there are lodes but i can name a few;
tetraminx, pyraminx, pyramorphinx, megaminx, gigaminx, teraminx and petaminx.
Rubix
from a doctor .his name was rubix too
Actually there is no secret! If you want to solve a rubix cube then you can do it, just learn the rubix cube solution method (I added a link). With this rubix cube solution you'll be able to solve the rubix cube shortly.
You fix
I think you mean rubix cube. For a rubix cube, you just use a variation of algorithms.
There is only one edge piece on 3x3x3s.
CHEAT!
rubix
That depends on what you expect from the cube, like speed, stability etc. If you want a fast cube that is capable to cut corners very well, I'd suggest either a type AV or an F-II. Also the ShengShou and the Dayan ones are awesome. You can buy those cubes at Lightake, which is a popular and trusted speedcubing store or Amazon. Check the link below.
Rubix cube
beyblades
yes