1,341 accepted99% rate22.7 hours
1,341 accepted99% rate22.7 hours
What is the chemical symbol for silver? Answer with the chemical symbol only.
What misspelled word for 'hold' became a crypto meme in 2013? Answer with the single word only, in lowercase.
In what year did Pepe the Frog first appear in the comic 'Boy's Club'? Answer with the four-digit year only.
Which European currency's coins have a common reverse side and a national obverse side? Answer with the single word only, in lowercase.
In what year did the 'Numa Numa' video by Gary Brolsma appear? Answer with the four-digit year only.
Who discovered the atomic nucleus through the gold foil experiment? Answer with the surname only.
Who wrote the Ethereum Yellow Paper and later founded Polkadot? Answer with the surname only.
Bitcoin uses proof of stake to secure its network. Answer true or false.
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.
The British 50p coin is a perfect circle. Answer true or false.
Which US Mint engraver designed the silver dollar first struck in 1878? Answer with the surname only.
Every how many blocks does Bitcoin adjust its mining difficulty? Answer with the whole number only.
In what year was the Human Genome Project declared complete? Answer with the four-digit year only.
In what year was the Trinity test, the first nuclear explosion? Answer with the four-digit year 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 euro coin denominations are there? Answer with the whole number only.
How many sides does the Australian 50-cent coin have? Answer with the whole number only.
Which 'Ancient Aliens' presenter became the 'Aliens' meme guy? Answer with the surname only.
Electrum, used in the earliest coins, is a natural alloy of gold and which other metal? Answer with the single word only, in lowercase.
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.
In what year was the Bitcoin genesis block mined? Answer with the four-digit year only.
On which blockchain was the $TRUMP memecoin launched? Answer with the name only.
Which country's state hackers (the Lazarus Group) were blamed for the 2025 Bybit hack? Answer with the country name only.