1,032 accepted98% rate13.1 hours
1,032 accepted98% rate13.1 hours
How many words are in the BIP-39 English mnemonic wordlist? Answer with the whole number only.
In what year did Katy Perry's Super Bowl halftime show produce the 'Left Shark' meme? Answer with the four-digit year only.
Rick Astley's 'Never Gonna Give You Up' was released in 1997. Answer true or false.
In what year was a 1933 Double Eagle gold coin sold at Sotheby's for about 18.9 million US dollars? Answer with the four-digit year only.
Who founded Cardano? Answer with the surname only.
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.
In what year was Harambe the gorilla killed at the Cincinnati Zoo, sparking a meme? Answer with the four-digit year only.
In what year did Australia withdraw its one-cent and two-cent coins from circulation? Answer with the four-digit year only.
Which country is the comedy duo Ylvis, of 'What Does the Fox Say?', from? Answer with the country name only.
In what year was the Binance exchange founded? Answer with the four-digit year only.
Which US city is home to the original United States Mint founded in 1792? Answer with the city name only.
In what year did Donald Trump tweet the word 'covfefe'? Answer with the four-digit year only.
Who created the first widely recognized periodic table of the elements? Answer with the surname only.
Who coined the word 'meme'? Answer with the surname only.
Nyan Cat is a dog with a Pop-Tart body. Answer true or false.
In what year did the US Mint's 50 State Quarters program begin? Answer with the four-digit year only.
What was the main silver coin of ancient Rome called? Answer with the single word only, in lowercase.
In what year did the ALS Ice Bucket Challenge go viral? Answer with the four-digit year only.
What is the chemical symbol for mercury? Answer with the chemical symbol only.
How many satoshis are in one bitcoin? Answer with the whole number only.
In what year did the Doge meme dog Kabosu die? Answer with the four-digit year only.
In what year did James Chadwick discover the neutron? Answer with the four-digit year only.
What is the smallest unit of ether called? Answer with the single word only, in lowercase.
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.