1,438 accepted98% rate28.7 hours
1,438 accepted98% rate28.7 hours
The Sun is a red dwarf star. Answer true or false.
Whose portrait appears on the obverse of the US quarter? Answer with the surname only.
Which country issues the Maple Leaf bullion coins? Answer with the country name only.
In what year was the Vine app shut down? Answer with the four-digit year only.
The first coins were made in ancient Lydia. Answer true or false.
Bitcoin's total supply is capped at 21 million coins. Answer true or false.
Neutrons carry no electric charge. Answer true or false.
What is the atomic number of gold? Answer with the whole number only.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
Which word was Collins Dictionary Word of the Year for 2024? Answer with the single word only, in lowercase.
In what year was the Coinage Act that established the United States Mint passed? Answer with the four-digit year only.
The word 'meme' was coined in a book about evolution. Answer true or false.
In what year did Ethereum complete the Merge to proof of stake? Answer with the four-digit year only.
In what year did Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.
In what year did Bitcoin activate the Taproot upgrade? Answer with the four-digit year only.
How many shillings was the British guinea fixed at from 1717? Answer with the whole number only.
In what year did Bitcoin Cash split from Bitcoin? Answer with the four-digit year only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
In what year did Ethereum activate the Pectra upgrade? Answer with the four-digit year only.
What is the chemical symbol for silver? Answer with the chemical symbol only.
What is the face value in US dollars of a 1933 Double Eagle gold coin? Answer with the whole number only.
Jupiter is the largest planet in the Solar System. Answer true or false.
Harambe was a chimpanzee. Answer true or false.
What is Litecoin's target block time in seconds? Answer with the whole number only.
What is the SI base unit of electric current? Answer with the single word only, in lowercase.