Top 20 websites to expand your general knowledge : 1. Wikipedia: A vast online encyclopedia covering various topics. 2. TED: Inspiring talks on science, technology, art, and more. 3. Coursera: Online courses from top universities worldwide. 4. Khan Academy: Free educational resources on subjects like math, science, and history. 5. National Geographic: Explore science, history, and culture through articles, videos, and photos. 6. BBC Knowledge: Articles, videos, and quizzes on science, history, and culture. 7. The Conversation: Academic insights on current events and topics. 8. Open Culture: Free online courses, e-books, and educational resources. 9. Big Think: Expert opinions and insights on various subjects. 10. Quora: Q&A platform covering diverse topics. 11. Crash Course: Educational videos on subjects like history, science, and literature. 12. Duolingo:...