3 of 3 people found the following review helpful
Great Puzzle Book,
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This review is from: Sit & Solve IQ Tests (Sit & Solve Series) (Paperback)
While they're all fun to solve, the range of difficulties in this book is pretty wide. Some take < 30 seconds, others I've been thinking about for days. Definitely good for those that love a mental challenge. I've tried 2 other books from this series, and this is the best of those.