Beyond the answers - interesting background to this quiz

Why Bangladesh has so many rivers

Bangladesh sits on one of the largest river deltas on Earth, formed by the Ganges, Brahmaputra and Meghna systems. Depending on how smaller distributaries and seasonal channels are counted, estimates commonly reach several hundred named rivers, with the figure of around 700 frequently cited. This dense network shapes agriculture, transport and daily life, but it also makes low-lying areas highly vulnerable to flooding and erosion.

The moon race between Jupiter and Saturn

For years Saturn held the title of planet with the most known moons, but recent discoveries have pushed Jupiter back into first place. The International Astronomical Union now recognises more than 90 confirmed moons orbiting Jupiter, with many more candidates awaiting confirmation. Because new small moons are discovered regularly, the ranking between the two gas giants can shift with each new announcement.

How Caledonia became a Roman name for Scotland

The Romans used Caledonia to describe the land north of their province of Britannia, roughly corresponding to modern Scotland. The name probably comes from a local tribe called the Caledones. Although Roman armies campaigned into the region, they never established lasting control, and Hadrian's Wall later marked the practical northern frontier of the empire.

Why capybaras are the heavyweight champions of rodents

The capybara, native to South America, is the largest living rodent, with adults commonly weighing between 35 and 65 kilograms. It belongs to the same broader group as guinea pigs and rock cavies. Capybaras are semi-aquatic, with slightly webbed feet and a calm social nature that has made them surprisingly popular in wildlife photography and even urban parks.

The Shavian roots of My Fair Lady

The musical My Fair Lady is based on Pygmalion, a play by George Bernard Shaw first performed in 1913. Shaw took the title from the Greek myth of a sculptor who falls in love with his own creation. The stage musical, with lyrics by Alan Jay Lerner and music by Frederick Loewe, premiered in 1956 and became one of the most successful Broadway productions of its era.