Spending another evening parked in front of the television, staring passively at the screen while your mind turns to mush? Give your brain a blast of energy instead with these stimulating puzzlers that make the most of your gray matter. More than 200 challenges to the powers of human reasoning are packed into these pages where each leaf's turn means another showdown at the I.Q. corral. Apply your skills to everything from geometric teasers to probability...
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