A Wizard of Oz hot-air balloon once hovered over which Las Vegas hotel's main casino?

The Paris subway, "le chemin de fer métropolitain," is usually just called what? 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? During Solomon's reign, which woman filled the new post of queen mother? A female bullfrog may lay 10,000 eggs that hatch into what, which can take two years to become bullfrogs? France's omelette surprise resembles which American dessert of sponge cake and ice cream covered in browned meringue? In 1996, many top racing stars skipped which race to drive in CART's new U.S. 500 on the same day?