What is the largest planet in our solar system?
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Answer
Jupiter
It is so massive that it is more than twice as heavy as all the other planets in the solar system combined.
Who painted the ceiling of the Sistine Chapel?
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Answer
Michelangelo
He painted it between 1508 and 1512, at the commission of Pope Julius II.
What is the largest and deepest ocean on Earth?
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Answer
Pacific Ocean
It covers about a third of Earth's surface — more than all the planet's land combined — and holds the deepest known point, the Mariana Trench.
What is the chemical symbol for gold?
Answer
Au
It comes from the Latin word for gold, aurum, meaning "shining dawn" or "glow of sunrise."
In what year did the Berlin Wall fall?
Answer
1989
It was opened on the night of November 9, 1989; formal German reunification followed in October 1990.
What is the capital of Australia?
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Answer
Canberra
Not Sydney — Canberra was purpose-built as a compromise between the rival cities of Sydney and Melbourne, becoming the seat of government in 1927.
How many hearts does an octopus have?
Answer
Three
Two pump blood to the gills, while the third circulates it to the rest of the body.
Who was the first person to walk on the Moon?
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Answer
Neil Armstrong
He stepped onto the lunar surface on July 20, 1969, during NASA's Apollo 11 mission.
Which language has the most native speakers in the world?
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Answer
Mandarin Chinese
It has the most first-language speakers of any language — roughly 900 million to 1 billion people, mostly in China.
What is the hardest known naturally occurring material on Earth?
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Answer
Diamond
It scores 10 — the maximum — on the Mohs scale of mineral hardness, thanks to its rigid lattice of carbon atoms.
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