مَنْ ذَا الَّذِي يَشْفَعُ عِنْدَهُ إِلَّا بِإِذْنِهِ
Who can intercede with Him except by His permission? (al-Baqarah 2:255)
Here interrogation contributes to magnification (taʿẓīm), making divine authority and supremacy clear; it does not seek the identity of an unknown intercessor.
أَهَذَا الَّذِي مَدَحْتَهُ كَثِيرًا؟
Is this the person whom you praised so much?
In a contemptuous context, when the subject proves unworthy of the praise, the question expresses disparagement (taḥqīr).
أَعَقْلُكَ يُسَوِّغُ لَكَ أَنْ تَفْعَلَ كَذَا؟
Does your reason really permit you to do such a thing?
If it ridicules the addressee's unreasonable conduct, it functions as mockery (tahakkum). Disparagement lowers the subject's worth; mockery uses irony or scorn to expose the absurdity of a stance.