HOW?
Sorceress Edea is not the answer because I already explained it.
What do you mean how? They just give away their powers, then carry on living.

As for Edea, your case is very weak. The two possible theories as to why Edea didn't die after giving up her powers are, 1) a sorceress doesn't have to die after giving up powers, or 2) Edea didn't give up all her powers.

Theory 2 requires that Edea specifically lies to us when she says she is no longer a sorceress, ie. that Square deliberately put in misleading information which serves no purpose to the plot at all (as Edea's powers are never in the centre of things again later). Considering that nothing actually speaks against theory 1, clearly it is by far the strongest theory.

Of course that is something wrong.Because there`s only one way to give away sorceress power the prize is dead.(i.e Sorceress Adel dead after she give away her power to Rinoa)
The reason Sorceress Edea is not dead because it`s Ultimecia`s power that get away from her, not her sorceress power.
Sorceress Adel gave up her powers before dying because she had been killed by Squall and Co, and as the game states, a sorceress needs to rid herself of her powers in order to die. But this in no way implies the opposite (giving up powers means death), as commented on above.

The fact is that for your idea to work, you need to assume Edea is lying/not telling the truth. This is a purely baseless assumption, hence the theory is not valid.

Because that simple knowledge can explain everything.
And how is that?

Like I said it`s Square`s intention to make us believe that Edea is not a sorceress anymore.
(you still not answer this question yet.)
I want to say this once more : There`s FLAWS in the game.I'm sure everyone realised that.
It isn't a question to be answered. Unless you get an official confirmation from Square that they were deliberately trying to mislead us, then fine, but until then your claim is ludicrous.

And yes, there ARE flaws in the game (eg. time compression fails to fully make sense when scrutinised) but those flaws are generally obvious to see, and can't really be seen as anything but a flaw. But what exactly is your point?

You misunderstood me.I mean JME does exist,I only say that JME doesnt work that`s all,Got that?
JME that Odine talking about is only his ASSUMPTION about how Ultimecia possessed the other sorceress.
And considering that Odine's assumptions were made up by Square, he carries far more weight than you do. Hence unless you show why we shouldn't believe his 'assumption', it can be considered canon.

This is not an answer.It is only your believe,no?
Tell me then, do you really believe that a sorceress who can compress time itself, and absorb the entire universe, as well as brining statues to life, manifest GF's out of thin air and read people's minds would really have a problem with possessing someone?

People cant felt TC because TC is not completed yet.
Squall and Co feel TC yet TC isn't finished then either...

Of course people would just go "She's not evil anymore?"
Squall will prove that Edea is kind hearted and all.Squall will give Edea's history, that she's is Kind Matron,she build orphanage for orphans.
This is evidence to show to the world that Edea basically Good sorceress before she's possessed by Evil sorceress.
From the beginning of history human already hostile to sorceresses.
If you take a look at human history (eg. witch hunts) I think you'll find people are usually a bit less merciful than what you think.

However, let's say they believe the story about Edea. That however leaves the question as to who the sorceress who possessed her was. Unless a good identity is given, people are in no way going to buy into the story that she was just possessed. It's like; "Don't worry, she's not evil, she was just possessed!". "By who?!". "Oh, no one...".

No one would buy into that. Eventually Ultimecia would have to be revealed. Whatever happens, sorceresses would be loathed by the public even more than before.

There`s indication, in that Final Battle you can attack 2 Ultimecia.That`s the indication,no?
Come on, did you not read what I said? The fact that there are 2 targets in Ultimecia's final form has a perfectly good alternate explanation which I shared in my last post.

How can we accept everything the game tells us,if there`s FLAWS in the game.
It's not good enough to say that there are flaws in the game. You have to specifically point out flaws which cannot be seen as anything but flaws, and then show how those flaws support your theory.