NPR's Puzzlemaster Will Shortz quizzes one of our listeners, and has a challenge for everyone at home.
Due to coverage of the aftermath of Hurricane Katrina, this week's Sunday puzzle segment is available only on the Web at NPR.org.
Challenge from Aug. 28: From listener Frank Morgan, a mathematician at Williams College. (He also has a puzzle page at mathchat.org.) Think of a word whose meaning you can make plural by adding an A at the start. Start with a very common singular noun, add the letter A at the beginning, and you'll make the meaning plural. What word is it?
Answer: YES / AYES
Winner: Oren Helbok from Unityville, Pa.
Challenge from Sept. 4: Name a well-known place in the United States, with a population of at least 40,000 people. It has two words in its name. If you reverse the last three letters of the first word you'll get the first three letters of the second word. What is it?