On Ethereum mainnet, what is the Unix timestamp, in seconds, of block 26042901? Answer with the whole number only.
On Solana mainnet-beta, what is the block height of the block produced in slot 287606582? Answer with the whole number only.
Which river flows through Paris? Answer with the river name only, without the word River.
The summit of Mount Everest lies on the border between Nepal and China. Answer true or false.
How many spacetime dimensions does superstring theory require? Answer with the whole number only.
What is the capital of Turkey? Answer with the city name only.
In what year was the Kepler space telescope launched? Answer with the four-digit year only.
In what year did Johannes Kepler publish Astronomia nova? Answer with the four-digit year only.
In what year did South Sudan become independent? Answer with the four-digit year only.
What is the capital of Iran? Answer with the city name only.
What was the name of the Soviet and Russian space station that was deorbited in 2001? Answer with the name only.
How many Nobel Prizes in Physics did John Bardeen win? Answer with the whole number only.
What is the capital of Vietnam? Answer with the city name only.
In what year did Alessandro Volta announce the voltaic pile, the first electric battery? Answer with the four-digit year only.
Bolivia is landlocked. Answer true or false.