#You will find pages on Internet trying to refute especially "1000+ Mistakes in the Quran". Please read them, but check their claims, information and "information" - laugh at their mistakes and naivety, be stupefied at the lack of real knowledge, weep at the dishonesty (Islam is the only of the big religions which not only accepts, but often advises the use of dishonesty - al-Taqiyya, Kitman, deceit and even broken words/oaths (see separate chapters in "1000+ Mistakes in the Quran) - to promote or defend "the Religion of Truth" (quite an ironic slogan for a religion partly relying on dishonesty)).
As for "1000+ Mistakes in the Quran" and all the mistakes, contradictions, cases of invalid logic and of unclear language, etc. in that book: One or a few mistakes, etc. could be accepted even from an omniscient god, as the ones writing it down might have made errors (the Quran is claimed sent down by Allah, but necessarily copied by humans). But to be able to believe such a god have such a bad command of the language, that humans have to explain away mistakes, etc. with "what he really meant" or "parable", etc. hundreds of times and more + hundreds of contradictions and cases of invalid logic and of unclear language, etc., takes a blindness, naivety or wishful thinking far beyond the incredible and deep into the unbelievable.
Another fact about the language: Muslims like to boast of how elegant Arab is used in the Quran - they even claim it is so elegant that it must be made by the god! (There exists no proofs for Allah, and they try to find such ones wherever there is a possibility.) And thank you very much for a nice language - it was polished for some 250 years (from ca. 650 AD to ca. 900 AD) by some of the best brains Islam had. But the elegance of the language just is the wrapping - it does not help very much with an elegant and exquisite wrapping paper, if the contents are low quality and/or invalid. (A holy book clearly not backed by a god, is invalid as a basis for a true religion. Such a book at best is a collection of legends or fairy tales and a basis for superstition - and for power for the leaders - or at worst a tool for dark forces.)