The Paris subway, "le chemin de fer métropolitain," is usually just called what?

Monthly fees paid to groups of physicians for workers' health care evolved into which insurance program in 1939? Portland Head Light stands in which state, the first in the U.S. to see the morning sun? Byzantine jurists helped Emperor Justinian assemble what's known as the Justinian what? Where do golfers hit buckets of practice balls with full swings before a round? Iraq's southern provinces of Basra, Dhi Qar and Maysan sit on top of most of the country's reserves of what? Psalm 23 says, "Yea, though I walk through the valley of" what, "I will fear no evil"? The name of which long-snouted, pig-like mammal of Latin America comes from a Brazilian Tupi word? A Wizard of Oz hot-air balloon once hovered over which Las Vegas hotel's main casino?