10 most difficult Europe riddles A list of ten (out of 174) Europe related questions that are the most often answered incorrectly Europe quiz How many countries use Italian as the official language?4. Italian is the official language in Italy, San Marino, Switzerland and the Holy See. Italian is also used in some parts of Slovenia and Croatia.very hard 8% 1120%2234%3336%448%Created by: globalquiz.org. Statistics based on 14512 answers in 2 languages »geography of Italy riddles » How many countries does Spain share a land border with?5. It's France, Portugal, Andorra, Morocco (Ceuta) and UK (Giblartar)very hard 16% 2226%3340%4417%5516%Created by: globalquiz.org. Statistics based on 5141 answers in 2 languages »geography of Spain riddles » What is the second largest city in Austria, after Vienna?Graz. The four largest cities in Austria are Vienna (1.8 million), Graz (269,000), Linz (193,000) and Salzburg (146,000).very hard 23% LinzLinz14%GrazGraz23%InnsbruckInnsbruck29%SalzburgSalzburg32%Created by: globalquiz.org. Statistics based on 1710 answers in 9 languages »Austria riddles » Which royal palace is that?Palacio Real (Madrid). Whit 162,000 sq meters of floor area, the Palacio Real is more than twice as large as Versailles, Buckingham Palace or Royal Palace in Stockholm. It is the largest functioning palace in Europe (however, king of Spain doesn't live here any more).very hard 25% Hofburg (Vienna)Hofburg (Vienna)19%Palacio Real (Madrid)Palacio Real (Madrid)25%Palace of VersaillesPalace of Versailles28%Royal Palace of StockholmRoyal Palace of Stockholm26%Created by: globalquiz.org. Statistics based on 4191 answers in 2 languages »architecture riddles » What is the largest affluent of the Baltic Sea in terms of mean discharge?Neva. Vistula is the longest of Baltic Sea affluents, but its mean discharge of 1080 m3/s is less than half of Neva (2500 m3/s). Other major Baltic Sea affluents are Daugawa nad Neman (both 678 m3/s).very hard 26% VistulaVistula44%NevaNeva26%DaugavaDaugava10%NemanNeman18%Created by: globalquiz.org. Statistics based on 3679 answers in 2 languages »Baltic Sea riddles » Where in the world is Catalan the single official language?In Andorra. Andorra is the only part of the world, where Catalan is the only official language. It is used by Andorran television and radio stations.very hard 28% in Cataloniain Catalonia30%in the Balearic Islandsin the Balearic Islands8%in Andorrain Andorra28%nowherenowhere33%Created by: globalquiz.org. Statistics based on 6673 answers in 4 languages »Spain riddles » Which European country capital was named Kristiania?Oslo. In 1624, during the reign of King Christian IV the city was destroyed by a fire. It was rebuilt and renamed Christiania in the king's honor. Following a spelling reform, it was known as Kristiania from 1877 to 1925, when its original name was restored.very hard 30% CopenhagenCopenhagen41%StockholmStockholm16%OsloOslo30%HelsinkiHelsinki12%Created by: Kasia. Statistics based on 13909 answers in 2 languages »cities of Scandinavia riddles » Which country was ruled by William the Sailor King?United Kingdom. During his youth, it was not expected that William, being the third son, would became a king. He served in the Royal Navy in the Caribbean. He inherited the throne at the age of 64, after his two elder brothers died without leaving legitimate successors.very hard 30% PortugalPortugal42%SpainSpain12%United KingdomUnited Kingdom30%NorwayNorway14%Created by: globalquiz.org. Statistics based on 6427 answers in 2 languages »kings of Europe riddles » Why does the church of Carmo Convent in Lisbon lack its roof?It was destroyed by earthquake. The convent was ruined in the 1755 Great Lisbon Earthquake, which destroyed the city, killed possibly 100.000 of its inhabitants and disrupted the colonial ambitions of Portugal. The church was left unrestored to remind the tragedy.very hard 31% it was never finishedit was never finished23%it was destroyed by earthquakeit was destroyed by earthquake31%it was destroyed by Moorsit was destroyed by Moors9%it symbols open way to Heavensit symbols open way to Heavens35%Created by: Kasia. Statistics based on 14511 answers in 2 languages »history of Portugal riddles » Which river flows into the Sea of Azov?Don River. Sea of Azov is a small and shallow sea, sometimes regarded as a northern extension of the Black Sea. Two large rivers, Don and Kuban, flow into it, and so the sea has low salinity and a high amount of biomass (such as green algae) that affects the water colour. It was known in Ottoman Turkish as the Balük-Denis ("Fish Sea") from its high productivity.very hard 31% VolgaVolga25%Amur RiverAmur River27%AngaraAngara15%Don RiverDon River31%Created by: globalquiz.org. Statistics based on 3706 answers in 9 languages »Ukraine riddles » Play Europe quiz and see all the questions.