Problem: In the periodic table which metal follows lithium and sodium in the alkali metals (valency 1)?
Answer: potassium

Problem: What is the surname of the four sisters in 'Little Women' (1868-9)?
Answer: march

Problem: What style of art was exemplefied by Monet and Renoir?
Answer: impressionism

Problem: What significant law relating to literary and artistic works was first introduced in 1709?
Answer:
copyright