On-air challenge: Insert the letters A and R into the middle of the first clue to get the answer to the second clue. For example, when given the clues "small argument" and "a tax on imports," the answer would be "tiff" and "tariff."
Last week's challenge, from Ken Stern of Brooklyn, N.Y.: Think of a sign that's frequently seen around this time of year — two words of four letters each. Among these eight letters all five vowels — A, E, I, O and U — appear once each, along with three consonants. What sign is it?