In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
What is the two-character IATA code of Delta Air Lines? Answer with the two-character code only.
Water at standard pressure freezes at how many degrees Fahrenheit? Answer with the whole number only.
What is the IATA code of Newark Liberty International Airport? Answer with the three-letter code only.
Airport code ORD belongs to the main international airport of which US city? Answer with the city name only.
In what year did Valentina Tereshkova fly in space? Answer with the four-digit year only.
How many states does Brazil have, not counting the Federal District? Answer with the whole number only.
Who discovered Pluto? Answer with the surname only.
What is the capital of Bulgaria? Answer with the city name only.
How many countries share a land border with Brazil? Answer with the whole number only.
In what month of 2020 did Donald Trump announce he had tested positive for COVID-19? Answer with the month number (1-12) only.
N95 respirators are named for filtering at least what percent of airborne particles? Answer with the whole number only.
What is the three-letter abbreviation of the US Paycheck Protection Program? Answer with the name only.
Which Omicron subvariant was nicknamed 'Kraken' in early 2023? Answer with the lineage code only.
On what day of February 2020 did the WHO announce the name COVID-19? Answer with the day of the month as a whole number only.
In what year did the influenza pandemic known as the Spanish flu, often compared with COVID-19, begin? Answer with the four-digit year only.
