Which building appears on the back of the U.S. $5 bill?

Which word completes both insults "thick as a ___" and "one ___ short of a load"? London and Sault Ste. Marie are cities in which Canadian province? President William McKinley's portrait appeared on which large U.S. bill, last printed in 1945? Which brand's Whitestrips tooth-whitening product first hit store shelves nationally in 2001? Raymond Chandler's private eye Philip Marlowe works in which big city? Mark Twain was born in 1835, the year which famous comet appeared? In the Bible, which reluctant prophet was swallowed by a great fish? In Shakespeare's "The Taming of the Shrew," which suitor sets out to tame the fiery Katherina?