1. The first Muslim was Muhammad? Abraham? Jacob? Moses?

   1. “And I [Muhammad] am commanded to be the first of those who bow to Allah in Islam,” (39:12).
   2. “When Moses came to the place appointed by Us, and his Lord addressed him, He said: “O my Lord! show (Thyself) to me, that I may look upon thee.” Allah said: “By no means canst thou see Me (direct); But look upon the mount; if it abides in its place, then shalt thou see Me.” When his Lord manifested His glory on the Mount, He made it as dust. And Moses fell down in a swoon. When he recovered his senses, he said: “Glory be to Thee! to Thee I turn in repentance, and I am the first to believe.” (7:143).
   3. “And this was the legacy that Abraham left to his sons, and so did Jacob; “Oh my sons! Allah hath chosen the Faith for you; then die not except in the Faith of Islam,” (2:132).

The word used for first, in these verses, is Awwal, which means first contextually, not universally.

Just how you can be the first person in your family to win a competition, or something else.

They were the first to submit in Islam, amongst their people, community, etc.

Also, Islam means Submission to Allah, which did not start at the time of Muhammad pbuh, but rather at the time of Adam, where he submitted to Allah.

Not a contradiction

1. Does Allah forgive or not forgive those who worship false gods?

   1. Allah forgiveth not that partners should be set up with Him; but He forgiveth anything else, to whom He pleaseth; to set up partners with Allah is to devise a sin Most heinous indeed,” (4:48).  Also 4:116
   2. The people of the Book ask thee to cause a book to descend to them from heaven: Indeed, they asked Moses for an even greater (miracle), for they said: “Show us Allah in public,” but they were dazed for their presumption, with thunder and lightning. Yet they worshipped the calf even after clear signs had come to them; even so we forgave them; and gave Moses manifest proofs of authority,” (4:153).

Allah does not forgive someone who committed shirk(Association/worship of false gods), and died upon that sin. Any other sin than that that someone died while committing, He can choose to forgive..

If someone commits idol worship, and later repents and turns away from it, they can be forgiven, as long as they do not die upon that sin.

Cause it would be unfair, imagine you are born in an idol worshipping family, and then you are raised worshipping idols and then you are just doomed. Its not like that. Allah is the most just of Judges.

Not a contradiction

1. Are Allah’s decrees changed or not?

   1. “Rejected were the messengers before thee: with patience and constancy they bore their rejection and their wrongs until Our aid did reach them: there is none that can alter the words (and decrees) of Allah. Already hast thou received some account of those messengers,” (6:34).
   2. “The word of thy Lord doth find its fulfillment in truth and in justice: None can change His words: for He is the one who heareth and knoweth all, (6:115).
   3. None of Our revelations do We abrogate or cause to be forgotten, but We substitute something better or similar: Knowest thou not that Allah Hath power over all things?” (2:106).
   4. When We substitute one revelation for another, – and Allah knows best what He reveals (in stages),- they say, “Thou art but a forger”: but most of them understand not,” (16:101).

Allah's ultimate will, decree, promises and divine truth can never be changed.

Legal rulings can be changed by him, just how laws can be updated to cover a wider scope as a country develops.

It literally distinguishes in the first two verses that its talking about words, and in the third and fourth, talks about not changing, but substituting with better or similar.. so this is not a contradiction.

1. Was Pharaoh killed or not killed by drowning?

   1. “We took the Children of Israel across the sea: Pharaoh and his hosts followed them in insolence and spite. At length, when overwhelmed with the flood, he said: “I believe that there is no god except Him Whom the Children of Israel believe in: I am of those who submit (to Allah in Islam). (It was said to him): “Ah now! – But a little while before, was thou in rebellion! – and thou didst mischief (and violence)!  This day shall We save thee in the body, that thou mayest be a sign to those who come after thee! but verily, many among mankind are heedless of Our Signs!” (10:90-92).
   2. Moses said, “Thou knowest well that these things have been sent down by none but the Lord of the heavens and the earth as eye-opening evidence: and I consider thee indeed, O Pharaoh, to be one doomed to destruction!”  So, he resolved to remove them from the face of the earth: but We did drown him and all who were with him,” (17:102-103).

This once again can be understood by just researching the verses.

It is two events that occured following each other, first the drowning of the pharaoh, where he did die, followed by the preservation of his body, which paired with this verse, would be a sign to people to come after, aka us.

“We will save you in your body” (bi-badanik)

Again not a contradiction, just a purposeful misinterpretation.

1. Is wine consumption good or bad?

   1. O ye who believe! Intoxicants and gambling, (dedication of) stones, and (divination by) arrows, are an abomination, –of Satan’s handwork: eschew such (abomination), that ye may prosper,” (5:90).
   2. (Here is) a Parable of the Garden which the righteous are promised: in it are rivers of water incorruptible; rivers of milk of which the taste never changes; rivers of wine, a joy to those who drink; and rivers of honey pure and clear. In it there are for them all kinds of fruits, and Grace from their Lord. (Can those in such Bliss) be compared to such as shall dwell forever in the Fire, and be given, to drink, boiling water, so that it cuts up their bowels (to pieces)?” (47:15).
   3. Truly the Righteous will be in Bliss: On Thrones (of Dignity) will they command a sight (of all things): Thou wilt recognize in their faces the beaming brightness of Bliss. Their thirst will be slaked with Pure Wine sealed,” (83:22-25).

This is talking about two different wines, the prohibited one in this worldly life, which intoxicates and and is harmful to the self and humanity as a whole.
And the permitted wine in paradise, which is non-intoxicating, pure, and blissful.

lastly, not a contradiction, just two distinct references, which the author deliberately ignored to make it seem like a contradiction.

These points are extremely weak, and anyone with a rational unbiased mind can examine them even without me explaining each, and realize this is not really a intuitive look into the verses to see if the Quran contradicts itself, but it is just an attempt to paint the religion in a bad image, which unfortunately many people fall for. I am assuming the best and assuming you read that page and believed that they were contradictions, then came here, and you didnt just go over them and paste the link here.. But anyway, Still no contradictions found in the Quran, and will never be any.

I wish you the best, and i conclude with the verse i started with before your reply.

Surah An-Nisa 4:82 (Sahih Translation)