I think you mean answering?
Did "Mary" sin?
Is "Mary" different from the Blessed Virgin Mary who was preserved from the stain of Original Sin and remained sinless until she was taken bodily up to Heaven?
Was she conceived by a virgin?
No, she was conceived by her parents, St. Ann and St. Joaquim (IIRC), neither of whom were virgins, at least not after they, well, you know.
Does she serve in the role of redeemer?
No, she is co-redemptrix through her cooperation in bringing about redemption through Jesus:
The word "Coredemption" can be understood only vis-à-vis "Redemption." Our Redemption is the "price" that Jesus paid for our salvation, that is, the restoration of sanctifying grace. By "Coredemption" we mean Mary's unique participation in "the payment of the price" of our Redemption: through, with, in, and under Christ, our only Savior and Redeemer. Jesus is our Redeemer; Mary is our Coredemptrix only in complete dependence upon Him: "I am the handmaid of the Lord. May it be done to me according to your word" (Luke 1:38). http://www.voxpopuli.org/book_1_8.php
Is she the "Queen of Heaven"?
Yes.