NPR Sunday Puzzle (Feb 8, 2015): Knock! knock!:
Q: Name someone who's the subject of many jokes; two words. Remove the space between the words. Insert the letters O and N in that order — not necessarily consecutively — inside this string of letters. The result, reading from left to right, will be two words of opposite meaning that this someone might say. Who is it, and what are the words?Who's there?