The Rubik's Cube has puzzled the minds of millions for decades, with most people giving up before ever coming close to finishing the notoriously difficult game. But not teenager Collin Burns, who has completed a cube in just 5.25 seconds, smashing the world record. The US national 'speedcubing' champion was at an official Rubik's Cube event in Doylestown, Pennsylvania, when he shaved 0.3 of a second off the record.
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