Think twice
Alex Bellos
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Guardian puzzle master Alex Bellos knows better than anyone that the puzzles we find irresistible are the ones that deceive us. Those that seem blindingly, obviously simple - and yet we can't help but get wrong. These 70 confounding puzzles - which Alex has scoured from across psychology, mathematics, statistics, physics, geography, the science of perception and more - are guaranteed to catch you off guard. But why are you getting them wrong? And how can you get them right?
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