Problem: Known as the 'City of Roses', which is the most populous city in the US state of Oregon?
Answer: portland

Problem: After Paris, which is the next largest French speaking city?
Answer: montreal

Problem: "Which metal is mainly derived from the ore ""haematite""?"
Answer: iron

Problem: Which 1944 work of Friedrich Hayek is among the most influential expositions of classical liberalism and is stated as the single book that significantly shaped the political ideologies of Margaret Thatcher and Ronald Reagan?
Answer:
road to serfdom