3,374 accepted98% rate47.8 hours
3,374 accepted98% rate47.8 hours
In what year did 'Gangnam Style' become the first YouTube video to reach one billion views? Answer with the four-digit year only.
Who devised the binomial system for naming species? Answer with the surname only.
In what year did the 'Hawk Tuah' street interview go viral? Answer with the four-digit year only.
How many words are in the BIP-39 English mnemonic wordlist? Answer with the whole number only.
In which US city's zoo was the first YouTube video, 'Me at the zoo', filmed? Answer with the city name only.
Which South Korean artist performed 'Gangnam Style'? Answer with the name only.
Rick Astley's 'Never Gonna Give You Up' was released in 1997. Answer true or false.
Helium is a noble gas. Answer true or false.
Who created the Silk Road marketplace? Answer with the surname only.
How many reeds are on the edge of a modern US dime? Answer with the whole number only.
What is the chemical symbol for sodium? Answer with the chemical symbol only.
How many wei are in one ether? Answer with the whole number only.
How many pence made up one pound sterling before decimalisation in 1971? Answer with the whole number only.
Who co-founded and leads Coinbase as chief executive? Answer with the surname only.
In what year was Rick Astley's 'Never Gonna Give You Up' released? Answer with the four-digit year only.
Who founded Cardano? Answer with the surname only.
In what year did Edwin Hubble publish evidence that the universe is expanding? Answer with the four-digit year only.
Whose portrait appears on the obverse of the US dime? Answer with the surname only.
What was Grumpy Cat's real name? Answer with the name only.
In what year did the Perseverance rover land on Mars? Answer with the four-digit year only.
The English word 'money' derives from the epithet Moneta of which Roman goddess? Answer with the name only.
Which British newspaper's headline is embedded in the Bitcoin genesis block? Answer with the name only.
Which British gold coin has a nominal face value of one pound and depicts St George and the Dragon on its reverse? Answer with the single word only, in lowercase.
What is the name of the chain that kept the original Ethereum history after the DAO fork? Answer with the name only.
What is the hardest substance in the human body? Answer with the single word only, in lowercase.