I'm actually fairly curious to explore you being a Freemason and if that is compatible with Christianity (from what I know, it's not). I'll format this in bullet point style for ease of reading. I'd be interested in answers to all questions but I'll take what you give me
Sure, no problem.
First, what does it mean to be a Christian to you?
It means believing in one almighty God as described in the Bible, and that he sent his only begotten son to save us from sin. It means believing that Jesus was crucified and raised up on the third day. And that ultimately he will return and judge the living and the dead. Of course, it also means living the creed as well.
And what are the requirements (and I'm talking more philosophical and theological here) of being a Mason?
At least in the US, you need to be a man, of lawful age (18 or 21 depending on the state), a believer in a supreme being (no atheists allowed), and you must have the recommendation of two masons to join. You must also be of "good report before the world", which means that you must be of good reputation and of no significant criminal history.
2) In your opinion, is this supreme being (which we would more accurately call existence itself, or Being) able to be expressed any other way than He is YWHW revealed through the prophets, kings, law, Christ and the HS?
I'm not sure what you mean by this, to be honest. What do you mean by "expressed"?
3) It's interesting you say masonry doesn't teach that the majority of religions are actually avenues to worship the supreme being who is fixated above all religious expressions. Is that not true? Because that is something that I've positively affirmed with Masons and in their own literature.
There's a fine distinction here that usually gets obliterated in a rush to condemn Masonry. You must have a belief in a supreme being to be a Mason. This does not mean, however, that Masonry teaches that all religions worship the same god. Masonry simply has no stance on the subject, other than saying that no atheist can be a Mason.
Individual masons may disagree, but then again, Masons may have different opinions just like Christians may have different opinions. However, Masonry itself does not teach that all religions worship the same God.
4) How does one get to 'heaven'?
Masonry doesn't provide a path to salvation. I personally believe that it's through Christianity.
5) What is your take on sin? As in, what is it?
A sin is an offense against the rule of God.
6) How does the congregation of Masonry exemplify your devotion to Christ?
There are many central tenets of Masonry that exemplify my devotion to Christ... public service, charity, brotherhood, always striving to be a better person, compassion, and so forth.
7) Is the Bible the Word of God or is it one of many volumes of sacred law?
The Bible is the Word of God. Other masons who are not Christian might see other books as their volume of sacred law. For example, Jewish people may see the Torah as such.
Would anyone have a problem in your lodge (or any) with you vocally praying to Jesus in the lodge itself? Do you believe Jesus is divine?
It's funny you brought this up, because I'm a Knight Templar. Our prayers are to Jesus and our obligations are to Jesus. I believe Jesus is divine.