21
How many EU member states currently use the euro as their sole official currency?
21 of the EU's member states use the euro, plus four European microstates that have adopted it unilaterally.
Source: Wikipedia, Euro (2024) en.wikipedia.org
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In what year was the name 'euro' officially adopted for the currency, years before it launched?

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21
21 of the EU's member states use the euro, plus four European microstates that have adopted it unilaterally.
Source: Wikipedia, Euro (2024) en.wikipedia.org
Andorra, Monaco, San Marino, Vatican
These four microstates have adopted the euro as their currency without being EU members.
Source: Wikipedia, Euro (2024) en.wikipedia.org
more than 1.3 trillion euros
Over 1.3 trillion euros' worth of banknotes and coins were in circulation by the end of 2019.
Source: Wikipedia, Euro (2019) en.wikipedia.org
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Each question asks you to guess a real number about the euro currency. After you answer you see how everyone else guessed, then the real figure and where it comes from.
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