I don't think there is much about the Bible that is simple unfortunately. And people who do tend to get everything wrong IMO. Rapture believers being the most obvious.
Discussion
Simple for me.
So you think a man really lived in the belly of a whale? All animals really marched 2 by 2 onto a giant boat?
Do you think Jesus is going to come down out of heaven & take people away from the earth in some sort of magical end times event?
Can you define the word "sin" ? Or "love" ?
There are thousands of cartoonish story elements that can either be deep & meaningful (if you are willing to think & do the work necessary to understand them), or they can be completely flat & silly if you take them literally.
Pi is 3, as the Good Lord teaches
https://www.biblegateway.com/passage/?search=1+Kings+7:23&version=KJV
I believe in the great flood because Jesus referenced it. It is up to you if you take the Bible literally or not in those cases. Some people do, some don't. Don't let my belief shape yours if it bothers you.