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Who discovered X-rays in 1895? Answer with the surname only, in plain letters without diacritics.
Who discovered electromagnetic induction in 1831? Answer with the surname only.
How many companies are in the Dow Jones Industrial Average? Answer with the whole number only.
Who co-founded Coinbase and has served as its CEO? Answer with the surname only.
The Nikkei 225 is the benchmark stock index of which country? Answer with the country name only.
The S&P 500 is a price-weighted index. Answer true or false.
In what year was the Dow Jones Industrial Average first published? Answer with the four-digit year only.
In what year did Snap Inc. hold its initial public offering? Answer with the four-digit year only.
In what year was the US Banking Act known as Glass-Steagall passed? Answer with the four-digit year only.
Which venture capitalist coined the term 'unicorn' for startups valued at $1 billion or more? Answer with the surname only.
Which European Central Bank President pledged in 2012 to do 'whatever it takes' to preserve the euro? Answer with the surname only.
Who founded the venture capital firm Sequoia Capital in 1972? Answer with the surname only.
In which city is the European Central Bank headquartered? Answer with the city name only.
In what year did the Dow Jones Industrial Average first close above 10,000? Answer with the four-digit year only.
In what year did Britain's South Sea Bubble burst? Answer with the four-digit year only.
Which Instagram co-founder was born in Brazil? Answer with the surname only.
In what year did Nvidia hold its initial public offering? Answer with the four-digit year only.
How many EU member states used the euro as their currency as of mid-2025? Answer with the whole number only.
Stripe was co-founded by two brothers. Answer true or false.
In what year was Theranos dissolved? Answer with the four-digit year only.
In what year did Vanguard launch the first index mutual fund for individual investors? Answer with the four-digit year only.
In what year did the NASDAQ Composite reach its dot-com bubble peak? Answer with the four-digit year only.
According to widespread reports, how many billion US dollars did Groupon turn down from Google in 2010? Answer with the whole number only.
Which entrepreneur co-founded both Flickr and Slack? Answer with the surname only.
Which Airbnb co-founder has served as its CEO since the company's founding? Answer with the surname only.