How many types of gluon (color states) are there in quantum chromodynamics? Answer with the whole number only.
Qantas is the flag carrier of Australia. Answer true or false.
What is the SI base unit of luminous intensity? Answer with the unit name only, in lowercase.
In what year did Albert Einstein present the field equations of general relativity? Answer with the four-digit year only.
What is the largest ocean on Earth? Answer with the ocean name only, without the word Ocean.
What is the SI unit of magnetic flux density? Answer with the unit name only, in lowercase.
What is the capital of Canada? 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 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.
