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A follow-up title to Alan Wareham's "Brain Teasers", with over 100 brain-teasing questions graded from easy to very difficult. The authors have also written "Take the IQ Test" and "Take the IQ Challenge" series.
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A follow-up title to Alan Wareham's "Brain Teasers", with over 100 brain-teasing questions graded from easy to very difficult. The authors have also written "Take the IQ Test" and "Take the IQ Challenge" series.