World Knowledge Challenge
Test your knowledge across science, history, geography, and culture with this engaging general knowledge quiz.
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15 questions · Quick play · Instant results
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Quiz Questions & Answers
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Question 1: Which gas makes up the majority of Earth's atmosphere?
Oxygen
Carbon Dioxide
Nitrogen
Argon
Question 2: Which ancient wonder of the world still exists today?
Colossus of Rhodes
Great Pyramid of Giza
Hanging Gardens of Babylon
Lighthouse of Alexandria
Question 3: What is the smallest bone in the human body?
Stapes
Femur
Coccyx
Phalange
Question 4: Which ocean is the deepest?
Atlantic Ocean
Indian Ocean
Pacific Ocean
Arctic Ocean
Question 5: What is the hardest natural substance on Earth?
Gold
Iron
Platinum
Diamond
Question 6: Which planet has the most moons in our solar system?
Saturn
Jupiter
Uranus
Neptune
Question 7: What is the most widely spoken language in the world by total number of speakers?
Spanish
English
Mandarin Chinese
Hindi
Question 8: Which element has the chemical symbol 'Fe'?
Fluorine
Iron
Francium
Fermium
Question 9: What is the capital city of Australia?
Sydney
Melbourne
Canberra
Perth
Question 10: Who painted the Sistine Chapel ceiling?
Leonardo da Vinci
Michelangelo
Raphael
Botticelli
Question 11: What is the speed of light in a vacuum?
299,792 kilometers per second
199,792 kilometers per second
399,792 kilometers per second
249,792 kilometers per second
Question 12: Which country invented paper?
Egypt
China
Greece
India
Question 13: What is the largest organ in the human body?
Heart
Liver
Skin
Brain
Question 14: Which continent is the driest on Earth?
Africa
Antarctica
Australia
Asia
Question 15: What is the most abundant element in the universe?
Helium
Oxygen
Carbon
Hydrogen