Gotchas 

Using exactly four straight lines, without taking your pen off the (virtual) paper, can you join all nine dots?



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A Charming Puzzle, Twentieth Century Standard Puzzle Book, A. Cyril Pearson.

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How should this word be pronounced:

GHOTI

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Can you draw a line through all of the edges in this picture?

Each side is broken into 2 or 3 edges, and there are also 7 edges inside that you have to cross. The line must be continuous, and cross each edge exactly once.



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If …

   ⁷⁄₂₈ of 64 is 16,

   and ⁹⁄₁₂ of 100 is 75,

   and ³⁄₉ of 33 is 11,

what is ⁵⁄₁₅ of 45?

Puzzle Copyright © Kevin Stone

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