Muslims! Do you ever question the Qu'ran?

Yeah I'm Muslim...and there are many things i disagree with the Quran.Like how women are treated,and men can marry 4 wives?? to expand the religion??? and how women HAVE to cover up for respect? i mean why cover up? women can respect themselves in many ways,i think MEN should control their @#% .And men and women should be treated equally. Religion wont take you to heaven, the person you are will take u there.