Closed questions are inquiries that can be answered with a simple "yes" or "no," or with a specific piece of information. They are designed to limit the response options, making it easier to gather clear and concise data. For example, asking, "Do you like ice cream?" requires a straightforward answer, which can be useful in surveys or interviews. These types of questions are often used in research and assessments because they provide quantifiable results. They can help in making decisions or understanding preferences quickly. However, closed questions may not allow for deeper insights, as they do not encourage elaboration or discussion.