Yes-no questions can be answered with a simple "yes" or "no" response. WH-questions ask about qualities, people, time, and place using question words like who, what, where, when, why, which, and how. These question words are used to ask specific types of questions - who is used to ask about people or things, what is used to ask about activities or objects, where and when ask about places and times, why asks for reasons, which asks about choices, and how asks about methods or characteristics.