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General Knowledge Hard

General Knowledge Hard Quiz 2

Advanced general knowledge — only the sharpest minds will score high!

20 Questions
35s Per Question
1+ Plays
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1. What is the powerhouse of the cell?

  • A. Nucleus
  • B. Ribosome
  • C. Golgi apparatus
  • D. Mitochondria ✓

💡 The mitochondria produce ATP through cellular respiration, supplying energy to the cell.

2. In which year did the Titanic sink?

  • A. 1910
  • B. 1911
  • C. 1912 ✓
  • D. 1913

💡 The RMS Titanic struck an iceberg and sank on April 15, 1912 on its maiden voyage.

3. How many moons does Mars have?

  • B. 1
  • C. 2 ✓
  • D. 3

💡 Mars has 2 moons: Phobos and Deimos, both thought to be captured asteroids.

4. Which planet rotates on its side with an axial tilt of about 98 degrees?

  • A. Neptune
  • B. Saturn
  • C. Venus
  • D. Uranus ✓

💡 Uranus has an axial tilt of 97.77 degrees, meaning it essentially rolls around the Sun on its side.

5. What is the rarest blood type?

  • A. O negative
  • B. A negative
  • C. B negative
  • D. AB negative ✓

💡 AB negative is the rarest blood type, found in only about 1% of the global population.

6. Which country has won the most FIFA World Cup titles?

  • A. Germany
  • B. Argentina
  • C. Italy
  • D. Brazil ✓

💡 Brazil has won the FIFA World Cup 5 times: 1958, 1962, 1970, 1994, and 2002.

7. Which mountain range contains Mount Everest?

  • A. Karakoram
  • B. Hindu Kush
  • C. Kunlun
  • D. Himalayas ✓

💡 Mount Everest is part of the Himalayan mountain range, located on the border of Nepal and Tibet.

8. What is the atomic number of gold?

  • A. 47
  • B. 79 ✓
  • C. 82
  • D. 92

💡 Gold (Au) has atomic number 79, meaning it has 79 protons in its nucleus.

9. In what year did the Berlin Wall fall?

  • A. 1987
  • B. 1988
  • C. 1990
  • D. 1989 ✓

💡 The Berlin Wall fell on November 9, 1989, marking a pivotal moment in the end of the Cold War.

10. How many bones are in the human ear?

  • A. 2
  • B. 3 ✓
  • C. 4
  • D. 5

💡 The human ear contains 3 tiny bones: the malleus (hammer), incus (anvil), and stapes (stirrup).

11. Which civilization built the Machu Picchu citadel?

  • A. Aztec
  • B. Maya
  • C. Olmec
  • D. Inca ✓

💡 Machu Picchu was built by the Inca Empire in the 15th century in modern-day Peru.

12. What is the name of the world's largest desert?

  • A. Gobi
  • B. Sahara
  • C. Arabian
  • D. Antarctic ✓

💡 Antarctica is the world's largest desert at 14.2 million km², as a desert is defined by low precipitation.

13. Which country has the longest coastline in the world?

  • A. Russia
  • B. Australia
  • C. Norway
  • D. Canada ✓

💡 Canada has the longest coastline in the world at approximately 202,080 km including islands.

14. What is the most spoken language in the world by total speakers?

  • A. Spanish
  • B. Mandarin Chinese
  • C. Hindi
  • D. English ✓

💡 English has over 1.5 billion total speakers (native + second language), making it the most spoken language globally.

15. What is the largest internal organ in the human body?

  • A. Heart
  • B. Kidneys
  • C. Brain
  • D. Liver ✓

💡 The liver is the largest internal organ, weighing about 1.5 kg and performing over 500 vital functions.

16. How many chambers does the human heart have?

  • A. 2
  • B. 3
  • C. 4 ✓
  • D. 5

💡 The human heart has 4 chambers: the left and right atria (upper) and left and right ventricles (lower).

17. Which country is the largest producer of coffee in the world?

  • A. Colombia
  • B. Ethiopia
  • C. Vietnam
  • D. Brazil ✓

💡 Brazil produces approximately 40% of the world's coffee supply and has been the top producer for 150 years.

18. Who was the first woman to win a Nobel Prize?

  • A. Rosalind Franklin
  • B. Ada Lovelace
  • C. Marie Curie ✓
  • D. Dorothy Hodgkin

💡 Marie Curie won the Nobel Prize in Physics in 1903 and later in Chemistry in 1911 — the first person to win twice.

19. What is the speed of sound at sea level in air?

  • A. 243 m/s
  • B. 343 m/s ✓
  • C. 443 m/s
  • D. 543 m/s

💡 Sound travels at approximately 343 metres per second in air at sea level at 20°C.

20. What is the chemical formula for table salt?

  • A. KCl
  • B. NaCl ✓
  • C. CaCl2
  • D. MgCl

💡 Table salt is sodium chloride, with the chemical formula NaCl — one sodium and one chlorine atom.

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