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Peter Grabarchuk, who has contributed some puzzles to Math is Fun (example: Unfold the Prism) has now produced a book called "The Simple Book of Not-So-Simple Puzzles".
You can see some sample pages from the amazon entry: http://www.amazon.com/Simple-Book-Not-S … 1568814186
(Note: I do not profit from this, just letting you know about it because they look like really cool puzzles)
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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I found another of his puzzles just now. It took me a while to figure out where I knew the name from.
It isn't as hard as some of his others, which is nice.
Why did the vector cross the road?
It wanted to be normal.
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MIF, I picked out all the wrong prism-papers in about 1 minute!!
igloo myrtilles fourmis
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That is pretty quick.
"The physicists defer only to mathematicians, and the mathematicians defer only to God ..." - Leon M. Lederman
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