A camera orbiting which planet photographed a crater resembling a happy face in March 1999?

Which cabinetmaker by trade developed the railway sleeping car called the "Pioneer" in the 1860s? Which three-letter name belongs to both a cable TV network and an explosive? What is a cafeteria on a movie studio lot traditionally called? Complete the saying: "A camel is a horse designed by a ___." What slang name is given to a can or bottle opener with a pointed triangular end? Which Canaanite storm and fertility god was denounced by Hebrew prophets such as Elijah? A Canadian war memorial stands atop which French ridge, where fighting raged in April 1917? What term do accountants use for an asset canceled from the books as a loss?