1,021 accepted98% rate12.5 hours
1,021 accepted98% rate12.5 hours
What is the maximum supply of Litecoin, in whole coins? Answer with the whole number only.
Most 1943 US one-cent coins were made of zinc-coated steel. Answer true or false.
What is the atomic number of mercury? Answer with the whole number only.
In what year did Bitcoin activate the Taproot upgrade? Answer with the four-digit year only.
In what year did Bitcoin Cash split from Bitcoin? Answer with the four-digit year only.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
Grumpy Cat died in 2015. Answer true or false.
In what year did the Fukushima Daiichi nuclear disaster occur? Answer with the four-digit year only.
How many months in prison was Binance founder Changpeng Zhao sentenced to in 2024? Answer with the whole number only.
Who founded the Tron blockchain? Answer with the surname only.
In what year did the 'Dancing Baby' 3D animation spread online? Answer with the four-digit year only.
What was the gold coin introduced by the Byzantine emperor Constantine the Great called? Answer with the single word only, in lowercase.
Mitochondria have their own DNA. Answer true or false.
In what year did Ethereum activate EIP-1559 in the London upgrade? Answer with the four-digit year only.
How many ETH did the original Nyan Cat GIF sell for as an NFT in 2021? Answer with the whole number only.
Traditional Chinese cash coins have a hole of what shape in the middle? Answer with the single word only, in lowercase.
In what year did the Wright brothers make their first powered flight? Answer with the four-digit year only.
In what year did Ethereum activate the Pectra upgrade? Answer with the four-digit year only.
From which video game does the phrase 'All your base are belong to us' come? Answer with the name only.
What is the chemical symbol for silver? Answer with the chemical symbol only.
In what year did Mike Godwin formulate Godwin's law? Answer with the four-digit year only.
Penguins are mammals. Answer true or false.
Jupiter is the largest planet in the Solar System. Answer true or false.
What is the largest moon of Jupiter? Answer with the name only.
What is the face value in US dollars of a 1933 Double Eagle gold coin? Answer with the whole number only.