1,333 accepted99% rate21.9 hours
1,333 accepted99% rate21.9 hours
Who wrote the Ethereum Yellow Paper and later founded Polkadot? Answer with the surname only.
In what year did the 'Star Wars Kid' video spread online? Answer with the four-digit year only.
Bitcoin uses proof of stake to secure its network. Answer true or false.
In what year was the Shiba Inu (SHIB) token launched? Answer with the four-digit year only.
The Krugerrand is minted in Australia. Answer true or false.
In what year was Sputnik 1 launched? Answer with the four-digit year only.
Ethereum now uses proof of stake. Answer true or false.
How many valence electrons does a carbon atom have? Answer with the whole number only.
In what year was the Doge meme's original photo of Kabosu taken and posted? Answer with the four-digit year only.
How many chromosomes are in a typical human body cell? Answer with the whole number only.
In what year was the Trinity test, the first nuclear explosion? Answer with the four-digit year only.
Every how many blocks does Bitcoin adjust its mining difficulty? Answer with the whole number only.
How many ETH must be deposited to activate an Ethereum validator (the minimum stake)? Answer with the whole number only.
What is the atomic number of sodium? Answer with the whole number only.
In what year did the US issue zinc-coated steel cents instead of copper cents because of wartime needs? Answer with the four-digit year only.
How many sides does the Australian 50-cent coin have? Answer with the whole number only.
In what year did the 'Coffin Dance' (Ghanaian pallbearers) meme go viral? Answer with the four-digit year only.
In what year was the Lincoln cent first issued in the United States? Answer with the four-digit year only.
What is the SI base unit of temperature? Answer with the single word only, in lowercase.
In what year was the Bitcoin genesis block mined? Answer with the four-digit year only.
Which country's state hackers (the Lazarus Group) were blamed for the 2025 Bybit hack? Answer with the country name only.
What is the chemical symbol for lead? Answer with the chemical symbol only.
In what year did the Mannequin Challenge go viral? Answer with the four-digit year only.
What is the atomic number of platinum? Answer with the whole number only.
What is the term for the 'tails' side of a coin? Answer with the single word only, in lowercase.