Helene Hovanec

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The Puzzler's Paradise: From the Garden of Eden to the Computer Age
Hovanec, Helene

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� 4.95

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Science Puzzles for Young Einsteins
Hovanec, Helene

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� 3.84

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CLUE Code-Breaking Puzzles
Helene Hovanec

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� 4.55

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Mensa Brain Twisters
Hovanec, Helene

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� 6.05

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SIT & SOLVE CRISSCROSS PUZZLES
Hovanec, Helene

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� 5.29

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Pencil Frenzy (Ultimate Puzzle Challenge)
Helene Hovanec

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� 3.45

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Head Twisters (Ultimate Puzzle Challenge)
Helene Hovanec

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� 5.85

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Crisscross Puzzles for Kids: An Official Mensa Puzzle Book (Mensa Puzzle Books)
Hovanec, Helene

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� 3.76

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