10 most difficult Europe riddles A list of ten (out of 179) 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 14664 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 5288 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 24% LinzLinz13%GrazGraz24%InnsbruckInnsbruck29%SalzburgSalzburg32%Created by: globalquiz.org. Statistics based on 1910 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 4325 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 3848 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 6845 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 14272 answers in 2 languages »cities of Scandinavia riddles » Which Republic is regarded as the oldest?San Marino is the oldest republic in the world, it exists since getting independence from Roman Empire in 301 C.E.very hard 29% San MarinoSan Marino29%Venetian RepublicVenetian Republic39%Altai RepublicAltai Republic19%MaltaMalta11%Created by: Gromzey. Statistics based on 785 answers in 2 languages »records 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 14964 answers in 2 languages »history of Portugal 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 31% PortugalPortugal41%SpainSpain12%United KingdomUnited Kingdom31%NorwayNorway14%Created by: globalquiz.org. Statistics based on 6808 answers in 2 languages »kings of Europe riddles » Play Europe quiz and see all the questions.