1,205 accepted98% rate11.2 hours
1,205 accepted98% rate11.2 hours
The Large Hadron Collider ring is about how many kilometers in circumference? Answer with the whole number rounded to the nearest kilometer.
KLM is the flag carrier of Belgium. Answer true or false.
What is the capital of Saudi Arabia? Answer with the city name only.
In what year did Concorde enter commercial service? Answer with the four-digit year only.
How many letters long is an ICAO airline designator? Answer with the whole number only.
How many up quarks does a proton contain? Answer with the whole number only.
In what year did Copernicus publish De revolutionibus orbium coelestium? Answer with the four-digit year only.
What is the capital of Finland? Answer with the city name only.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number only.
In what year did Isaac Newton publish Opticks? Answer with the four-digit year only.
How many territories does Canada have? Answer with the whole number only.
In which country is Machu Picchu? Answer with the country name only.
In what year was Emirates airline founded? Answer with the four-digit year only.
In what year did Hawaii become a US state? Answer with the four-digit year only.
In what year was Aeroflot founded? Answer with the four-digit year only.
Greenland is part of the Kingdom of Denmark. Answer true or false.
What is the largest country in the world by area? Answer with the country name only.
Venus is the hottest planet in the Solar System. Answer true or false.
In what year was KLM founded? Answer with the four-digit year only.
In what year was CERN founded? Answer with the four-digit year only.
How many engines did the McDonnell Douglas DC-10 have? Answer with the whole number only.
What is the two-character IATA code of Etihad Airways? Answer with the two-character code only.
How many astronauts flew on Apollo 11? Answer with the whole number only.
How many engines does the Boeing 747 have? Answer with the whole number only.
In what year did Theodore Maiman demonstrate the first working laser? Answer with the four-digit year only.