Normal does not mean "right" or "righteous."
Normal is average, regular. In a Fallen world, "normal" includes Sin.
This does not mean that the thoughts you mention are wicked, but they are affected by sinfulness.
Still, to mock what the Bible says is unwise at best. Therefore, you need to pray and seek God's counsel, get into the Word that is questioned, and go to different Christians and ask them about their struggle (like you are). But as you go to others, put God first and humble yourself, so that you do not just hear what you want to hear (whether for affirmation or debate).
Here is another idea, get around a spirit-filled person who loves teaching kids and who is clearly loved by the kids.
You will unmistakably be humbled by the lessons taught. It does not mean that it is perfect theology or a perfect lesson plan.
But at least you will be around those with child-like faith, children who love Jesus, or those who are curious to learn more.
Today, I heard a kid ask, "Then, can God see Himself?" The fourth grade child asked in reply to the teacher's comment, "God sees everything." This is precious to witness kids ask. It is innocent inquisitiveness, not sinful skepticism.
Okay, as for me. All of my life, there have been moments of questioning varying aspects of life and God and the Devil.
Even after reading certain verses hundreds of times, I still can ask Does it really mean ...? Now, my testifying to questioning Scriptural meaning does not mean that someone, then, should. It simply means, A) I am normal, in that I do not have all the answers B) I am normal, in that I question the answers I read in the Bible and C) I am normal, in that I am not omniscient, omnipresent, or omnipotent; thus, I am excused for not being perfect in every thought.
If one's motive is to disprove God or something in the Bible, he or she needs a change in motive and reality check from God.
No one needs to disprove, approve, prove, reprove, or improve the message of the Bible.
Sure, a Bible can be edited and updated; but God's messages, lessons, and love (seen best in the person of Jesus)-- those do not need to be questioned-- they need only to be accepted by faith and obeyed.
Some wise folks have pointed to Philippians 4:8 to combat "Stinkin' thinkin.'"
Even an honest motive can turn sour, if one does not stay disciplined in thought.