| Regions of Italy | 0 | - | 4.92 | 75,691 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,529 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,097 |
| States of Germany | 0 | - | 4.96 | 152,145 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,941 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,007 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,755 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,096 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,621 |
| Departments of France | 0 | - | 4.93 | 53,943 |
| Italy Country Quiz | 0 | - | 4.82 | 123,283 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,194 |
| England or Wales? | 0 | - | 4.94 | 45,632 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,047 |
| Official European Union Languages | 0 | - | 4.97 | 238,274 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,701 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,788 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,457 |
| Roman Emperors | 0 | - | 4.95 | 119,767 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,925 |
| Italian Foods | 0 | - | 4.30 | 72,705 |
| History of Italy | 0 | - | 4.55 | 31,954 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,788 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,298 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,137 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,004 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,312 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,919 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,145 |
| Counties of England | 0 | - | 4.97 | 795,478 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,715 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,877 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,542 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,070 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,374 |
| Celtic Nations | 0 | - | 4.69 | 46,916 |
| Regions of France | 0 | - | 4.75 | 120,553 |
| France Immigration by Country | 0 | - | 4.70 | 76,446 |
| Famous Germans | 0 | - | 4.50 | 55,231 |
| German Groups of Things | 0 | - | 4.46 | 38,453 |
| Germany True or False? | 0 | - | 4.61 | 48,762 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,925 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,382 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,580 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,048 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,282 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,243 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,184 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,136 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,602 |
| Champions League Winners | 0 | - | 4.92 | 1,005,173 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,004 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,088 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,813 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,663 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,251 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,657 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,091 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,079 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,911 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,141 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,610 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,675 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,438 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,856 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,485 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,867 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,643 |
| Famous French People | 0 | - | 4.06 | 35,281 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,559 |
| Word Chain - France | 0 | - | 4.38 | 42,757 |
| Germany Country Quiz | 0 | - | 4.82 | 157,692 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,980 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,956 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,887 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,613 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,878 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,280 |
| The Mafia Quiz | 0 | - | 4.46 | 23,311 |
| Byzantine History | 0 | - | 4.91 | 28,771 |
| History of The Netherlands | 0 | - | 4.46 | 17,421 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,791 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,480 |
| Canary Islands | 0 | - | 4.62 | 17,470 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,829 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,639 |
| British Spellings | 0 | - | 4.06 | 99,422 |
| British Groups of Things | 0 | - | 4.25 | 82,848 |
| British Acronyms | 0 | - | 4.40 | 45,775 |
| UK Immigration by Country | 0 | - | 4.94 | 140,762 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,026 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,594 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,371 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,720 |
| Geography of Scotland | 0 | - | 4.63 | 21,603 |
| Elton John Quiz | 0 | - | 4.48 | 18,462 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,066 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,574 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,647 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,574 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,687 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,383 |
| Slavic Languages | 0 | - | 4.68 | 54,303 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,738 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,618 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,052 |
| France A-Z | 0 | - | 4.16 | 38,184 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,105 |
| French History Multiple Choice | 0 | - | 4.55 | 33,011 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,958 |
| History of Germany | 0 | - | 4.39 | 52,793 |
| The Trojan War | 0 | - | 4.83 | 39,672 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,583 |
| Name that Greek Letter | 0 | - | 4.93 | 323,238 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,649 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,588 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,794 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,365 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,851 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,710 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,876 |
| Roman Names for Places | 0 | - | 4.62 | 58,222 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,999 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,438 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,591 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,682 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,169 |
| Switzerland A-Z | 0 | - | 4.45 | 25,627 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,649 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,007 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,877 |
| Malta Country Quiz | 0 | - | 4.81 | 31,022 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,936 |
| History of Russia Quiz | 0 | - | 4.49 | 31,898 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,710 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,891 |
| History of Paris | 0 | - | 4.24 | 13,643 |
| Word Chain - Germany | 0 | - | 4.31 | 22,571 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,418 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,693 |
| Italian Inventions | 0 | - | 3.81 | 18,435 |
| Word Chain - Italy | 0 | - | 4.07 | 23,154 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,698 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,634 |
| Famous Nordic People | 0 | - | 4.34 | 20,082 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,188 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,332 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,520 |
| People on Money - England | 0 | - | 4.29 | 16,607 |
| Name a Valid English City | 0 | - | 4.19 | 16,708 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,091 |
| Imagine Lyrics | 0 | - | 4.53 | 43,241 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,895 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,001 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,604 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,739 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,459 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,174 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,225 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,274 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,312 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,625 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,532 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,851 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,223 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,152 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,232 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,896 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,186 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,205 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,434 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,389 |
| Capitals of French Regions | 0 | - | 4.45 | 16,052 |
| Kings of France Quiz | 0 | - | 4.20 | 32,696 |
| Capitals of German States | 0 | - | 4.74 | 28,940 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,301 |
| Ancient Greek Words | 0 | - | 4.93 | 111,440 |
| Serie A Champions | 0 | - | 4.29 | 58,189 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,066 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,169 |
| British to American Food Translation | 0 | - | 3.38 | 51,954 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,424 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,627 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,640 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,635 |
| Famous Scottish People | 0 | - | 4.22 | 18,391 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,835 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,818 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,220 |
| Australian Capitals | 0 | - | 4.92 | 62,708 |
| European Physical Geography | 0 | - | 4.26 | 33,484 |
| Geography of Russia | 0 | - | 4.57 | 21,517 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,923 |
| History of Austria | 0 | - | 4.70 | 17,849 |
| Austria Country Quiz | 0 | - | 4.57 | 59,677 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,724 |
| France Country Quiz | 0 | - | 4.70 | 134,857 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,124 |
