Questions can be categorized into several types based on their purpose and structure. Closed questions require a simple yes or no answer, making them straightforward and easy to analyze. In contrast, open questions encourage more detailed responses, allowing for deeper insights and discussions. Another type is rhetorical questions, which are asked for effect rather than to elicit an answer. Leading questions suggest a particular response, often guiding the respondent toward a specific viewpoint. Understanding these types helps in effective communication and gathering information.