573 accepted99% rate10.1 hours
573 accepted99% rate10.1 hours
In what year did LIGO first directly detect gravitational waves (event GW150914)? Answer with the four-digit year only.
Which team won Super Bowl LIX? Answer with the team nickname only (for example 'Yankees').
Who co-wrote 'The Communist Manifesto' with Friedrich Engels? Answer with the surname only.
In what year did the Chernobyl nuclear disaster occur? Answer with the four-digit year only.
How many Wimbledon singles titles did Roger Federer win? Answer with the whole number only.
Which country has won the most men's FIFA World Cups? Answer with the country name only.
What is the capital of Australia? Answer with the city name only.
In what year was Nelson Mandela elected President of South Africa? Answer with the four-digit year only.
Finland joined NATO in 2023. Answer true or false.
The Great Wall of China is visible to the naked eye from the Moon. Answer true or false.
Which city hosted the 2024 Summer Olympics? Answer with the city name only.
In what year did the United Kingdom formally leave the European Union? Answer with the four-digit year only.
Which country won the 2024 Copa America? Answer with the country name only.
In what year was the US Declaration of Independence adopted? Answer with the four-digit year only.
In what year did India gain independence from Britain? Answer with the four-digit year only.
How many moons does Mars have? Answer with the whole number only.
In what year did Mount St. Helens have its major eruption? Answer with the four-digit year only.
Who was US president during the Cuban Missile Crisis? Answer with the surname only.
Which country hosted the 2022 FIFA World Cup? Answer with the country name only.
What is the chemical symbol for iron? Answer with the chemical symbol only.
What is the boiling point of water at sea level in degrees Fahrenheit? Answer with the whole number only.
Who has been Chief Justice of the United States since 2005? Answer with the surname only.
How many players per team are on the court in basketball? Answer with the whole number only.
How many legs does a spider have? Answer with the whole number only.
What is the chemical symbol for copper? Answer with the chemical symbol only.