One of the most logic mu’jizat (miracle) of the Qur’an is q.s. Al Lahab 1-5.
When abu lahab known that he was mentioned in the Qur’an as the people who will go to hell, he just laugh about it. He even said that when he convert to islam, will this ayat Qur’an deleted by Allah and will He let him enter jannah? If Allah delete the ayat, then it means that Allah didnt know anything about people heart, the Qur’an then becomes untrusted.
In the end, abu lahab still not convert to islam. Although its very easy for him to pretend accepting islam to prove that Quran is wrong, but he didnt.