The Quran exposes itself as a fraud in Quran 33:50-53,

"O Prophet! Lo! We have made lawful unto thee thy wives unto whom thou hast paid their dowries, and those whom thy right hand possesseth of those whom Allah hath given thee as spoils of war, and the daughters of thine uncle on the father's side and the daughters of thine aunts on the father's side, and the daughters of thine uncle on the mother's side and the daughters of thine aunts on the mother's side who emigrated with thee, and a believing woman if she give herself unto the Prophet and the Prophet desire to ask her in marriage - a privilege for thee only, not for the (rest of) believers - We are Aware of that which We enjoined upon them concerning their wives and those whom their right hands possess - that thou mayst be free from blame, for Allah is ever Forgiving, Merciful."
"Thou canst defer whom thou wilt of them and receive unto thee whom thou wilt, and whomsoever thou desirest of those whom thou hast set aside (temporarily), it is no sin for thee (to receive her again); that is better; that they may be comforted and not grieve, and may all be pleased with what thou givest them. Allah knoweth what is in your hearts (O men), and Allah is ever Forgiving, Clement."
"It is not allowed thee to take (other) women henceforth, nor that thou shouldst change them for other wives even though their beauty pleased thee, save those whom thy right hand possesseth. And Allah is ever Watcher over all things."
"O Ye who believe! Enter not the dwellings of the Prophet for a meal without waiting for the proper time, unless permission be granted you. But if ye are invited, enter, and, when your meal is ended, then disperse. Linger not for conversation. Lo! that would cause annoyance to the Prophet, and he would be shy of (asking) you (to go); but Allah is not shy of the truth. And when ye ask of them (the wives of the Prophet) anything, ask it of them from behind a curtain. That is purer for your hearts and for their hearts. And it is not for you to cause annoyance to the messenger of Allah, nor that ye should ever marry his wives after him. Lo! that in Allah's sight would be an enormity."

In verse 50, Muhammad give himself only to have unlimited wives even though he previously said that the limit for number of wives for everyone would be 4. He also gives himself only the right to break the law against incest.

In verse 53, Muhammad gives a law for others to not linger at Muhammad's house too long, even though such a thing should never need to be a revelation from God. One could always just tell visitord they have been there long enough.

The Quran exposes itself as a fraud in Quran 25:4-5,

"Those who disbelieve say: This is naught but a lie that he hath invented, and other folk have helped him with it, so that they have produced a slander and a lie."
"And they say: Fables of the men of old which he hath had written down so that they are dictated to him morn and evening."

Why would one need to report what others were accusing Muhammad of lying, and then commenting on that?  If Muhammad's claims were provabe, just submit the proof, which he never does by the way.

The Quran exposes itself as a fraud in Quran 5:101-102

"O ye who believe! Ask not of things which, if they were made unto you, would trouble you; but if ye ask of them when the Qur'an is being revealed, they will be made known unto you. Allah pardoneth this, for Allah is Forgiving, Clement."
"A folk before you asked (for such disclosures) and then disbelieved therein."

Here Muhammad has to tell others not to question the Quran because others questioned and became disbelievers in the Quran.

The Quran exposes itself as a fraud in Quran 16:43-44

"And We sent not (as Our messengers) before thee other than men whom We inspired - Ask the followers of the Remembrance if ye know not!"
"With clear proofs and writings; and We have revealed unto thee the Remembrance that thou mayst explain to mankind that which hath been revealed for them, and that haply they may reflect."

Here it is claimed that those prophets that came before Muhammad were indeed inspired of God, and Muhammad should ask the followers of those prophets if he soes not know something. The clear proofs are in these writings that came Before Muhammad.

The Torah and Injeel as preserved in the Old and New Testaments contain clear proofs, testimonials, eyewitness accounts.  The Quran contains no proof, eyewitness, or experiences that God spoke the words written in it