A "fifth" of liquor is one-fifth of which measure?

Which large bovines still live wild in Tibet at elevations over 14,000 feet? In 1965, the U.S. Mint stopped making dimes and quarters from which metal and switched to a clad coin? In 1864, Elizabeth Bacon married which golden-curled Union cavalry general? Which 1983 Pulitzer Prize-winning novel has a color in its title? A figure is set on fire as part of which annual event in the Nevada desert? What figure of speech is used in "He was a real snake"? What is a solid figure with 6 plane faces called? Which dish is a beef filet covered in pâté and mushrooms, wrapped in pastry?