وَمَا تِلْكَ بِيَمِينِكَ يَا مُوسَىٰ
And what is that in your right hand, O Moses?
A question need not signal ignorance; it can create attentiveness, affirmation, and a purposeful exchange. In other contexts feigned questioning may serve wonder, praise, criticism, or lament.
An interrogative form alone does not prove the device; context and the speaker’s knowledge matter.