A Knowledge Engine is a system designed to gather, organize, and provide information in a way that is easily accessible and understandable. It uses advanced algorithms and data processing techniques to analyze vast amounts of information from various sources, such as the internet, databases, and user-generated content. This allows users to find relevant answers quickly and efficiently. These engines often incorporate elements of artificial intelligence, such as natural language processing, to improve user interaction. Examples of Knowledge Engines include platforms like Wolfram Alpha and Google Knowledge Graph, which help users retrieve factual information and insights on a wide range of topics.