14-year-old boy has solved a Rubik’s cube in under five seconds, beating the previous world record time by 0.35 seconds. Lucas Etter - was taking part in the River Hill Fall competition in Clarksville, Maryland, on Saturday when he managed to unmix the 3x3 cube in just 4.9 seconds. Video of his feat shows an unruffled Lucas working out his strategy before completing the cube and leaping to his feet as the clock halted at 4.904 seconds. The World Cube Association confirmed that Lucas had beaten the previous best, jude adie