You're not the first clever skeptic who thought he'd stumbled onto something new by cherry-picking verses, nor will you be the last.
Genesis 3:20 (Eve) Eve is called the "mother of all living" because from her line would come all humanity. Adam, created directly by God, is not part of her lineage; he is the first man, formed by God himself. Eve's title signifies that all humans afterward were born through her. Adam was formed directly from the dust of the earth by God’s own hand (Genesis 2:7). Eve, on the other hand, was genentically formed from Adam's side/rib (Genesis 2:21–22). Thus, Adam could never call Eve "mother," because she did not precede him; rather, she proceeded from him. This isn't a translation error; it's basic comprehension.
Ezekiel 14:9 (God deceiving prophets) If you actually read Ezekiel 14 in context, God allows deceptive prophets to persist as judgment against rebellious people who prefer lies over truth. God doesn't tempt anyone (James 1:13), but He can certainly use their own delusions to expose and judge their wickedness. You might find that harsh, but God doesn't need your approval.
2 John 1:9 (Doctrine of Christ) The doctrine of Christ is the full teaching about Christ—His incarnation, divinity, humanity, death, resurrection, ascension, and Lordship. It's not complicated, and it doesn't change based on whether you understand or like it.
1 John 1:8 (Sin and believers) Believers are born again spiritually but remain in fallen flesh, thus sin still happens. 1 John 1:8 plainly warns against denying one's sinfulness, even after regeneration. Salvation doesn't remove our fleshly weakness instantly; it gives us power through the Spirit to overcome it gradually.
John 1:1–2 (The Word with God and was God) The Word (Christ) was "with God" (distinct Personhood in the Trinity) and "was God" (sharing the same essence). The Trinity is core Christianity and it's been thoroughly explained for nearly two thousand years.