أَيْنَ الْمُعَلِّمُ؟
Where is the teacher?
For a speaker who genuinely lacks the information, this is an ordinary request for a location. In a scene where the listener clearly knows the answer, the same interrogative shape may—given an appropriate tone and context—reproach an omission or direct attention to an obvious fact.
The interrogative form alone never establishes its rhetorical force. The analysis must determine whether the speaker is asking for unknown information or using a question for a communicative effect.