Beyond the answers - interesting background to this quiz

A river that refuses to stay in one country

The Danube is one of Europe's great waterways, and it is often described as the most international river in the world. It rises in Germany's Black Forest and eventually empties into the Black Sea, passing through or bordering ten countries along the way. That makes it a natural subject for geography quizzes, since few rivers touch so many different nations and cultures.

Why the Nile has always been a puzzle

The Nile flows northward for thousands of kilometres through northeastern Africa before reaching the Mediterranean. For centuries, its source was one of geography's great mysteries, and explorers risked their lives trying to trace it. Today it is still shared by many countries, which makes its water both a lifeline and a source of political tension.

The actor who traded Hollywood for Sacramento

Arnold Schwarzenegger built a career as an action star before running for governor of California in 2003. He won the recall election and served two terms, from 2003 to 2011. His move from bodybuilding to film to politics remains one of the more unusual career paths in modern public life.

Tanzania and its misleading neighbours

Tanzania sits on the eastern coast of Africa, home to Mount Kilimanjaro and part of Lake Victoria. Its name can be confused with Tasmania, the Australian island state, and Suriname, a small country in South America. That similarity is exactly what makes it a favourite in trivia rounds.

Music's word for speeding up

Accelerando is an Italian term meaning gradually getting faster, and it appears in sheet music as a direction to the performer. Italian has shaped musical vocabulary for centuries, giving us terms like andante for a walking pace and allegro for fast and lively. Each one tells musicians how a piece should feel, not just how it should sound.