What does the Bible say about the virgin Mary? Is the immaculate conception biblical? Does the Bible teach the perpetual virginity of Mary? Is Mary the mediatrix and/or co-redemptrix?

What does the Bible say about the virgin Mary? - https://www.gotquestions.org/virgin-Mary.html

Is worship of saints / Mary biblical? - https://www.gotquestions.org/worship-saints-Mary.html

Is prayer to saints / Mary biblical? - https://www.gotquestions.org/prayer-saints-Mary.html

Is Mary the co-redemptrix / mediatrix? - https://www.gotquestions.org/Mary-redemptrix-mediatrix.html