There are a number of questions that people often ask about whether there is truly a God, how we can know, what God is like. Following are links that address various questions.
Why did Jesus have to die? Couldn't man be saved another way? Why can't God just forgive without Jesus dying?
What about those that have never heard of Jesus?
What does God allow evil and suffering?
Video: How does a good God allow evil--Ravi Zacharias explains 4 minutes