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Play this advanced general knowledge quiz online for free — 20 hard trivia questions on science, history and geography.
1. In which country did the martial art Judo originate?
💡 Judo was developed in Japan in 1882 by Jigoro Kano as a modern martial art and Olympic sport.
2. What is the hardest substance found naturally in the human body?
💡 Tooth enamel is the hardest substance in the human body, protecting teeth from wear and decay.
3. Which language has the most native speakers in the world?
💡 Mandarin Chinese has more native speakers than any other language, largely due to China's massive population.
4. What is the study of ancient human societies through artifacts called?
💡 Archaeology involves studying past human activity primarily through the recovery and analysis of physical artifacts.
5. What is the official currency used across most of the European Union?
💡 The Euro was introduced in 1999 and is used by most member states of the European Union.
6. Which English king signed the Magna Carta in 1215?
💡 King John signed the Magna Carta in 1215, limiting royal power and establishing key legal principles.
7. Which country was the first to send a human into space?
💡 The Soviet Union sent Yuri Gagarin into orbit in 1961, making him the first human in space.
8. What is the extremely dense object formed after a massive star collapses, from which not even light can escape?
💡 A black hole forms when a massive star collapses under its own gravity, creating a region where gravity is so strong nothing can escape, not even light.
9. What term describes a word that has the same meaning as another word?
💡 A synonym is a word that shares the same or a very similar meaning with another word.
10. What is the name of the deepest known point in Earth's oceans?
💡 The Mariana Trench in the Pacific Ocean reaches depths of nearly 11,000 meters, the deepest known point on Earth.
11. What is the process by which a cell divides into two identical daughter cells called?
💡 Mitosis is the process of cell division that produces two genetically identical daughter cells.
12. Which scientist formulated the three laws of planetary motion?
💡 Johannes Kepler developed his three laws of planetary motion in the early 17th century, based on observational data.
13. In which country did the game of chess likely originate?
💡 Chess is believed to have originated in India around the 6th century, later spreading to Persia and beyond.
14. Who is regarded as the founder of psychoanalysis?
💡 Sigmund Freud developed psychoanalysis in the late 19th and early 20th centuries, pioneering the study of the unconscious mind.
15. Which mountain is the tallest in Africa?
💡 Mount Kilimanjaro in Tanzania, at 5,895 meters, is the tallest mountain on the African continent.
16. Which conflict is also referred to as 'The War to End All Wars'?
💡 World War I earned the nickname 'The War to End All Wars' due to its unprecedented scale and devastation.
17. Which ancient civilization built the city of Machu Picchu?
💡 Machu Picchu was built by the Inca Empire in the 15th century, high in the Andes Mountains of Peru.
18. What is the imaginary line at 0 degrees longitude called?
💡 The Prime Meridian, passing through Greenwich, England, is the reference line for measuring longitude at 0 degrees.
19. Who is credited as the first computer programmer, having written an algorithm for Charles Babbage's Analytical Engine?
💡 Ada Lovelace wrote what is considered the first algorithm intended for a machine in the mid-19th century.
20. What is the term for an intense fear of heights?
💡 Acrophobia is the clinical term for an extreme or irrational fear of heights.