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 chocolate?" requires a straightforward answer, which helps in quickly assessing opinions or facts. These types of questions are commonly used in surveys, interviews, and research to obtain quantifiable results. They can help streamline conversations and focus on specific details, making them useful in various fields, including market research and education.