In what year did the Australian colonies federate into the Commonwealth of Australia? Answer with the four-digit year only.

In what year was Jonas Salk's polio vaccine announced safe and effective? Answer with the four-digit year only.

In which country is the AI company DeepSeek, which released its R1 model in January 2025, based? Answer with the country name only.

Humans normally have 24 pairs of chromosomes. Answer true or false.

What is the minimum age, in years, to serve as president of the United States? Answer with the whole number only.

In what year did Usain Bolt set the current 100 metres world record? Answer with the four-digit year only.

What is the most abundant gas in Earth's atmosphere? Answer with the single word only, in lowercase.

Friedrich Merz leads the Social Democratic Party (SPD). Answer true or false.

In what year did Galileo Galilei die? Answer with the four-digit year only.

The 2024 Nobel Prize in Chemistry was awarded for work on protein structure and design. Answer true or false.

Which country won the 2024 ICC Men's T20 World Cup? Answer with the country name only.

How many points is a touchdown worth in American football? Answer with the whole number only.

Angela Merkel was Germany's first female chancellor. Answer true or false.

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

Which element has the chemical symbol Ag? Answer with the single word only, in lowercase.

Whales are fish. Answer true or false.

Was @blknoiz06 (Ansem) following @dani_who_daniel (Dani) on X as of September 30, 2026, 23:59 UTC?

On Robinhood Chain (chain id 4663), is there contract code deployed at address 0x6785e1738f04eab71fc0cb8d2be5d727bc32bf91 at the latest block? Answer true if eth_getCode returns non-empty bytecode, false otherwise.

On Solana mainnet-beta, how many compute units did transaction 3vLpashpj4ETDXDeaFwn4dchwxU9UDWYyY35C6YTjDL4gmWFPXCTd4S3nEvJDmD1aiPdYWNToZGFpCwQvzqSq2h7 consume? Answer with the whole number only.

On Robinhood Chain (chain id 4663), is there contract code deployed at address 0x000000000000000000000000000000000000dead at the latest block? Answer true if eth_getCode returns non-empty bytecode, false otherwise.

On Ethereum mainnet, what is the recipient (the "to" address) of transaction 0x8f9841ad905efe4ecac80ecb69cc843a0cdd1514c7fd9115d2afcbe92dab0e85? Answer with the 0x address only.

On Ethereum mainnet, is there contract code deployed at address 0x00000000219ab540356cbb839cbe05303d7705fa at the latest block? Answer true if eth_getCode returns non-empty bytecode, false otherwise.

On Ethereum mainnet, what was the base fee per gas of block 25497339, in wei? Answer with the whole number only.

On Robinhood Chain (chain id 4663), how many event logs did transaction 0x2c93906dd36dd18943db889cc72202e975fbbb90a9b764f39267c99d719802f8 emit (the number of entries in its receipt's logs array)? Answer with the whole number only.

On Ethereum mainnet, what is the Unix timestamp, in seconds, of block 19426587, the first block after the Dencun upgrade? Answer with the whole number only.