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There's nothing quite like putting yourself to the test - whether it's a quiz on the television or a quiz night down your local pub - seeing if you can outsmart the quizmaster is hard to resist. But ...

A challenging brainteaser tests critical thinking with a math problem of finding the missing value: 3 - 3 x 6 + 2 = ?. Solvers have seven seconds to use the BODMAS rule. Frequent practice of such ...