Not to take the thread off topic, but when confronted with questions you can’t answer it’s fine to ask questions of reliable sources (especially here on CAF). However, don’t let others bully you into questioning your faith. Why are they so interested in destroying your beliefs? is the question you need to ask yourself. Besides this, while it’s great to dig deeper into your Catholic faith, you need not be an apologist or have all the answers–no one person has all the answers to all the questions anti-Catholics throw up in our faces. All you need be prepared to do is this:
1Pet.3b[15] Always be prepared to make a defense to any one who calls you to account for the hope that is in you, yet do it with gentleness and reverence.
Note that we are to be prepared to defend “the hope that is in” us, not every doctrine or practice of the Church. IOW, know why you love God and trust in him as a Catholic. And be patient with those who attack your faith for as Jesus declared from the cross: “They know not what they do” when they try to destroy your faith.