1,107 accepted99% rate18.9 hours
1,107 accepted99% rate18.9 hours
In what year did the Tunguska event flatten forest in Siberia? Answer with the four-digit year only.
What is the capital of Nigeria? Answer with the city name only.
What is the largest country in Africa by area? Answer with the country name only.
In what year was the kilogram redefined in terms of the Planck constant, taking effect on 20 May? Answer with the four-digit year only.
What is the capital of the US state of Pennsylvania? Answer with the city name only.
Which sea lies between Italy and the Balkan Peninsula? Answer with the sea name only, without the word Sea.
What is the largest moon in the Solar System? Answer with the name only.
What is the capital of Ghana? Answer with the city name only.
What is the highest mountain in South America? Answer with the name only.
The Airbus A380 has two full-length passenger decks. Answer true or false.
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.
What is the IATA code of Dubai International Airport? Answer with the three-letter code only.
In what year was Neptune discovered? Answer with the four-digit year only.
In what year did Isaac Newton die? Answer with the four-digit year only.
The Boeing 747 has three engines. Answer true or false.
How many dwarf planets does the International Astronomical Union officially recognize? Answer with the whole number 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.
Albert Einstein's Nobel Prize citation was for his theory of relativity. Answer true or false.
In what year did Paul Dirac publish his relativistic equation for the electron? Answer with the four-digit year only.
In what year was Zarya, the first module of the International Space Station, launched? Answer with the four-digit year 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.
How many flavors of lepton are there in the Standard Model? Answer with the whole number only.