| European Countries by First 2 Letters | 0 | - | 4.95 | 527,235 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,147 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,692 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,552 |
| States of Germany | 0 | - | 4.96 | 150,777 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,250 |
| Regions of Italy | 0 | - | 4.92 | 75,026 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,021 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,942 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,618 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,594 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,778 |
| Official European Union Languages | 0 | - | 4.97 | 237,418 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,178 |
| Regions of France | 0 | - | 4.78 | 119,709 |
| France Immigration by Country | 0 | - | 4.72 | 76,111 |
| Departments of France | 0 | - | 4.93 | 53,126 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,079 |
| 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 | 34,600 |
| History of Paris | 0 | - | 4.24 | 13,627 |
| History of France | 0 | - | 4.59 | 56,459 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,690 |
| Word Chain - France | 0 | - | 4.38 | 42,647 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,638 |
| History of Italy | 0 | - | 4.55 | 31,874 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,364 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,536 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,057 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,288 |
| Celtic Nations | 0 | - | 4.69 | 46,855 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,018 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,975 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,019 |
| Capitals of French Regions | 0 | - | 4.45 | 16,010 |
| Counties of England | 0 | - | 4.97 | 791,516 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,741 |
| Famous Germans | 0 | - | 4.50 | 54,770 |
| German Groups of Things | 0 | - | 4.46 | 38,357 |
| Germany True or False? | 0 | - | 4.61 | 48,620 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,644 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,762 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,981 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,119 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,681 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,542 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,464 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,257 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,561 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,160 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,907 |
| History of Austria | 0 | - | 4.70 | 17,784 |
| Famous French People | 0 | - | 4.12 | 28,095 |
| Movies Set in France | 0 | - | 4.26 | 13,090 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,587 |
| French Inventions | 0 | - | 4.08 | 13,871 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,037 |
| 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 | 137,742 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,781 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,240 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,478 |
| Champions League Winners | 0 | - | 4.92 | 999,344 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,354 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,848 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,782 |
| 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 | 128,995 |
| 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 | 141,185 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,620 |
| 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 | 17,427 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,310 |
| 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 | 21,522 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,036 |
| 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 | 643,713 |
| Name that Greek Letter | 0 | - | 4.93 | 322,227 |
| History of Spain | 0 | - | 4.29 | 21,032 |
| Languages of Spain | 0 | - | 4.36 | 23,208 |
| British to American Word Translation | 0 | - | 3.74 | 254,855 |
| British Foods by Description | 0 | - | 3.94 | 48,278 |
| British and American Word Differences | 0 | - | 2.64 | 46,807 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,534 |
| Bridges of London | 0 | - | 4.17 | 10,069 |
| British Sport Trivia | 0 | - | 4.37 | 20,391 |
| Famous Welsh People | 0 | - | 4.21 | 9,788 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,057 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,450 |
| 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 | 22,510 |
| The Trojan War | 0 | - | 4.83 | 39,519 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,975 |
| Word Chain - Italy | 0 | - | 4.07 | 23,126 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,062 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,199 |
| Roman Emperors | 0 | - | 4.95 | 118,988 |
| Famous Nordic People | 0 | - | 4.34 | 19,940 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,558 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,668 |
| 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 | 277,908 |
| Australian Capitals | 0 | - | 4.92 | 62,636 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,604 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,067 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,037 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,913 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,382 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,193 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,974 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,748 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,124 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,500 |
| Europe Map Quiz | 0 | - | 5.00 | 4,741,108 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,080 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,720 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,031 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,069 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,725 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,680 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,065 |
| Kings of France Quiz | 0 | - | 4.20 | 32,608 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,794 |
| 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 | 497,700 |
| Ancient Greek Words | 0 | - | 4.93 | 110,982 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,735 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,981 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,635 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,500 |
| 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 | 434,659 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,761 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,784 |
| 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 | 53,247 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,010 |
| Geography of the British Empire | 0 | - | 4.48 | 39,552 |
| Champions League Top 4 | 0 | - | 4.77 | 134,597 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,023 |
| Asia Map Quiz | 0 | - | 4.99 | 909,596 |
| Countries of Africa | 0 | - | 5.00 | 2,516,623 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,128 |
| African East Coast | 0 | - | 4.96 | 95,378 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,238 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,074 |
| Australia Map Quiz | 0 | - | 4.94 | 342,998 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,330 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,769 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,406 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,629 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,938 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,373 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,800 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,042 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,662 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,621 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,310 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,036 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,377 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,473 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,603 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,085 |
| 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 | 214,738 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,065 |
