A single condition would be that the questions don't require tons of outside research to answer. More stuff that is directly linked to Bible references and stuff like that.
There are plenty of resources for contradictions/inconsistencies within the Bible, if that was the kind of thing you were looking for. For example, what did Jesus say, if anything, while on the cross, who discovered the empty tomb and what did they do with that revelation?
If you want challenging stories then I tend towards Numbers 16 where the Israelites are growing concerned with the leadership of Moses and Aaron and the people that have died under it (ie., the Korah incident) . The LORD Yahweh decides that the appropriate response to this leadership crisis was to execute 15,000 people in a slow horrible fashion.
It doesn't cause me to disbelieve in the God-entity, but it does lead me to reject him as a moral authority.