"Bigger & Blacker" was the title of a 1999 HBO comedy special by which comedian?

On U.S. road signs, a big white H on a blue background points the way to what? Which singer of "Big Yellow Taxi" was born Roberta Joan Anderson? Bigfoot 5, which stands over 15 feet tall and rides on 10-foot tires, is a famous example of which kind of vehicle? Bigfoot moved in with a suburban family in which 1987 comedy starring John Lithgow? The state of Bihar, the Chota Nagpur Plateau and the Deccan Plateau are all found in which country? Which actress, star of the 1979 film "10," appeared in ads for designer Bijan's fragrance? What is Bilbo's surname in J.R.R. Tolkien's Middle-earth stories? Robert Rubin served as secretary of which U.S. department from 1995 to 1999?