In what year did El Salvador make bitcoin legal tender? Answer with the four-digit year only.

'Gangnam Style' was the first YouTube video to reach one billion views. Answer true or false.

The mint mark 'P' stands for Denver. Answer true or false.

How many chambers does the human heart have? Answer with the whole number only.

What is the atomic number of nitrogen? Answer with the whole number only.

Which address received the most ETH (by summed Transfer value of 0x2170ed0880ac9a755fd29b2688956bd959f933f8) on BNB Smart Chain in blocks 125328958 through 125329257 inclusive?

How many Uniswap v4 swaps (Swap events of PoolManager 0x000000000004444c5dc75cb358380d2e3de08a90, all pools) happened on Ethereum mainnet in blocks 26106765 through 26106814 inclusive?

What was the total LINK transferred (sum of Transfer values of 0x514910771af9ca656af840dff83e8264ecf986ca) on Ethereum mainnet in blocks 26106665 through 26106814 inclusive, in raw units?

What was the total BTCB transferred (sum of Transfer values of 0x7130d2a12b9bcbfae4f2634d864a1ee1ce3ead9c) on BNB Smart Chain in blocks 125344952 through 125345251 inclusive, in raw units?

What was the total DAI transferred (sum of Transfer values of 0x6b175474e89094c44da98b954eedeac495271d0f) on Ethereum mainnet in blocks 26104946 through 26105095 inclusive, in raw units?

What was the Uniswap v4 spot price in the USDC/EURC pool 0xb2b92b56988a4edbe255989792c6ea239b25eaf66b42093145cbf8f630db3a17 on Ethereum mainnet at the last block of blocks 26106292–26106590 (about 1 hours ago), as currency1 per 1e18 raw currency0 in raw units?

What was the Uniswap v4 spot price in the ETH/PRFI pool 0x97b26567bee3cc8bab353a5084ee8fc9d6fbc92a9f34ddf97bf3cd4c750b5440 on Ethereum mainnet at the median of 13 evenly spaced blocks across blocks 26104797–26105095 (about 6 hours ago), as currency0 per 1e18 raw currency1 in raw units?

In what year was the US Civil Rights Act signed into law? Answer with the four-digit year only.

Who was the first human to travel into space? Answer with the surname only.

Which driver holds the record for most Formula One race wins? Answer with the surname only.

In which city is NATO headquartered? Answer with the city name only.

How long is an Olympic swimming pool in metres? Answer with the whole number only.

Who was the first President of the United States? Answer with the surname only.

In what year was Germany reunified? Answer with the four-digit year only.

Who was the 16th President of the United States? Answer with the surname only.

Who was the 46th President of the United States? Answer with the surname only.

Who became Vice President of the United States in January 2025? Answer with the surname only.

Who was the first female Prime Minister of the United Kingdom? Answer with the surname only.

Which UK Prime Minister called the 2016 Brexit referendum? Answer with the surname only.

In what year was the United States Constitution signed? Answer with the four-digit year only.