that's impossible, a normal pc will reject the Mac OS X, that's why we have hackint0sh, hackint0sh are hacked mac wich can fit on a normal pc, but you have to know how to use your computer in order to install the if you are newbie you'll probably destroy your pc.
3) waste of time as i said will not work
2) .exe files will not run on a mac, you can search for .dmg files.
4) check (3) :D