1) The Quran is not a story book.There are no stories in it. Just certain instructions that guide people that the creator of this universe is not comparable to any element existing in this world...and hence God cannot be represented in idols/images. 2)The Quran is the only book which still exists in its true form. It does not have a *single* update since it was first written. 3) It is humanly impossible to write the Quran.