sorry Sassan , but this is incorrect. Agnostics are actually Atheists. If you don't answer 'yes' to the question 'Do you believe in a God or Gods' , then you are an Atheist.
Atheism doesn't mean you are 100% certain.
Saying we do not know does not mean we believe in ghosts or reincarnation.
If you are an atheist by saying that, "presented with all the facts and evidence I do believe in god or gods at this point in time" and you further qualify by saying "you simple do not have all the answers" this does not mean you are not an atheist. This is not the same thing as saying I may or may not believe in god or gods, then yes, you are not an atheist but a pure agnostic.
Believing in things like spirits, energy, astrology, bigfoot, alien abductions, endless conspiracy theories and supernatural claims means you are not much of a skeptic, but in no way does it prevent you from lacking belief in a god. If you disagree with that, then you don't understand the definition of atheism or the difference between skepticism, atheism, and agnosticism as several others have now pointed out to you. You don't seem to be listening.
Some people come to atheism for emotional reasons, or lose their belief in god before losing belief in other claims that are not based on evidence. If this is the case, at least they have their foot out of the door and are on the way to skepticism and rational thinking. Theists play the no true Scotsman game. I refuse to. It's better to help them along on their journey instead of arguing over whether or not they're a "real atheist".
When you are talking about the unknowable the possibility of it is rational but not probable, to allow for that position is rational.