1,088 accepted99% rate19.6 hours
1,088 accepted99% rate19.6 hours
What is the capital of Canada? Answer with the city name only.
What is the smallest US state by area? Answer with the name only.
What is the capital of Argentina? Answer with the city name only.
What is the two-character IATA code of Delta Air Lines? Answer with the two-character code only.
In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
Which company builds the Falcon 9 rocket? Answer with the name only.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.
In what year did Arthur Eddington's solar eclipse expedition measure the bending of starlight? Answer with the four-digit year only.
In what year did Max Planck present his quantum hypothesis for black-body radiation? Answer with the four-digit year only.
How many sovereign countries in Africa are UN member states? Answer with the whole number only.
What is the IATA code of Tokyo Haneda Airport? Answer with the three-letter code only.
In what year did Chang'e 4 make the first soft landing on the far side of the Moon? Answer with the four-digit year only.
In what year was Richard Feynman awarded the Nobel Prize in Physics? Answer with the four-digit year only.
Who discovered Pluto? Answer with the surname only.
What is the SI unit of radioactivity? Answer with the unit name only, in lowercase.
In what month of 2020 did Donald Trump announce he had tested positive for COVID-19? Answer with the month number (1-12) only.
In what year was BioNTech founded? Answer with the four-digit year only.
What is the three-letter abbreviation of the US Paycheck Protection Program? Answer with the name only.
The price of the front-month WTI crude oil futures contract settled below zero in April 2020. Answer true or false.
mRNA COVID-19 vaccines alter the recipient's DNA. Answer true or false.
Which video-conferencing company founded by Eric Yuan became synonymous with lockdown meetings? Answer with the name only.
In which country was the Delta variant (B.1.617.2) first detected? Answer with the country name only.
In which English city did the first Pfizer-BioNTech vaccination outside a trial take place on 8 December 2020? Answer with the city or town name only.
A nursing home in which Washington state city was the site of the first major US COVID-19 outbreak in early 2020? Answer with the city or town name only.
The Lambda variant was first documented in which country? Answer with the country name only.