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General Knowledge MCQs

MCQs on Science, Arts, Sports and World Facts

65 Questions
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Expand your knowledge of countries, history, geography, organizations, discoveries, important personalities and world records.

World GeographyHistoryOrganizationsImportant Facts
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21
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The philosopher who said 'I think therefore I am' was?

  • A Voltaire
  • B Descartes
  • C Locke
  • D Rousseau
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Correct Answer: Option B — Descartes
Explanation: René Descartes a French philosopher stated Cogito ergo sum I think therefore I am in his 1637 work Discourse on the Method. This statement is a foundational element of Western philosophy as Descartes used it as a starting point for knowledge demonstrating that the act of thinking proves existence.
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22
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The Amazon Rainforest is often called the 'Lungs of the Earth' because?

  • A It filters ocean water
  • B It absorbs most carbon underground
  • C It produces about 20% of Earth's oxygen
  • D It provides shelter for most animal species
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Correct Answer: Option C — It produces about 20% of Earth's oxygen
Explanation: The Amazon Rainforest is often called the Lungs of the Earth because it produces approximately 20% of the world's oxygen through photosynthesis and absorbs vast amounts of carbon dioxide. Covering about 5.5 million square kilometers primarily in Brazil it is the world's largest tropical rainforest and biodiversity hotspot.
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23
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The headquarters of Interpol is located in?

  • A Paris
  • B Brussels
  • C London
  • D Lyon
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Correct Answer: Option D — Lyon
Explanation: Interpol's General Secretariat is located in Lyon France. Interpol the International Criminal Police Organization facilitates international police cooperation among 195 member countries to combat transnational crime terrorism human trafficking and cybercrime. It maintains criminal databases and issues international notices including the famous Red Notice for fugitives.
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24
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Halley's Comet is visible from Earth approximately every how many years?

  • A 50
  • B 75
  • C 76
  • D 100
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Correct Answer: Option C — 76
Explanation: Halley's Comet has an orbital period of approximately 75 to 76 years and is the most well-known short-period comet. It last appeared in 1986 and is expected to return in 2061. Named after astronomer Edmond Halley who first calculated its periodic orbit it has been observed for thousands of years.
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25
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The headquarters of NATO is located in?

  • A London
  • B Brussels
  • C Berlin
  • D Paris
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Correct Answer: Option B — Brussels
Explanation: NATO's headquarters is located in Brussels Belgium. The North Atlantic Treaty Organization was established in 1949 as a military alliance between Western nations to provide collective defense. Following France's partial withdrawal and Belgium's strategic importance Brussels became home to NATO's political headquarters.
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26
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The printing press was invented by?

  • A Leonardo da Vinci
  • B Galileo Galilei
  • C Johannes Gutenberg
  • D Nicolaus Copernicus
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Correct Answer: Option C — Johannes Gutenberg
Explanation: Johannes Gutenberg a German goldsmith invented the mechanical movable type printing press around 1440 in Mainz Germany. His invention revolutionized book production enabling mass printing of texts including the Bible. This democratized knowledge undermined Church authority and was a catalyst for the Renaissance and Reformation.
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27
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The Gulf Stream is a powerful ocean current located in which ocean?

  • A Pacific Ocean
  • B Indian Ocean
  • C Arctic Ocean
  • D Atlantic Ocean
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Correct Answer: Option D — Atlantic Ocean
Explanation: The Gulf Stream is a warm and swift Atlantic Ocean current that flows from the Gulf of Mexico along the eastern coast of the United States and across the Atlantic to Europe. It significantly moderates the climate of Western Europe making it warmer than other regions at the same latitude.
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28
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The Reformation movement was started by which figure?

  • A John Calvin
  • B Martin Luther
  • C Thomas Aquinas
  • D Erasmus
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Correct Answer: Option B — Martin Luther
Explanation: The Protestant Reformation was initiated by Martin Luther a German theologian who published his 95 Theses in 1517 criticizing the Catholic Church's practice of selling indulgences. This movement led to the division of Western Christianity into Catholic and various Protestant denominations transforming European religious and political history.
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29
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The Trojan War was fought between ancient Greece and which city?

  • A Carthage
  • B Persia
  • C Troy
  • D Sparta
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Correct Answer: Option C — Troy
Explanation: According to Greek mythology and Homer's Iliad the Trojan War was fought between the Greeks and the city of Troy located in present-day Turkey. It was said to have lasted ten years and was triggered by the abduction of Helen by Paris of Troy. Archaeological evidence suggests Troy was a real city.
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30
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Transparency International publishes which annual index?

  • A Human Development Index
  • B Global Peace Index
  • C Corruption Perceptions Index
  • D Press Freedom Index
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Correct Answer: Option C — Corruption Perceptions Index
Explanation: Transparency International publishes the Corruption Perceptions Index annually ranking countries by perceived levels of public sector corruption based on expert assessments and surveys. Countries with higher scores are perceived as less corrupt. This index is widely referenced in governance policy and international development research.
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31
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Which ancient wonder was located in Alexandria Egypt?

  • A Temple of Artemis
  • B Colossus of Rhodes
  • C Lighthouse of Alexandria
  • D Statue of Zeus
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Correct Answer: Option C — Lighthouse of Alexandria
Explanation: The Lighthouse of Alexandria also known as the Pharos of Alexandria was built between 280 and 247 BC on the island of Pharos. Standing between 100 and 140 meters tall it was among the tallest man-made structures for centuries and guided sailors into the busy port of Alexandria.
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32
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The Berlin Wall fell in which year?

  • A 1987
  • B 1988
  • C 1989
  • D 1990
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Correct Answer: Option C — 1989
Explanation: The Berlin Wall which divided East and West Berlin fell on November 9 1989 following a peaceful revolution in East Germany. Its fall marked the end of the Cold War division of Germany and symbolized the broader collapse of communist regimes in Eastern Europe leading to German reunification in 1990.
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33
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The Silk Road was a network of trade routes connecting which regions?

  • A Europe and America
  • B China and Europe
  • C India and Africa
  • D Arabia and China
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Correct Answer: Option B — China and Europe
Explanation: The Silk Road was an ancient network of trade routes that connected China to Europe passing through Central Asia South Asia the Middle East and East Africa. It facilitated trade in silk spices gold and ideas including religions and technologies for over a millennium from about 130 BC to 1453 AD.
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34
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Who wrote 'The Republic'?

  • A Aristotle
  • B Socrates
  • C Plato
  • D Cicero
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Correct Answer: Option C — Plato
Explanation: The Republic was written by the ancient Greek philosopher Plato around 380 BC. It is a Socratic dialogue exploring justice politics and the ideal state. In it Plato describes philosopher-kings as ideal rulers and presents the Allegory of the Cave a foundational concept in philosophy and political thought.
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35
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The International Court of Justice is located in?

  • A Brussels
  • B The Hague
  • C Geneva
  • D Vienna
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Correct Answer: Option B — The Hague
Explanation: The International Court of Justice is the principal judicial organ of the United Nations and is located in The Hague Netherlands at the Peace Palace. It settles legal disputes between nation states and provides advisory opinions on international legal questions referred to it by UN organs and agencies.
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36
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The Treaty of Versailles ended which war?

  • A World War II
  • B The Crimean War
  • C World War I
  • D The Franco-Prussian War
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Correct Answer: Option C — World War I
Explanation: The Treaty of Versailles signed on June 28 1919 officially ended World War I between the Allied Powers and Germany. It imposed heavy reparations and territorial losses on Germany which many historians consider a contributing factor to the economic hardship and political instability that led to World War II.
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37
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Which country invented paper?

  • A Egypt
  • B China
  • C India
  • D Mesopotamia
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Correct Answer: Option B — China
Explanation: Paper was invented in ancient China around 105 AD by Cai Lun a court official during the Eastern Han Dynasty. He made paper from bark hemp rags and fishnets. This invention revolutionized communication record-keeping and eventually spread through the Islamic world to Europe changing civilization.
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38
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The speed of light in a vacuum is approximately?

  • A 300000 km/s
  • B 30000 km/s
  • C 3000000 km/s
  • D 3000 km/s
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Correct Answer: Option A — 300000 km/s
Explanation: The speed of light in a vacuum is approximately 299792 kilometers per second often rounded to 300000 km/s. It is denoted by the letter c and is a fundamental constant in physics forming the basis of Einstein's special relativity and setting the universal speed limit.
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39
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The French Revolution began in which year?

  • A 1776
  • B 1789
  • C 1799
  • D 1804
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Correct Answer: Option B — 1789
Explanation: The French Revolution began in 1789 with the storming of the Bastille prison on July 14. It led to the abolition of the French monarchy establishment of the First French Republic and resulted in major political and social transformations in France and across Europe with lasting global impact.
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40
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The Battle of Waterloo took place in which year?

  • A 1812
  • B 1813
  • C 1815
  • D 1818
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Correct Answer: Option C — 1815
Explanation: The Battle of Waterloo was fought on June 18 1815 near Waterloo in present-day Belgium. It resulted in the defeat of Napoleon Bonaparte by the Duke of Wellington commanding allied forces supported by Prussian troops. This battle ended the Napoleonic Wars and Napoleon's political career.
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