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. | Puzzles |
Brain Trainer by William Armstrong |
Updated: 01 March 2025 |
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to Keep Your Mind Young and Agile | Phone: 661-272-9393 | ||||
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![]() ![]() ![]() ![]() So you want to try some puzzles? Great! We've got lots of them. They are sorted by category, then by estimated difficulty level. Click on the Puzzle Title to go to the actual puzzle. If you need help, most puzzles have a Hint as well as a Solution that you can jump to. Good luck. To learn more about the book, Brain Trainer - Puzzles to Keep Your Mind Young and Agile, select this link: About the Book. Or select this link to Get a free copy! To learn more about the second book, Perplexercises - Puzzles to Keep Your Mind Young and Agile, select this link: About Perplexercises. Or select this link to Get a free copy! To learn more about the third book, Brainteasers from the Mojave Desert, select this link: About the Mojave Book. Or select this link to Get a free copy!
This month's feature: Fly Between Runners Puzzle Medium Click here for details. Two runners (Mr. A and Mr. B) stand exactly 10 miles apart. A fly rests on Mr. A's chest. The two men run straight toward each other (each running at 5 miles per hour), and at the same moment the fly flies off of Mr. A heading straight toward Mr. B at 8 miles per hour. When the fly reaches Mr. B, it immediately turns around and flies back toward Mr. A. The fly continues to reverse directions every time it reaches one of the runners. How far will the fly have traveled when the two runners smash into each other? Assume that all three of them maintain constant speeds.
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