| European Countries by First 2 Letters | 0 | - | 4.95 | 527,243 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,147 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,694 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,559 |
| States of Germany | 0 | - | 4.96 | 150,782 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,251 |
| Regions of Italy | 0 | - | 4.92 | 75,030 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,024 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,946 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,619 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,780 |
| Official European Union Languages | 0 | - | 4.97 | 237,420 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,180 |
| Regions of France | 0 | - | 4.78 | 119,712 |
| France Immigration by Country | 0 | - | 4.72 | 76,113 |
| Departments of France | 0 | - | 4.93 | 53,127 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,085 |
| Geography of the French Empire | 0 | - | 4.45 | 26,977 |
| The French Revolution | 0 | - | 4.46 | 23,843 |
| France Multiple Choice | 0 | - | 4.38 | 40,669 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,601 |
| History of Paris | 0 | - | 4.24 | 13,627 |
| History of France | 0 | - | 4.59 | 56,463 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,691 |
| Word Chain - France | 0 | - | 4.38 | 42,647 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,640 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,364 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,537 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,060 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,289 |
| Celtic Nations | 0 | - | 4.69 | 46,856 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,021 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,978 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,040 |
| Capitals of French Regions | 0 | - | 4.45 | 16,010 |
| Counties of England | 0 | - | 4.97 | 791,535 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,758 |
| Famous Germans | 0 | - | 4.50 | 54,773 |
| German Groups of Things | 0 | - | 4.46 | 38,358 |
| Germany True or False? | 0 | - | 4.61 | 48,620 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,645 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,763 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,984 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,121 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,682 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,545 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,467 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,257 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,564 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,162 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,912 |
| History of Austria | 0 | - | 4.70 | 17,784 |
| Famous French People | 0 | - | 4.12 | 28,096 |
| Movies Set in France | 0 | - | 4.26 | 13,090 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,588 |
| French Inventions | 0 | - | 4.08 | 13,871 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,038 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,413 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| The Portuguese Empire | 0 | - | 4.58 | 12,015 |
| American to British Word Translation | 0 | - | 4.13 | 137,755 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,781 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,241 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,480 |
| Champions League Winners | 0 | - | 4.92 | 999,362 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,363 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,892 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,790 |
| Presidents of France | 0 | - | 4.25 | 23,951 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,413 |
| England or Wales? | 0 | - | 4.94 | 45,445 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,999 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,490 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,618 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,186 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,626 |
| Slavic Languages | 0 | - | 4.68 | 54,103 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,499 |
| Italian Foods | 0 | - | 4.31 | 72,378 |
| The Mafia Quiz | 0 | - | 4.46 | 23,229 |
| History of The Netherlands | 0 | - | 4.46 | 17,350 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,309 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,312 |
| British Spellings | 0 | - | 4.07 | 99,329 |
| British Groups of Things | 0 | - | 4.25 | 82,744 |
| British Acronyms | 0 | - | 4.39 | 45,674 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,981 |
| Geography of Scotland | 0 | - | 4.63 | 21,523 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,037 |
| French Foods | 0 | - | 4.00 | 27,623 |
| France A-Z | 0 | - | 4.16 | 38,100 |
| Geography of Germany | 0 | - | 4.35 | 17,121 |
| History of Germany | 0 | - | 4.39 | 52,689 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,722 |
| Name that Greek Letter | 0 | - | 4.93 | 322,234 |
| History of Spain | 0 | - | 4.29 | 21,032 |
| Languages of Spain | 0 | - | 4.36 | 23,208 |
| British to American Word Translation | 0 | - | 3.74 | 254,856 |
| British Foods by Description | 0 | - | 3.94 | 48,278 |
| British and American Word Differences | 0 | - | 2.64 | 46,808 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,534 |
| Bridges of London | 0 | - | 4.17 | 10,069 |
| British Sport Trivia | 0 | - | 4.37 | 20,392 |
| Famous Welsh People | 0 | - | 4.21 | 9,788 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,066 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,452 |
| History of Russia Quiz | 0 | - | 4.49 | 31,828 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,617 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,136 |
| Word Chain - Germany | 0 | - | 4.31 | 22,511 |
| The Trojan War | 0 | - | 4.83 | 39,519 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,977 |
| Word Chain - Italy | 0 | - | 4.07 | 23,127 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,062 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,205 |
| Roman Emperors | 0 | - | 4.95 | 118,988 |
| Famous Nordic People | 0 | - | 4.34 | 19,941 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,558 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,671 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,269 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,489 |
| People on Money - England | 0 | - | 4.29 | 16,580 |
| Name a Valid English City | 0 | - | 4.19 | 16,657 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,466 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,915 |
| Australian Capitals | 0 | - | 4.92 | 62,636 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,607 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,069 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,038 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,917 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,384 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,196 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,976 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,749 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,146 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,504 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,189 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,081 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,720 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,034 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,071 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,731 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,688 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,071 |
| Kings of France Quiz | 0 | - | 4.20 | 32,608 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,796 |
| Capitals of German States | 0 | - | 4.74 | 28,877 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,167 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,708 |
| Ancient Greek Words | 0 | - | 4.93 | 110,983 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,740 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,981 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,694 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,525 |
| European Physical Geography | 0 | - | 4.26 | 33,409 |
| Geography of Russia | 0 | - | 4.57 | 21,461 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,828 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,391 |
| Tour de France Winners | 0 | - | 4.27 | 15,265 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,062 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,674 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,762 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,785 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,368 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,437 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,248 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,012 |
| Geography of the British Empire | 0 | - | 4.48 | 39,552 |
| Champions League Top 4 | 0 | - | 4.77 | 134,600 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,036 |
| Asia Map Quiz | 0 | - | 4.99 | 909,630 |
| Countries of Africa | 0 | - | 5.00 | 2,516,677 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,130 |
| African East Coast | 0 | - | 4.96 | 95,378 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,243 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,074 |
| Australia Map Quiz | 0 | - | 4.94 | 342,999 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,353 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,775 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,407 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,634 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,940 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,375 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,801 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,045 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,664 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,624 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,312 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,037 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,378 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,474 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,605 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,091 |
| European Geography A-Z | 0 | - | 4.28 | 49,081 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| The Only European Country ... | 0 | - | 4.91 | 214,746 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,069 |
