1,255 accepted99% rate16.9 hours
1,255 accepted99% rate16.9 hours
Barack Obama served three terms as US president. Answer true or false.
In what year did the Watergate break-in occur? Answer with the four-digit year only.
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.
Who was UK Prime Minister for most of the Second World War? Answer with the surname only.
How many Wimbledon singles titles did Roger Federer win? Answer with the whole number only.
Which country joined NATO in March 2024? Answer with the country name only.
Which country has won the most men's FIFA World Cups? Answer with the country name only.
Who won the 2025 Australian Open men's singles title? Answer with the surname only.
What is the capital of Australia? Answer with the city name only.
What gas do plants take in from the air for photosynthesis? Answer with the chemical formula 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.
What is the chemical symbol for tin? Answer with the chemical symbol only.
Which city hosted the 2024 Summer Olympics? Answer with the city name only.
In what year did Apollo 11 land on the Moon? Answer with the four-digit year only.
In what year did the United Kingdom formally leave the European Union? Answer with the four-digit year only.
How many Grand Slam singles titles has Novak Djokovic won as of mid-2025? Answer with the whole number only.
Which country won the 2024 Copa America? Answer with the country name only.
In what year did the Berlin Wall fall? Answer with the four-digit year 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.