1,046 accepted99% rate18.8 hours
1,046 accepted99% rate18.8 hours
What is the atomic number of aluminium? Answer with the whole number only.
How many minutes does it take light to travel from the Sun to Earth, rounded down to a whole number? Answer with the whole number only.
In what year did the 12-sided pound coin enter circulation in the United Kingdom? Answer with the four-digit year only.
The British two-pound coin is bimetallic. Answer true or false.
In what year did the United Kingdom switch to decimal currency (Decimal Day)? Answer with the four-digit year only.
Which country does Pinkfong, the company behind 'Baby Shark Dance', come from? Answer with the country name only.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
DNA has a double-helix structure. Answer true or false.
The animal in the 'Dramatic Chipmunk' video is actually a prairie dog. Answer true or false.
Which country is the 'Hide the Pain Harold' model, Andras Arato, from? Answer with the country name only.
Which US city's mint uses the mint mark 'D'? Answer with the city name only.
In what year did Ethereum complete the Merge to proof of stake? Answer with the four-digit year only.
What is the name of the elliptic curve Bitcoin uses for its signatures? Answer with the single word only, in lowercase.
What was the gold coin introduced by the Byzantine emperor Constantine the Great called? Answer with the single word only, in lowercase.
In what year did the 'Dancing Baby' 3D animation spread online? Answer with the four-digit year only.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
Which dog breed is the Dogecoin mascot? Answer with the name only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.
Harambe was a chimpanzee. Answer true or false.
What is the SI base unit of electric current? Answer with the single word only, in lowercase.
In what year did the 'OK boomer' catchphrase go viral? Answer with the four-digit year only.
Which singer had the 2011 viral hit 'Friday'? Answer with the surname only.
In what year did the 'Tide Pod challenge' meme spread? Answer with the four-digit year only.
How many valence electrons does a carbon atom have? Answer with the whole number only.
How many chromosomes are in a typical human body cell? Answer with the whole number only.