Not sure if you are trolling OP or serious but you are on the right track by questioning the current dogma regarding this topic.
Did God lie? No.
Did the Serpent lie? Yes.
Here is what I believe... whether you care or not. I will post this for others to see at least.
Adam and Ishshah died completely and totally... as in they became worm food. The Church hides this from the average Christian because it reveals a Great Truth about what happens to the Unsaved.
Because the Church does not want folks to become enlightened, they have come up with a meaningless phrase called 'Spiritual Death' in hopes that the average person is ignorant enough to fall for it. Adam and Eve did not "die spiritually" (whatever that means). They experienced something the Bible calls the Second Death...
Revelation 21:8
"But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death."
In fact, the original Hebrew says they will 'die die'... as in they will be Twice Dead.
After they died, the rest of the story is about how Adam and his Wife experienced the Resurrection of the Damned, were judged and ultimately made to pass through the fire.
God then re-created them in the bodies we all have now. The key take-away here is that they were RE-CREATED.