Rhetorical question

A question asked without expecting an answer, because the answer is already implied, or because what matters is the doubt it exposes.

In The Master and Margarita

What does it mean to be an official or an unofficial representative? It all depends on the point of view from which you look at the object. All of it, Nikanor Ivanovich, is relative and unstable.

Korovyov asks "What does it mean to be an official or an unofficial representative?" and answers himself, expecting nothing from Nikanor. The question tries to dissolve the chairman's doubt and make convenience pass for relativism: everything is "relative and unstable," although in the moment it does not convince him.

Part One, Chapter 9: Korovyov's tricks, Korovyov

Wouldn't it be better to throw a party with these twenty-seven thousand and, after taking poison, pass into the other world to the sound of strings, surrounded by beautiful drunken women and cheerful friends?

Part One, Chapter 18: The unlucky visitors, Woland

Who told you that there is no true, faithful, eternal love in the world? Then cut out the tongue of that infamous liar!

Part Two, Chapter 19: Margarita, The narrator

what would your goodness do if evil did not exist, what would the earth be like if its shadows vanished

Part Two, Chapter 29: The fate of the Master and Margarita is decided, Woland