an Example of people who Deny holy Quran they said :

1-By that logic comic books should be taken as proof of mutants and aliens and mismanagement at Wayne Enterprises.

Works of fiction are just that. Some are more convincing than others, sure, but they are written for entertainment, instructive, or political purposes.

Believe what you want, but don’t pretend your myths are more valid than anyone else’s.

2-Its just like saying, Isn't the marvel comic enough to prove the existence of Spiderman, Ironman, hulk etc.

There are no proof to the references in Quaran that says the god exists. Moreover, it is always believed the other way.. “God must be existing because Quaran says so.” It applies to many other religions as well.

Everyone has the freedom to follow his own religion. Most of the religions convey the same message. Peace, love, respect etc.

But that doesn't mean it can prove the existence of god.

another have opposite opinion he said:

Rather than answer the question I’ll respond to the surprising number of people who feel the need to give a “no” answer to this question who are using flawed logic and exposing their own lack of understanding of the Quran. They answer the question intending to mock the Quran by asking what they suppose is a related question that will presumably exposes the Quran as no evidence for God.

The mocking question they will ask is along the lines of; “Isn’t book “x” enough evidence for the existence of fictional character “y”? (Substitute your favourite book and character, or superhero, or hobbit, or whatever). The problem with this logic is that none of those books claim to be true. The authors are deliberately creating books of fiction and the readers of those books have no illusions of those books and the characters in them being anything other than total fiction.

In contrast, the author of the Quran claims without irony and with complete certainty that he is offering nothing but the word of God as heard through the angel Gabriel.

So suggesting that Spider-Man, or a Hobbit, or a Cyclopse has any parallels to the God of the Quran is sloppy thinking if not utter nonsense. It is also betrays a lack of respect for something you happen to not believe in.

Put simply; If you believe in the premise that the Quran was written down by a man and contains nothing but the revealed word of God, then of course the Quran is sufficient evidence for the existence of God. But I f you reject the premise, then the Quran provides no evidence whatsoever. The problem with the question is that the questioner, who obviously believes the premise, assumes that everyone else accepts the premise as true. It turns out most other people on the face of the globe don't and for them the Quran offers no evidence for God’s existence.

Footnote: The Bible is not a parallel to the Quran as some try to suggest. The Bible was written by some 40 authors spanning thousands of years from several different cultures and in at least three different languages employing several very different styles of literature. Some books of the Bible make no references to God whatsoever. In the four Gospels which sit at the core of the Christian Bible, the authors state outright that they are writing in their own words about the historical Jesus. The Quran may be unique in its claim of a revelatory transcript of the word of God in a single language at a single point in time to a single author whose only job was to document what God said word-for-word.

In contrast, the author of the Quran claims without irony and with complete certainty that he is offering nothing but the word of God as heard through the angel Gabriel.