Problems 1–3 were submitted by Karen Doyle Walton, Allentown College of Saint Francis de Sales, Center Valley, PA 18034, and Zachary Walton, a student at Haryard Uniyersity, Cambridge, Mass. Problems 4–5 were furnished by Doug Wagner, 1995 PineDa Drive, Grayson, GA 30221. Problems 6–14 and 16–20 were sent in by teachers at Adlai E. Stevenson High School, Lincolnshire, IL 60069: 6, 7, and 19 by Dene Hamilton; 8, 9, and 10 by Joe Bettina; 11, 12, and 20 by Kathie Rauch; 13 by Neal Roys; 14 and 16 by Tim Kanold; and 17 and 18 by Scott Oliver. Problems 21–24 and 26–28 were created by the Mathematics Education Student Association at the University of Georgia, Athens, GA 30602: Karen Bell, Denise Spangler Mewborn, Mary Beth Searcy, Barry Shealy, Ron Tzur, and Bryan Whitfield. Problems 15 and 25 were taken from 101 Puzzle Problems by Nathaniel B. Bates and Sanderson M. Smith (Concord, Mass.: Bates Publishing Co., 1980). Problem 29 was submitted by Melvin R. Wilson, 610 E. University, Ann Arbor, MI 48109.