A question asked without expecting an answer, either because the answer is already implied or because what matters is the doubt it exposes.
In the Odyssey
alas, what land of mortals have I reached again? Will they be proud, savage, and without justice, or hospitable, with minds that fear the gods?
Odysseus asks what land of mortals he has reached, but he is alone and expects no answer: the question exposes the doubt of one who arrives naked in an unknown place and must guess whether he will be welcomed.
for drinking wine; death was not in his mind. Who would imagine that a single man among so many guests, however strong he was, would bring on him an evil death and black doom?
Book XXII: The slaughter of the suitors, the narrator
Subscription
The explanation of each passage, in every device and in every work, comes with a subscription.