Beyond the answers - interesting background to this quiz

A concerto that paints the weather

Vivaldi's "The Four Seasons" is really four violin concertos, each one tied to a sonnet that describes its season. In "Spring" you can hear birdsong, a murmuring brook and a sudden thunderstorm; in "Winter" the strings shiver and stamp like cold feet. This kind of musical storytelling, where instruments imitate real sounds and moods, helped make the set one of the most recognisable pieces in classical music.

Molière, the playwright who mocked his own audience

Molière wrote "Tartuffe" in the 1660s, and the play's target was religious hypocrisy: a con man who poses as a pious adviser while scheming to take over a wealthy family's home. The satire was so pointed that the play was banned for a time before finally being allowed on stage. Molière acted in his own comedies, and he collapsed during a performance of "The Imaginary Invalid" and died shortly afterwards.

Carthage, from empire to archaeology

Ancient Carthage sat on the coast of North Africa, in what is now Tunisia. It grew into a powerful trading empire and fought Rome in the Punic Wars, most famously under the general Hannibal. Rome eventually destroyed the city in 146 BC, then rebuilt it as a Roman colony. Today its ruins are a UNESCO World Heritage Site near modern Tunis.

Two terms, one constitutional limit

Barack Obama served eight years as US president, from 2009 to 2017, winning elections in 2008 and 2012. The limit comes from the 22nd Amendment, ratified in 1951, which states that no one may be elected president more than twice. It was passed after Franklin D. Roosevelt won four elections, a record that will not be repeated under current rules.