In December 1860, which state became the first to secede from the Union, during James Buchanan's presidency?

Who was William Jennings Bryan's 1900 running mate, whose grandson of the same name also lost two presidential races? A graduate of Egypt's military academy, he became vice president in 1975 and president in 1981. Who is he? "The bubbly" is a slang term for which drink? "Bubbly" was a hit single from which singer's 2007 debut album, "Coco"? Buchanan's presidential dreams were postponed in 1852 when which New Hampshire man won the Democratic nomination? Buck Henry's mother, Ruth Taylor, played Lorelei Lee in the 1928 silent film of which Anita Loos story? Buckingham Palace is in which London borough? Bucky, a buck-toothed cartoon animal, pushed Ipana toothpaste in TV ads. What kind of animal was he?