What African nation’s interior area (excluding oceans, rivers, etc., on its border) is about one-sixth water?

How to win: Send your answer, with your full name and address, either by e-mail to [email protected], or on a postcard to Stan Newman’s Trivia Challenge No. 66, P.O. Box 69, Massapequa Park, NY 11762. Only one submission per person, please. Answers must be received within seven days of publication. One winner will be chosen at random from all correct entries.

Answer to trivia contest No. 59

The first wife of a U.S. president to graduate from college was “Lemonade” Lucy Hayes, Ohio Wesleyan class of 1850. Winner: Michael Frizzell of Redmond, Wash.