Complete the saying about missing the big picture: "You can't see the ___ for the trees."

An oxide of which light metal, discovered in 1791, is widely used as a white pigment? In SST, the term for jets like the Concorde, what does "SS" stand for? Which event, occurring underwater, is the most common cause of tsunamis? An underwater tunnel connecting Detroit with which Canadian city opened on November 3, 1930? Which number links an unlucky Friday and a baker's dozen? In a German-speaking household, which title was traditionally used for an unmarried young lady? What is an unnecessary, wasteful or fraudulent project, especially one paid for with public money, called? What is an unraveling line in a nylon stocking called?