Start by naming any country that France borders. Then name any country that borders any of those countries. Then keep going until there are no more countries left to name.
Which just goes to show that being a country isn't a black-and-white thing, like being pregnant or not pregnant is! The Faroes are treated as a country in many contexts, and as Danish in others. For example, the Faroes Islands are not a part of the EU, a foreign policy decision it took independently of Denmark. Many countries, including ones that appear in the Countries of the World quiz, have less autonomy than many larger nations enjoy.