Science
History
Geography
100
What animal has three hearts?
Octopuses—two for gills, one for the body.
100
Which ancient civilization-built Machu Picchu?
The Inca Empire
100
What is the warmest continent?
Africa
200
What’s the only mammal that can’t jump?
Elephants.
200
Which river was central to the development of the Harappan (Indus Valley) Civilization?
The Indus River
200
Which is the smallest country by land area that is still considered a continent?
Australia
300
What animal has fingerprints nearly identical to humans?
Koalas.
300
Which revolution replaced a lunar calendar with a decimal one?
The French Revolution.
300
Which famous monument is nicknamed "Iron Lady"?
Eiffel Tower -- The iconic wrought-iron tower was the tallest structure in the world when completed — measuring 1,063 feet to its tip.
400
What’s the loudest sound ever recorded on Earth?
The Krakatoa volcanic eruption (1883)—heard over 4,800 km away.
400
What was the official language of administration in the Holy Roman Empire?
Latin
400
Which island is the largest in the Mediterranean Sea?
Sicily
500
What happens to time at higher speed?
It slows down (Einstein’s time dilation).
500
Which war saw the first use of tanks in combat?
World War I (Battle of the Somme, 1916)
500
What river flows between Nebraska and Iowa?
Missouri River
600
What is a light-year a measure of?
Distance, not time.
600
Which empire ruled the largest contiguous landmass in history?
The Mongol Empire
600
The Congo River flows into which body of water?
Atlantic Ocean
700
What atmospheric layer contains the ozone maximum?
The stratosphere.
700
During the Cold War, what crisis in 1962 nearly brought the US and USSR to nuclear war?
The Cuban Missile Crisis
700
Which island nation is made up of over 17,000 islands?
Indonesia
800
What quantity does the wavefunction’s squared magnitude represent?
Probability density.
800
Which ancient civilization first developed a lunar calendar?
Babylonians
800
Which US state is known as the “Land of Enchantment”?
New Mexico
900
What is the strongest intermolecular force present in water?
Hydrogen bonding.
900
Who wrote The Histories, often called the “Father of History”?
Herodotus
900
What is the only country that is also a city-state located on an island?
Singapore
1000
What parameter describes the universe’s expansion rate?
The Hubble constant.
1000
The Opium Wars were fought between China and which country?
Britain
1000
Which country has two capitals—one for administrative purposes and one for the judiciary?
South Africa (Pretoria – administrative, Bloemfontein – judiciary, Cape Town – legislative)