In what year did the Airbus A321XLR enter commercial service? Answer with the four-digit year only.
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.
What is the two-character IATA code of Delta Air Lines? Answer with the two-character code only.
What is the SI unit of electrical capacitance? Answer with the unit name only, in lowercase.
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.
Water at standard pressure freezes at how many degrees Fahrenheit? Answer with the whole number only.
In what year did Max Planck present his quantum hypothesis for black-body radiation? Answer with the four-digit year only.
What is the IATA code of Newark Liberty International Airport? Answer with the three-letter code only.
In what year did the Boeing 737 make its first flight? 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 Valentina Tereshkova fly in space? Answer with the four-digit year 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.
How many states does Brazil have, not counting the Federal District? Answer with the whole number only.
In what year was Richard Feynman awarded the Nobel Prize in Physics? Answer with the four-digit year only.
