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Cover of IQ Challenge

a novel ·

IQ Challenge

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Over 500 logic puzzles, mind-benders and mathematical teasers compiled into twenty levels of ascending difficulty.

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the long version

Over 500 logic puzzles, mind-benders and mathematical teasers compiled into twenty levels of ascending difficulty.

M

Margaret's verdict

"Over 500 logic puzzles, mind-benders and mathematical teasers compiled into twenty levels of ascending difficulty."

— Margaret

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