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40 challenging general knowledge questions for true quiz masters.
1. Which empire was the largest in history by land area?
💡 The British Empire covered about 24% of Earth's total land area at its peak in 1920.
2. What is the only country in the world with a non-rectangular flag?
💡 Nepal is the only country with a non-rectangular national flag — it has a double pennon shape.
3. How many elements are on the periodic table?
💡 The periodic table has 118 confirmed elements. Elements 1-94 occur naturally on Earth.
4. What is the most venomous snake in the world?
💡 The Inland Taipan has the most toxic venom of any snake — one bite contains enough venom to kill 100 adults.
5. What is the rarest blood type in the world?
💡 AB negative is the rarest blood type found in less than 1% of the world's population.
6. In which year was the United Nations founded?
💡 The United Nations was founded on October 24 1945 after World War II with 51 member states.
7. Which philosopher wrote The Republic?
💡 Plato wrote The Republic around 375 BC exploring justice, politics, and the ideal state.
8. What is the half-life of Carbon-14 used in radiocarbon dating?
💡 Carbon-14 has a half-life of 5730 years. Scientists use this to date organic materials up to 50000 years old.
9. What is the name of the deepest lake in the world?
💡 Lake Baikal in Siberia is 1642 meters deep — the world's deepest lake containing 20% of Earth's fresh surface water.
10. What is the chemical symbol for Tungsten?
💡 Tungsten's symbol W comes from the German word Wolfram. It has the highest melting point of all metals at 3422°C.