For feigned ignorance, the key question is not merely whether an interrogative appears, but what the speaker intends by asking about something already known.
Outward questionPurpose“What is in your right hand, Moses?”Directing attention and preparing the scene“Why are you leafy, trees of Khābūr?”Lament and wonder“Is it lightning?”Praise of beauty“Are the people of Ḥiṣn men or women?”Derisive criticism“Is Laylā among you, gazelles?”Praise of a beloved
Similar interrogative wording may serve different ends; context determines its interpretation.