The biggest question I had was what happens to people that never heard of Christ. The answer I always got was "The gospel has been preached to everyone". That isn't true, not even close. In the local church I grew up in (a Methodist church if that matters) it wasn't okay to say "I don't know" or "I don't know, let me see if the Bible gives an answer". They always felt compelled to just shoot from the hip, and they all gave the same answer. That same question cuts into a similar question, "how can a person who loves what is good, but rejects a gospel preached poorly to him burn for eternity in hell."
I found my answer to that question in Romans 2:14 "For when Gentiles, who do not have the law, by nature do what the law requires, they are a law to themselves, even though they do not have the law. 15 They show that the work of the law is written on their hearts, while their conscience also bears witness, and their conflicting thoughts accuse or even excuse them 16 on that day when, according to my gospel, God judges the secrets of men by Christ Jesus.
Further I discovered that the nature of the lake of fire is not as clear as it is described in tradition. Annihilation is a valid and solid read of the Bible.
I had to search it all out myself, because the church is often stagnated into modes of tradition and comfort. In many cases they stick to a certain realm of teaching ignoring or leaving out whole sections of the Bible. You get the tower of babel and Noahs ark when you are a kid and when you are older you get sermons that Tony Robbins could do. The church I go to now is very different than the one I went to when I was young. We readily go through the OT, even the hard parts.