What boyband popularized the 1999 hit "I Want It That Way"?

Backstreet Boys

Who was the first murderer mentioned in Bible? Who said, "That's what she said," repeatedly as a catchphrase in "The Office" (U.S.)? Which bird is recognized as the smallest bird species on Earth? The Caucasus Mountains primarily run between the Black Sea and what other sea? What do you call four points lying exactly on the same plane?