| Cantons of Switzerland | 0 | - | 4.98 | 50,684 |
| Departments of France | 0 | - | 4.93 | 53,214 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,571 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,895 |
| States of Germany | 0 | - | 4.96 | 150,979 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,316 |
| Regions of Italy | 0 | - | 4.92 | 75,131 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,073 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,107 |
| Regions of France | 0 | - | 4.77 | 119,875 |
| France Immigration by Country | 0 | - | 4.72 | 76,157 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,424 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,831 |
| Official European Union Languages | 0 | - | 4.97 | 237,583 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,266 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,389 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,619 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,730 |
| Word Chain - France | 0 | - | 4.38 | 42,669 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,842 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,339 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,655 |
| French History Multiple Choice | 0 | - | 4.55 | 32,935 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Celtic Nations | 0 | - | 4.69 | 46,868 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,071 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,168 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,311 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,585 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,995 |
| Capitals of French Regions | 0 | - | 4.45 | 16,015 |
| France A-Z | 0 | - | 4.16 | 38,107 |
| Famous Germans | 0 | - | 4.50 | 54,809 |
| German Groups of Things | 0 | - | 4.46 | 38,373 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,179 |
| Germany True or False? | 0 | - | 4.61 | 48,648 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,726 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,699 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,838 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,023 |
| Switzerland A-Z | 0 | - | 4.45 | 25,568 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,141 |
| Counties of England | 0 | - | 4.97 | 792,134 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,806 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,495 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,282 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,598 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,553 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,646 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,270 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,109 |
| Famous French People | 0 | - | 4.12 | 28,122 |
| Movies Set in France | 0 | - | 4.26 | 13,095 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,698 |
| French Inventions | 0 | - | 4.08 | 13,874 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,100 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,114 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,303 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,584 |
| Champions League Winners | 0 | - | 4.92 | 1,000,283 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,284 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,448 |
| Geography of the French Empire | 0 | - | 4.45 | 26,989 |
| The French Revolution | 0 | - | 4.46 | 23,855 |
| France Multiple Choice | 0 | - | 4.38 | 40,675 |
| Kings of France Quiz | 0 | - | 4.20 | 32,623 |
| History of France | 0 | - | 4.59 | 56,562 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,805 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,411 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,611 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,634 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,637 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,983 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,640 |
| Presidents of France | 0 | - | 4.25 | 23,965 |
| Germany Country Quiz | 0 | - | 4.82 | 157,119 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,505 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,861 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,833 |
| Italy Country Quiz | 0 | - | 4.82 | 122,625 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,771 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,403 |
| Italian Foods | 0 | - | 4.31 | 72,422 |
| The Mafia Quiz | 0 | - | 4.46 | 23,242 |
| History of The Netherlands | 0 | - | 4.46 | 17,352 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,364 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,001 |
| Canary Islands | 0 | - | 4.61 | 17,432 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,380 |
| British Spellings | 0 | - | 4.07 | 99,343 |
| British Groups of Things | 0 | - | 4.25 | 82,758 |
| British Acronyms | 0 | - | 4.39 | 45,694 |
| UK Immigration by Country | 0 | - | 4.94 | 140,056 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,989 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,851 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,782 |
| Geography of Scotland | 0 | - | 4.63 | 21,536 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,162 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,499 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,624 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,248 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,777 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,093 |
| Slavic Languages | 0 | - | 4.68 | 54,141 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,517 |
| Tour de France Winners | 0 | - | 4.27 | 15,277 |
| History of Germany | 0 | - | 4.39 | 52,709 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,294 |
| Name that Greek Letter | 0 | - | 4.93 | 322,451 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,515 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,327 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,529 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,544 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,963 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,568 |
| Malta Country Quiz | 0 | - | 4.81 | 30,919 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,306 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,535 |
| History of Russia Quiz | 0 | - | 4.49 | 31,836 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,630 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,146 |
| French Foods | 0 | - | 4.00 | 27,632 |
| Word Chain - Germany | 0 | - | 4.31 | 22,519 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,719 |
| The Trojan War | 0 | - | 4.83 | 39,547 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,104 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,994 |
| History of Italy | 0 | - | 4.55 | 31,892 |
| Word Chain - Italy | 0 | - | 4.07 | 23,131 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,410 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,066 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,256 |
| Roman Emperors | 0 | - | 4.95 | 119,149 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,553 |
| Famous Nordic People | 0 | - | 4.34 | 19,969 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,564 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,081 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,291 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,495 |
| People on Money - England | 0 | - | 4.29 | 16,587 |
| Name a Valid English City | 0 | - | 4.19 | 16,667 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,492 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,083 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,658 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,112 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,093 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,966 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,429 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,286 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,019 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,798 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,429 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,584 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,094 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,109 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,751 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,062 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,101 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,788 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,856 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,212 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,819 |
| Capitals of German States | 0 | - | 4.74 | 28,887 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,182 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,145 |
| Ancient Greek Words | 0 | - | 4.93 | 111,057 |
| British to American Food Translation | 0 | - | 3.38 | 51,903 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,349 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,938 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,088 |
| Famous Scottish People | 0 | - | 4.22 | 18,351 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,007 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,189 |
| Australian Capitals | 0 | - | 4.92 | 62,649 |
| European Physical Geography | 0 | - | 4.26 | 33,417 |
| Geography of Russia | 0 | - | 4.57 | 21,471 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,844 |
| History of Austria | 0 | - | 4.70 | 17,794 |
| Austria Country Quiz | 0 | - | 4.57 | 59,515 |
| France Country Quiz | 0 | - | 4.70 | 134,433 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,026 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,424 |
| Ligue 1 Champions | 0 | - | 4.19 | 48,253 |
| Embarrassing Chapters in French History | 0 | - | 3.65 | 20,067 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,422 |
| Greece Country Quiz | 0 | - | 4.74 | 65,950 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,976 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,816 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,595 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,343 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,196 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,954 |
| The Vikings! | 0 | - | 4.46 | 28,282 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,558 |
| The Portuguese Empire | 0 | - | 4.58 | 12,026 |
| Spain Country Quiz | 0 | - | 4.45 | 127,995 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,109 |
| American to British Word Translation | 0 | - | 4.13 | 138,163 |
