Not usually. I don't normally answer questions addressed to pagans or any other spiritual path if related to a topic I know nothing about. (i.e. I've read the Bible but I'm no expert on it, so I don't usually answer questions about the Bible unless sometimes when they're asking for an opinion. But for the most part, I leave those Christian questions to the Christians.)
Back to the pagans and related topics - If I know a little bit on the topic, or it sparks my interest, I may voice my opinion, with the preface of "it is my understanding" or something like that to what I state that I believe to be factual - like I did with a question about Freemasonry the other day. I have a friend that is a Freemason but I know very little about it.
Like Tahuti - sometimes I'll give a quick, "would like to help, but this isn't my area" kinda response and star the question so that my contacts will see it as one or more of them may have better answers, or I'll just star it and not throw in an answer if I'm in a hurry.