The document discusses indirect questions as a polite alternative to direct questions. Indirect questions have the same word order as statements and do not use "do" to form the question. They are preceded by polite requests like "Can you tell me..." or "Do you know..." asking for permission before posing the question. Indirect questions allow the person being questioned to choose whether to answer or not, making them more polite than direct questions when speaking to strangers or acquaintances. Examples are given of direct questions converted to indirect questions by adding a polite request before the question.