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General Knowledge

Test your everyday smarts
General Knowledge is the catch-all where curiosity refuses to stay inside a category — language, food, art, cinema, technology, the small mysteries of everyday objects. Why are stop signs octagonal? How did the QWERTY keyboard win? Which book has been translated more than any other? Every article here is built around one such question, and the full piece explains the surprisingly-deep answer underneath. We avoid trivia for trivia's sake: each entry connects the dot to something bigger — a design decision, a cultural shift, a piece of forgotten history. If you ever wanted to know how the small details of the world ended up the way they did, this is the category that explains them, one quiz question at a time.
Why do we have leap years?
We have leap years to keep our calendar synchronized with Earth's actual orbit around the Sun, which takes slightly longer than 365 days.
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What is the most spoken language in the world?
English is the most spoken language in the world when you include both native and non-native speakers, with over 1.5 billion people using it globally.
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Why is the sky blue?
The sky appears blue because the molecules in Earth's atmosphere scatter blue light from the Sun more than they scatter other colors.
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What makes a diamond so valuable?
Diamonds are valuable because of a combination of their natural beauty, their actual rarity in gem-quality form, and one of the most successful marketing campaigns in history.
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How does the human brain store memories?
The human brain stores memories by forming and strengthening electrical and chemical connections between billions of nerve cells called neurons.
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