In this puzzle game, you must choose between two doors guarded by a truth-teller and a liar. The key question is what the ...

A Kentucky teenager with a talent for solving a type of puzzle known as a 15 puzzle broke a Guinness World Record by solving 10 of them in 1 minute, 16.13 seconds.

Put your math skills to the test by trying this brainteaser that's bound to leave you scratching your head. It sounds simple ...

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