names both a magazine founded in 1923 and something said to be "of the essence"? German actor Gert Frobe played the title villain in which 1964 James Bond film? Which word for a freestyle skiing event also names a Muslim dynasty that ruled much of India until 1857? Robert Schumann wrote a famous piano piece in C major in 1836 whose name is also a word for a daydream; what is it? Which two-pointed cocked hat, famously worn by Napoleon, was popular around 1800? What nut, also called a filbert, is Oregon's state nut? What convenience food did Momofuku Ando invent in Japan in 1958?