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All problems © Copyright 2000 Stan Wagon, Rob Leduc. Reproduced with permission.
- Problem 925: The Last Two Digits
- Problem 924: Singular Tic-Tac-Toe
- Problem 923: Diameter 2 Airlines
- Problem 922: Local Maximum
- Problem 921: The Egg Drop
- Problem 920: Plane Color
- Problem 919: A Planar Crossing
- Problem 918: Cube Game
- Problem 917: Explosion
- Problem 916: Tread Wear
- Problem 915: A Peculiar Pentagon
- Problem 914: Where's Bob?
Please don't ask us for answers! Solutions for almost every problem are posted to the mailing list, but at Professor Wagon's request we do not reproduce them here. If you can't sleep without knowing the answer to one of these problems, please contact Professor Wagon at firstname.lastname@example.org.