The document discusses direct and indirect questions in English. Direct questions are questions asked directly without an introductory phrase, using question words like what, when, where, etc. Indirect questions are questions asked more politely using introductory phrases like "Do you know...", "I was wondering...", etc. followed by a clause rather than a direct question. Indirect questions are used to ask for information or ask personal questions in a polite way. Examples of both direct and indirect questions are provided.