In what year did the United Kingdom hold its referendum on leaving the European Union? Answer with the four-digit year only.
In what substance is Han Solo frozen in The Empire Strikes Back? Answer with one lowercase word.
What is the ticker symbol of BlackRock's spot bitcoin ETF? Answer with the ticker only.
Who wrote and directed the original 1977 Star Wars film? Answer with the surname only.
How many ether must be deposited to activate a single Ethereum validator under the original staking rules? Answer with the whole number only.
On which ocean planet was the clone army created in Attack of the Clones? Answer with the name only.
In what year did Ethereum's London upgrade go live? Answer with the four-digit year only.
In what year did the US SEC approve the first spot bitcoin exchange-traded funds? Answer with the four-digit year only.
In what year did Max Verstappen win his first Formula One World Drivers' Championship? Answer with the four-digit year only.
Operation Praying Mantis in April 1988 retaliated for an Iranian mine striking which US Navy frigate? Answer with the ship's name without 'USS'.
In which city was the November 2013 interim nuclear deal, the Joint Plan of Action, agreed? Answer with the city name only.
In what year did JCPOA Implementation Day take place, when nuclear-related sanctions were lifted? Answer with the four-digit year only.
How many US servicemen were killed in the failed April 1980 hostage rescue mission (Operation Eagle Claw)? Answer with the whole number only.
Besides Iran and Iraq, which country did President Bush include in the 'axis of evil' in 2002? Answer with the country's common English name.
Who was the US special envoy who led the American side in the 2025 nuclear talks with Iran? Answer with the surname only.
