In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
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.
Who discovered Pluto? Answer with the surname 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.
From what minimum age was the Moderna vaccine first authorised in the US in December 2020? Answer with the whole number only.
Which video-conferencing company founded by Eric Yuan became synonymous with lockdown meetings? Answer with the name only.
What is the Pango lineage designation of the original Omicron variant? Answer with the lineage code only, e.g. 'A.1.2'.
The Oxford-AstraZeneca vaccine uses an adenovirus originally from which animal? Answer with one word only, in lowercase.
In what year did Shanghai undergo a roughly two-month citywide COVID-19 lockdown? Answer with the four-digit year only.
Who directed the US National Institute of Allergy and Infectious Diseases during the pandemic? Answer with the surname only.
Complete the pandemic slogan 'flatten the ...'. Answer with the missing word only, in lowercase.
The Tokyo Summer Olympics took place in 2020 as originally scheduled. Answer true or false.
