I've always thought that the correct answer to "How can someone solve a Rubix cube in less than twelve seconds?" was "Dark, dark magic." But apparently it's actually "Science!"
At least that's what this Numberphile video (posted by the folks at Laughing Squid) suggests:
Solve by Ryan Jones. Music by Alan Stewart. See our videos on Rubik's Cube mathematics at: http://bit.ly/rubiksvids DETAILS...
Attribution(s): "Rubix Cube" from Peanut Dela Cruz via VisualHunt.com (CC BY).