| Cantons of Switzerland | 0 | - | 4.98 | 51,414 |
| Departments of France | 0 | - | 4.93 | 54,457 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,558 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,559 |
| States of Germany | 0 | - | 4.95 | 153,166 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,280 |
| Regions of Italy | 0 | - | 4.92 | 76,231 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,421 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,393 |
| Regions of France | 0 | - | 4.72 | 121,227 |
| France Immigration by Country | 0 | - | 4.70 | 76,681 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,614 |
| England or Wales? | 0 | - | 4.94 | 45,794 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,320 |
| Official European Union Languages | 0 | - | 4.97 | 238,912 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,127 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,016 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,851 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,107 |
| Famous French People | 0 | - | 4.07 | 35,846 |
| Word Chain - France | 0 | - | 4.38 | 42,840 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,357 |
| Switzerland Immigration by Country | 0 | - | 4.68 | 29,830 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,914 |
| French History Multiple Choice | 0 | - | 4.55 | 33,125 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,429 |
| Celtic Nations | 0 | - | 4.69 | 46,996 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,535 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,216 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,974 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,645 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,088 |
| Capitals of French Regions | 0 | - | 4.45 | 16,108 |
| France A-Z | 0 | - | 4.16 | 38,264 |
| Famous Germans | 0 | - | 4.50 | 55,525 |
| German Groups of Things | 0 | - | 4.46 | 38,524 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,471 |
| Germany True or False? | 0 | - | 4.61 | 48,891 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,193 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,138 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,787 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,496 |
| Switzerland A-Z | 0 | - | 4.45 | 25,687 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,339 |
| Counties of England | 0 | - | 4.97 | 798,835 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,440 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,691 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,147 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,386 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,245 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,296 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,992 |
| Movies Set in France | 0 | - | 4.26 | 13,131 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,817 |
| French Inventions | 0 | - | 4.10 | 13,908 |
| History of Paris | 0 | - | 4.24 | 13,659 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,150 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,149 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,151 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,146 |
| Champions League Winners | 0 | - | 4.92 | 1,009,818 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,575 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,935 |
| Geography of the French Empire | 0 | - | 4.45 | 27,155 |
| The French Revolution | 0 | - | 4.47 | 24,063 |
| France Multiple Choice | 0 | - | 4.39 | 40,773 |
| Kings of France Quiz | 0 | - | 4.20 | 32,816 |
| History of France | 0 | - | 4.59 | 57,269 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,210 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,152 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,752 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,907 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,360 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,619 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,772 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,144 |
| Presidents of France | 0 | - | 4.25 | 24,204 |
| Germany Country Quiz | 0 | - | 4.83 | 158,172 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,619 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,073 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,653 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,487 |
| Italian Foods | 0 | - | 4.30 | 72,935 |
| The Mafia Quiz | 0 | - | 4.46 | 23,369 |
| History of The Netherlands | 0 | - | 4.46 | 17,482 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,115 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,205 |
| Canary Islands | 0 | - | 4.62 | 17,491 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,259 |
| British Spellings | 0 | - | 4.06 | 99,507 |
| British Groups of Things | 0 | - | 4.25 | 82,907 |
| British Acronyms | 0 | - | 4.40 | 45,849 |
| UK Immigration by Country | 0 | - | 4.94 | 141,156 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,054 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,163 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,975 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,940 |
| Geography of Scotland | 0 | - | 4.63 | 21,656 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,987 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,644 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,674 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,870 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,591 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,631 |
| Slavic Languages | 0 | - | 4.67 | 54,466 |
| Tour de France Winners | 0 | - | 4.27 | 15,414 |
| History of Germany | 0 | - | 4.39 | 52,898 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,853 |
| Name that Greek Letter | 0 | - | 4.93 | 324,158 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,664 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,294 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,515 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,652 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,504 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,761 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,042 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,870 |
| Malta Country Quiz | 0 | - | 4.81 | 31,115 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,591 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,345 |
| History of Russia Quiz | 0 | - | 4.47 | 31,949 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,773 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,259 |
| French Foods | 0 | - | 4.00 | 27,724 |
| Word Chain - Germany | 0 | - | 4.31 | 22,614 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,197 |
| The Trojan War | 0 | - | 4.83 | 39,797 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,236 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,502 |
| History of Italy | 0 | - | 4.55 | 32,053 |
| Word Chain - Italy | 0 | - | 4.07 | 23,179 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,951 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,126 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,649 |
| Roman Emperors | 0 | - | 4.95 | 120,388 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,719 |
| Famous Nordic People | 0 | - | 4.34 | 20,166 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,623 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,295 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,359 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,544 |
| People on Money - England | 0 | - | 4.29 | 16,623 |
| Name a Valid English City | 0 | - | 4.19 | 16,746 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,688 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,923 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,330 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,724 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,279 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,957 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,279 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,907 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,180 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,987 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,264 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,809 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,903 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,353 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,009 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,299 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,292 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,866 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,545 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,022 |
| Capitals of German States | 0 | - | 4.74 | 28,990 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,399 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,860 |
| Ancient Greek Words | 0 | - | 4.93 | 111,898 |
| British to American Food Translation | 0 | - | 3.38 | 51,982 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,490 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,998 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,079 |
| Famous Scottish People | 0 | - | 4.22 | 18,412 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,667 |
| Oceania Map Quiz | 0 | - | 4.98 | 650,681 |
| Australian Capitals | 0 | - | 4.92 | 62,754 |
| European Physical Geography | 0 | - | 4.26 | 33,541 |
| Geography of Russia | 0 | - | 4.57 | 21,555 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,017 |
| History of Austria | 0 | - | 4.70 | 17,903 |
| Austria Country Quiz | 0 | - | 4.57 | 59,838 |
| France Country Quiz | 0 | - | 4.70 | 135,177 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,234 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,838 |
| Ligue 1 Champions | 0 | - | 4.21 | 48,636 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,139 |
| Greece Country Quiz | 0 | - | 4.74 | 66,363 |
| Italy Country Quiz | 0 | - | 4.77 | 123,590 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,987 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,276 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,821 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,565 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,652 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,549 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,024 |
| The Portuguese Empire | 0 | - | 4.58 | 12,082 |
| Spain Country Quiz | 0 | - | 4.44 | 128,768 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,455 |
| American to British Word Translation | 0 | - | 4.14 | 139,305 |
