This puzzle is called "Dividing the Pie." Every answer is a familiar two-word phrase in which the first word starts "pi" and the second word ends in an "e." So, the "pi-e" is divided. For example, if the clue is "power source for most automobiles," the answer would be "piston engine."
Last Week's Challenge
This challenge comes with help from math puzzle expert Ed Pegg. Take the names of the first nine elements of the periodic table: hydrogen, helium, lithium, beryllium, boron, carbon, nitrogen, oxygen and fluorine. Select one letter from each of these names in order to spell a familiar nine-letter word. Hint: It's a word used in math.
WINNER: Charles Huband of Rockville, Md.
Next Week's Challenge
From listener Michael Duran of Topsham, Maine: Take a familiar French word with three letters. It's a word everyone knows. Then take its meaning in English, also with three letters. Say these two words one after the other, and phonetically they'll sound like another French word everyone knows. What word is it?
Submit Your Answer
If you know the answer to next week's challenge, submit it here. Listeners who submit correct answers win a chance to play the on-air puzzle. Important: Include a phone number where we can reach you Thursday at 3 p.m. Eastern.