| European Countries by First 2 Letters | 0 | - | 4.95 | 532,596 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,702 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,466 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,879 |
| States of Germany | 0 | - | 4.95 | 154,594 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,709 |
| Regions of Italy | 0 | - | 4.92 | 77,120 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,819 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,361 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,780 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,756 |
| Official European Union Languages | 0 | - | 4.97 | 239,851 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,682 |
| Regions of France | 0 | - | 4.70 | 122,150 |
| France Immigration by Country | 0 | - | 4.70 | 76,948 |
| Departments of France | 0 | - | 4.93 | 55,208 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,008 |
| Geography of the French Empire | 0 | - | 4.45 | 27,220 |
| The French Revolution | 0 | - | 4.47 | 24,149 |
| France Multiple Choice | 0 | - | 4.39 | 40,855 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,099 |
| History of Paris | 0 | - | 4.24 | 13,682 |
| History of France | 0 | - | 4.61 | 57,641 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,328 |
| Famous French People | 0 | - | 4.05 | 36,118 |
| Word Chain - France | 0 | - | 4.38 | 42,943 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,063 |
| History of Italy | 0 | - | 4.55 | 32,155 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,396 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,827 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,429 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,510 |
| Celtic Nations | 0 | - | 4.61 | 47,105 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,043 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,836 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,974 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Counties of England | 0 | - | 4.97 | 803,188 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,873 |
| Famous Germans | 0 | - | 4.50 | 55,804 |
| German Groups of Things | 0 | - | 4.47 | 38,641 |
| Germany True or False? | 0 | - | 4.61 | 49,026 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,500 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,410 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,795 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,413 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,849 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,997 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,794 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,759 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,912 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,007 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,588 |
| History of Austria | 0 | - | 4.70 | 17,977 |
| Movies Set in France | 0 | - | 4.26 | 13,153 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,676 |
| French Inventions | 0 | - | 4.10 | 13,929 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,838 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| American to British Word Translation | 0 | - | 4.14 | 139,720 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,065 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,547 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,093 |
| Champions League Winners | 0 | - | 4.92 | 1,016,500 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,949 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,977 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,987 |
| Presidents of France | 0 | - | 4.25 | 24,344 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,751 |
| England or Wales? | 0 | - | 4.94 | 45,977 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,209 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,750 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,721 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,509 |
| Slavic Languages | 0 | - | 4.67 | 54,708 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,743 |
| Italian Foods | 0 | - | 4.30 | 73,294 |
| The Mafia Quiz | 0 | - | 4.46 | 23,440 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,633 |
| Canary Islands | 0 | - | 4.62 | 17,543 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,087 |
| British Spellings | 0 | - | 4.06 | 99,610 |
| British Groups of Things | 0 | - | 4.26 | 83,022 |
| British Acronyms | 0 | - | 4.40 | 45,946 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,113 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,136 |
| Geography of Scotland | 0 | - | 4.63 | 21,745 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,968 |
| French Foods | 0 | - | 4.00 | 27,776 |
| France A-Z | 0 | - | 4.16 | 38,342 |
| Geography of Germany | 0 | - | 4.35 | 17,288 |
| History of Germany | 0 | - | 4.39 | 52,978 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,131 |
| Name that Greek Letter | 0 | - | 4.93 | 325,032 |
| History of Spain | 0 | - | 4.23 | 21,165 |
| Languages of Spain | 0 | - | 4.36 | 23,441 |
| British to American Word Translation | 0 | - | 3.74 | 255,350 |
| British Foods by Description | 0 | - | 3.94 | 48,392 |
| British and American Word Differences | 0 | - | 2.63 | 46,930 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,226 |
| Bridges of London | 0 | - | 4.17 | 10,146 |
| British Sport Trivia | 0 | - | 4.39 | 20,532 |
| Famous Welsh People | 0 | - | 4.34 | 11,697 |
| Malta Country Quiz | 0 | - | 4.81 | 31,239 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,871 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,877 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,351 |
| Word Chain - Germany | 0 | - | 4.31 | 22,686 |
| The Trojan War | 0 | - | 4.83 | 40,002 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,998 |
| Word Chain - Italy | 0 | - | 4.07 | 23,224 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,166 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,607 |
| Roman Emperors | 0 | - | 4.95 | 121,250 |
| Famous Nordic People | 0 | - | 4.34 | 20,312 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,645 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,103 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,416 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,580 |
| People on Money - England | 0 | - | 4.29 | 16,645 |
| Name a Valid English City | 0 | - | 4.19 | 16,830 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,775 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,452 |
| Australian Capitals | 0 | - | 4.92 | 62,837 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,248 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,649 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,100 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,072 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,170 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,640 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,204 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,781 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,109 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,691 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,194 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,533 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,194 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,469 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,436 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,503 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,554 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,751 |
| Kings of France Quiz | 0 | - | 4.21 | 32,935 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,154 |
| Capitals of German States | 0 | - | 4.74 | 29,074 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,547 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,868 |
| Ancient Greek Words | 0 | - | 4.93 | 112,514 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,392 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,834 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,620 |
| European Physical Geography | 0 | - | 4.26 | 33,599 |
| Geography of Russia | 0 | - | 4.57 | 21,604 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,137 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 34,164 |
| Tour de France Winners | 0 | - | 4.27 | 15,521 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,174 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,907 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,523 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,393 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,386 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,461 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,821 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,467 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,275 |
| Geography of the British Empire | 0 | - | 4.48 | 39,849 |
| Champions League Top 4 | 0 | - | 4.78 | 139,185 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,693 |
| Asia Map Quiz | 0 | - | 4.99 | 925,476 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,084 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,485 |
| Australia Map Quiz | 0 | - | 4.95 | 346,223 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,810 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,019 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,942 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,884 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,296 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,311 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,576 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,282 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,044 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,640 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,282 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,665 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,649 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,902 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,951 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,205 |
| European Geography A-Z | 0 | - | 4.29 | 49,488 |
| Country Codes of Europe | 0 | - | 3.45 | 13,836 |
| The Only European Country ... | 0 | - | 4.91 | 219,143 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,584 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,260 |
| Austria... or Australia? | 0 | - | 4.67 | 104,775 |
