From arctos and americanus to North America’s ‘other’ US, test your knowledge with the Saturday quiz

1 Who is the only British female singer with seven No 1 singles (including as a featured artist)?

2 What was the alias of 15th-century criminal chaplain Robert Stafford?

3 What became the world’s first $5tn company in 2025?

4 Which hat was banned in Turkey in 1925?