50 General Knowledge Quiz Questions & Answers

Below are 50 general knowledge quiz questions with the correct answer and a short explanation for each. Use them to revise, host a quiz night, or prepare for competitions — then challenge yourself with the timed, interactive version on QuizOxa.

General Knowledge Quiz Questions and Answers

Q1. How many colors in a rainbow?

✅ Answer: 7

💡 7 colors: Red, Orange, Yellow, Green, Blue, Indigo, Violet (ROY G BIV).

Q2. What is the hardest natural substance on Earth?

✅ Answer: Diamond

💡 Diamond rates 10 on the Mohs scale, the hardest natural material.

Q3. How many continents on Earth?

✅ Answer: 7

💡 7 continents: Africa, Antarctica, Asia, Australia, Europe, North America, South America.

Q4. Language with most native speakers?

✅ Answer: Mandarin Chinese

💡 Mandarin Chinese has approximately 920 million native speakers.

Q5. How many sides does a hexagon have?

✅ Answer: 6

💡 A hexagon has 6 sides. 'Hex' means 6 in Greek.

Q6. Largest planet in our solar system?

✅ Answer: Jupiter

💡 Jupiter's mass exceeds all other planets combined.

Q7. Year the first iPhone launched?

✅ Answer: 2007

💡 Steve Jobs unveiled the first iPhone on January 9, 2007.

Q8. Hours in a week?

✅ Answer: 168

💡 7 days × 24 hours = 168 hours per week.

Q9. What do bees produce?

✅ Answer: Honey and Wax

💡 Bees produce both honey (from nectar) and beeswax for their hive.

Q10. How many teeth does an adult human have?

✅ Answer: 32

💡 Adults have 32 teeth total, 28 without wisdom teeth.

Q11. Which animal is the tallest in the world?

✅ Answer: Giraffe

💡 Giraffes are the tallest animals, reaching heights of up to 6 metres.

Q12. How many strings does a standard guitar have?

✅ Answer: 6

💡 A standard guitar has 6 strings.

Q13. What was the first artificial satellite?

✅ Answer: Sputnik 1

💡 Sputnik 1, launched by the Soviet Union on October 4, 1957, was the first artificial satellite.

Q14. Which gas makes fizzy drinks fizzy?

✅ Answer: Carbon Dioxide

💡 Carbon dioxide (CO2) is dissolved under pressure to create fizzy drinks.

Q15. What is the largest mammal on Earth?

✅ Answer: Blue Whale

💡 The Blue Whale can reach 33 metres and weigh 190 tonnes.

Q16. How many months have 31 days?

✅ Answer: 7

💡 7 months have 31 days: January, March, May, July, August, October, December.

Q17. What color does litmus paper turn in acid?

✅ Answer: Red

💡 Litmus paper turns red in acidic solutions and blue in alkaline solutions.

Q18. Who painted the Mona Lisa?

✅ Answer: Leonardo da Vinci

💡 The Mona Lisa was painted by Leonardo da Vinci, believed to be around 1503-1519.

Q19. How many keys does a standard piano have?

✅ Answer: 88

💡 A standard modern piano has 88 keys, 52 white and 36 black.

Q20. Which metal is liquid at room temperature?

✅ Answer: Mercury

💡 Mercury (Hg) is the only metal that is liquid at room temperature.

Q21. What is the Earth's natural satellite?

✅ Answer: The Moon

💡 The Moon is Earth's only natural satellite, orbiting at 384,400 km.

Q22. How many letters are in the English alphabet?

✅ Answer: 26

💡 The English alphabet has 26 letters.

Q23. What is the phobia of spiders?

✅ Answer: Arachnophobia

💡 Arachnophobia is the fear of spiders, one of the most common phobias worldwide.

Q24. Which sport uses the term 'love' to mean zero?

✅ Answer: Tennis

💡 In tennis, 'love' means zero (0 points).

Q25. What is the main ingredient of glass?

✅ Answer: Sand (silica)

💡 Glass is primarily made from silica (sand/SiO2) heated to extremely high temperatures.

Q26. Which planet is known as Earth's twin?

✅ Answer: Venus

💡 Venus is called Earth's twin, similar in size and mass.

Q27. How many chambers does the human heart have?

✅ Answer: 4

💡 The human heart has 4 chambers: right and left atria, and right and left ventricles.

Q28. What is the capital of Canada?

✅ Answer: Ottawa

💡 Ottawa is the capital of Canada, not Toronto which is the largest city.

Q29. In which sport do you score a 'birdie'?

✅ Answer: Golf

💡 In golf, a birdie is scoring 1 stroke under par on a hole.

Q30. What is the chemical symbol for silver?

✅ Answer: Ag

💡 Ag is the symbol for silver, from the Latin word 'Argentum'.

Q31. How many faces does a cube have?

✅ Answer: 6

💡 A cube has 6 faces, all are squares of equal size.

Q32. What animal is the symbol of the WWF?

✅ Answer: Giant Panda

💡 The Giant Panda has been the WWF's logo since 1961.

Q33. How long does Earth take to rotate on its axis?

✅ Answer: 24 hours

💡 Earth completes one full rotation in approximately 24 hours.

Q34. World's most spoken language overall?

✅ Answer: English

💡 English is the most widely spoken language when total speakers are counted.

Q35. Which ocean is the saltiest?

✅ Answer: Atlantic

💡 The Atlantic Ocean is the saltiest of the world's major oceans.

Q36. What is the national flower of Japan?

✅ Answer: Cherry Blossom

💡 The Cherry Blossom (Sakura) is Japan's unofficial national flower.

Q37. How many zeros does 1 billion have?

✅ Answer: 9

💡 1 billion = 1,000,000,000, it has 9 zeros.

Q38. Which vitamin is produced when exposed to sunlight?

✅ Answer: Vitamin D

💡 Vitamin D is synthesized in the skin when exposed to sunlight.

Q39. What is the world's most popular sport?

✅ Answer: Football (Soccer)

💡 Football (soccer) is the world's most popular sport with over 4 billion fans.

Q40. What does 'FIFA' stand for?

✅ Answer: Fédération Internationale de Football Association

💡 FIFA = Fédération Internationale de Football Association.

Q41. How many rings are on the Olympic flag?

✅ Answer: 5

💡 The Olympic flag has 5 rings representing the 5 continents.

Q42. What is the currency of the United Kingdom?

✅ Answer: Pound Sterling

💡 The currency of the UK is the Pound Sterling (£).

Q43. Which bird is the universal symbol of peace?

✅ Answer: Dove

💡 The white dove is universally recognized as a symbol of peace.

Q44. How many planets in our solar system have rings?

✅ Answer: 4

💡 Four planets have ring systems: Saturn, Jupiter, Uranus, and Neptune.

Q45. What is the only mammal that can fly?

✅ Answer: Bat

💡 Bats are the only mammals capable of true sustained flight.

Q46. In which city is the Eiffel Tower?

✅ Answer: Paris

💡 The Eiffel Tower is in Paris, France, built in 1889 for the World's Fair.

Q47. What does 'NASA' stand for?

✅ Answer: National Aeronautics and Space Administration

💡 NASA = National Aeronautics and Space Administration.

Q48. What is the longest bone in the human body?

✅ Answer: Femur

💡 The femur (thigh bone) is the longest and strongest bone in the human body.

Q49. Which country invented paper?

✅ Answer: China

💡 China invented paper around 105 AD during the Han Dynasty.

Q50. How many hearts does an octopus have?

✅ Answer: 3

💡 An octopus has 3 hearts, 2 pump blood to the gills, 1 to the rest of the body.

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