Universal and Upside-down Magic Cubes

This work brings magic cubes in universal or upside-down way. It is based on 6 magic squares for six sides of the cube. By upside-down, we understand that making  180 degrees rotation still we have a magic square. By mirror looking, we understand that putting magic square in front of mirror, still we get a magic square. When the magic square is of both type, i.e., upside-down and mirror looking, we call it as universal magic square. In case of upside-down situation, then 6 becomes 9 and 9 as 6.  In case of mirror looking, the numbers 2 becomes 5 and 5 as 2 (using digital fonts). The work is only for the magic squares of orders 3, 4, 5, 7 and 8. Whole work can be accessed at author's web-site.