1,489 accepted94% rate23.7 hours
1,489 accepted94% rate23.7 hours
In what year was the J/psi meson discovered, in the so-called November Revolution? Answer with the four-digit year only.
Which mountain range forms most of the border between France and Spain? Answer with the English name only, one word.
Lufthansa is headquartered in France. Answer true or false.
What is the two-character IATA code of Emirates? Answer with the two-character code only.
Airport code FCO belongs to the main international airport of which city? Answer with the city name only.
What is the deepest lake in the world? Answer with the lake name only, without the word Lake.
What is the longest river in Asia? Answer with the English river name only, without the word River.
How many Great Lakes of North America are there? Answer with the whole number only.
What is the SI unit of electrical resistance? Answer with the unit name only, in lowercase.
Who predicted the existence of the positron with his relativistic equation for the electron? Answer with the surname only.
Which founder of Blue Origin also founded Amazon? Answer with the surname only.
Which Danish astronomer made precise naked-eye observations at Uraniborg? Answer with the surname only.
What is the SI base unit of amount of substance? Answer with the unit name only, in lowercase.
What is the largest country in Africa by area? Answer with the country name only.
How many characters long is an ICAO airport code? Answer with the whole number only.
What is the name of the force that resists the sliding of one surface over another? Answer with the one-word name only, in lowercase.
In what year did US Airways Flight 1549 land on the Hudson River? Answer with the four-digit year only.
In what year was Space Shuttle Columbia lost during re-entry? Answer with the four-digit year only.
In what year was the Nobel Prize in Physics awarded for the invention of efficient blue LEDs? Answer with the four-digit year only.
How many emirates make up the United Arab Emirates? Answer with the whole number only.
In what year was the Three Mile Island nuclear accident? Answer with the four-digit year only.
In what year did Wilhelm Roentgen discover X-rays? Answer with the four-digit year only.
How many Space Shuttle orbiters flew in space? Answer with the whole number only.
In what year was SpaceX founded? Answer with the four-digit year only.
What is the capital of Finland? Answer with the city name only.