[Rami*]

Yes I believe in the existence of God for Logical reasons,
Mental standards in proving the existence of God: We all know that being is against the non-existence, If one of those two proved the other one is incorrect. Now we ask ourselves what is the origin, whether it is non-existence or existence of God? Let us assume that the absence of God is the origin? The definition of non-existence is not the existence of life and all the things that surround us so, how could the nothing make something?!! now we believe the presence of god.
These cosmic thing surrounding us, which we are a part, was not originally exist, and requires its presence a Creator.
for simple example:We all know the famous book of Ibn Battuta, and we know who wrote this book, but we never see him, we know that he was their because of his book, so the same thing with "Qura'an" the god book it's must have a creator of it and that is god.
And talking about this subject it'll be very long and has many Logical causes.

sources: Islamic faith and its foundations. website:شبكة التربية الاسلامية الشاملة