This document discusses two types of questions in English: "Wh" questions and "Yes-No" questions. "Wh" questions begin with interrogative words like what, when, where, who, why and how to elicit more detailed answers. Examples of proper "Wh" questions are provided. "Yes-No" questions can be answered with a simple "yes" or "no" and do not begin with an interrogative word. Examples of proper "Yes-No" questions are also given. The document is intended to explain the differences between these two common types of questions in English.