Answer to Puzzle Contest (from the winner):

"dreidel
Remove one of the e's and you have the anagram of riddle (conundrum.) A clue 'by chance' was given in the question. A dreidel is a four faced top spun by Jewish children at Hanukkah. It is a game of chance."

Winner: Ed Smock, Monmouth, IL

Contest Statistics: Newsletter sent to 297400 subscribers, 11 answers submitted, 4 answers correct, 36.36% accuracy. Chance of a correct answer winning: 25.00%.