Rational Argumentation with Disbelievers

قُل لِّمَنِ ٱلْأَرْضُ وَمَن فِيهَآ إِن كُنتُمْ تَعْلَمُونَ

Say, [O Muḥammad], "To whom belongs the earth and whoever is in it, if you should know?"

قُلْ أَرَءَيْتُمْ إِن جَعَلَ ٱللَّهُ عَلَيْكُمُ ٱلنَّهَارَ سَرْمَدًا إِلَىٰ يَوْمِ ٱلْقِيَـٰمَةِ مَنْ إِلَـٰهٌ غَيْرُ ٱللَّهِ يَأْتِيكُم بِلَيْلٍ تَسْكُنُونَ فِيهِ ۖ أَفَلَا تُبْصِرُونَ

Say, "Have you considered: if Allāh should make for you the day continuous until the Day of Resurrection, what deity other than Allāh could bring you a night in which you may rest? Then will you not see?"