Purely Puzzles
Math and logic puzzles and their respective solutions
Saturday, November 27, 2021
The Ten Chests
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Reasoning about probability can be very difficult. The puzzle herein is a follow-up of the last one I wrote about , which reminded me a bit ...
The Three Chests
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[Context: the late Raymond Smullyan's The Riddle of Scheherazade: And Other Amazing Puzzles takes place in a setting very like the Tho...
Not A Puzzle for the Health Addict
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The answer to this one wasn't quite satisfactory as you'll see below but I felt like solving it anyway because it was pretty funny: ...
Unrewarded Labor
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A man persuaded Weary Willie, with some difficulty, to try to work on a job for thirty dollars at eight dollars a day, on the condition that...
The Results of Repeated Doubling
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A striking example of an exceedingly fast build-up of some small quantity when repeatedly doubled is the famous legend about the award to be...
Monday, April 22, 2019
Who Stole What from Whom? (Who Stole What from Whom? Part X)
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( N.b. my reasoning differs from that in the solution presented by the author substantially, yet we reach the same conclusion. I am not sur...
Who Stole What? (Who Stole from Whom? Part IX)
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One day, Mike, Spike, and Slug went to the neighboring town of Middleberg and committed three robberies. One of them stole a rifle, one sto...
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