A question which does not require an answer is called a rhetorical question. It is asked to make a point, create an effect or emphasize a statement rather than to elicit an answer. Rhetorical questions are commonly used in speeches, literature, and everyday conversations to grab attention, engage the audience, or convey a message indirectly. For example, "Who doesn't want to be happy?" or "Do you think I'm stupid?" are rhetorical questions that do not require a direct answer but convey a strong message or opinion.