1,169 accepted95% rate18.2 hours
1,169 accepted95% rate18.2 hours
Which European currency's coins have a common reverse side and a national obverse side? Answer with the single word only, in lowercase.
What is Litecoin's target block time in seconds? Answer with the whole number only.
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.
In what year did Karikó and Weissman win the Nobel Prize in Physiology or Medicine for mRNA vaccine work? Answer with the four-digit year only.
What is the term for the 'heads' side of a coin? Answer with the single word only, in lowercase.
What is the total supply of XRP that was created, in whole coins? Answer with the whole number only.
In what year did the 'Tide Pod challenge' meme spread? Answer with the four-digit year only.
In what year was the American Silver Eagle bullion coin first issued? Answer with the four-digit year only.
How many valence electrons does a carbon atom have? Answer with the whole number only.
Which hashing algorithm does Litecoin use for proof of work? Answer with the single word only, in lowercase.
How many chromosomes are in a typical human body cell? Answer with the whole number only.
The British 50p coin is a perfect circle. Answer true or false.
Every how many blocks does Bitcoin adjust its mining difficulty? Answer with the whole number only.
Pepe the Frog was created by Matt Furie. Answer true or false.
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.
How many sides does the Australian 50-cent coin have? Answer with the whole number only.
US dimes minted today contain 90 percent silver. Answer true or false.
Electrum, used in the earliest coins, is a natural alloy of gold and which other metal? Answer with the single word only, in lowercase.
Which 'Ancient Aliens' presenter became the 'Aliens' meme guy? Answer with the surname only.
Who designed the first widely used emoji set in 1999? Answer with the surname only.
In what year was the Kennedy half dollar first issued? Answer with the four-digit year only.
On which blockchain was the $TRUMP memecoin launched? Answer with the name only.
Which planet is known as the Red Planet? Answer with the name only.