Cube of Rubik

The Rubix's Cube (or Cube of Rubik) is a mind-squishing brain-melter that utilizes math, geometry, physics, and other useless semi-skills like those. They come in 2X2, 3X3, 4X4, 5X5, 6X6, 7X7, and some other numbers. About 6.1% of people can solve it (according to creamyguitarwarrior) and the other something% cannot.

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