Final answer:
Open-ended questions are those that cannot be answered with a simple yes or no and require a detailed response.
Step-by-step explanation:
Questions that cannot be answered with a simple yes or no and begin with the words Who? What? When? How? Why? are often open-ended questions. These types of questions require a more detailed and thoughtful response. They cannot be answered with a single word or a brief explanation. Instead, they require the person answering to provide information, examples, and evidence to support their response. Open-ended questions are commonly used in English classes to encourage critical thinking and analysis.