| European Countries by First 2 Letters | 0 | - | 4.95 | 526,505 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,056 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,713 |
| States of Germany | 0 | - | 4.96 | 150,195 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,070 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,550 |
| Regions of Italy | 0 | - | 4.92 | 74,794 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,866 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,432 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,249 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,533 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,608 |
| Official European Union Languages | 0 | - | 4.97 | 236,992 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,732 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,398 |
| The Vikings! | 0 | - | 4.46 | 28,250 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,558 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,577 |
| History of Italy | 0 | - | 4.55 | 31,830 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,198 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,990 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,248 |
| Celtic Nations | 0 | - | 4.69 | 46,820 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,887 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,941 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,069 |
| Regions of France | 0 | - | 4.78 | 119,340 |
| France Immigration by Country | 0 | - | 4.72 | 75,988 |
| Famous Germans | 0 | - | 4.50 | 54,647 |
| German Groups of Things | 0 | - | 4.46 | 38,310 |
| Germany True or False? | 0 | - | 4.61 | 48,542 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,484 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,575 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,854 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,069 |
| Counties of England | 0 | - | 4.97 | 789,624 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,020 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,408 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,227 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,360 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,267 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,300 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,855 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,123 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,267 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,774 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,064 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,165 |
| Champions League Winners | 0 | - | 4.92 | 996,898 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,171 |
| History of Austria | 0 | - | 4.70 | 17,759 |
| Geography of the French Empire | 0 | - | 4.48 | 26,943 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| France Multiple Choice | 0 | - | 4.38 | 40,643 |
| History of France | 0 | - | 4.59 | 56,129 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,720 |
| The Portuguese Empire | 0 | - | 4.54 | 11,996 |
| American to British Word Translation | 0 | - | 4.06 | 132,604 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,725 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,662 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,341 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,264 |
| Departments of France | 0 | - | 4.93 | 52,880 |
| Word Chain - France | 0 | - | 4.38 | 42,587 |
| Italian Foods | 0 | - | 4.31 | 72,223 |
| The Mafia Quiz | 0 | - | 4.46 | 23,212 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,381 |
| History of The Netherlands | 0 | - | 4.46 | 17,320 |
| Canary Islands | 0 | - | 4.61 | 17,407 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,180 |
| British Spellings | 0 | - | 4.07 | 99,251 |
| British Groups of Things | 0 | - | 4.25 | 82,698 |
| British Acronyms | 0 | - | 4.39 | 45,629 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,952 |
| Geography of Scotland | 0 | - | 4.63 | 21,491 |
| England or Wales? | 0 | - | 4.94 | 45,348 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,575 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,455 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,605 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,023 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,134 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,864 |
| Slavic Languages | 0 | - | 4.67 | 54,004 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| French History Multiple Choice | 0 | - | 4.55 | 32,883 |
| Geography of Germany | 0 | - | 4.35 | 17,091 |
| History of Germany | 0 | - | 4.39 | 52,624 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,239 |
| Name that Greek Letter | 0 | - | 4.94 | 321,773 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,437 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,261 |
| History of Spain | 0 | - | 4.29 | 21,006 |
| Languages of Spain | 0 | - | 4.36 | 23,160 |
| British to American Word Translation | 0 | - | 3.74 | 254,354 |
| British Foods by Description | 0 | - | 3.94 | 48,255 |
| British and American Word Differences | 0 | - | 2.67 | 46,564 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,515 |
| Bridges of London | 0 | - | 4.17 | 10,064 |
| British Sport Trivia | 0 | - | 4.37 | 20,370 |
| Famous Welsh People | 0 | - | 4.21 | 9,776 |
| Malta Country Quiz | 0 | - | 4.81 | 30,843 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,624 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,183 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,581 |
| Famous French People | 0 | - | 4.12 | 27,967 |
| Movies Set in France | 0 | - | 4.26 | 13,077 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,629 |
| History of Paris | 0 | - | 4.24 | 13,617 |
| Word Chain - Germany | 0 | - | 4.31 | 22,479 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,492 |
| The Trojan War | 0 | - | 4.83 | 39,453 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,623 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,391 |
| Word Chain - Italy | 0 | - | 4.07 | 23,093 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,046 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,080 |
| Roman Emperors | 0 | - | 4.95 | 118,553 |
| Famous Nordic People | 0 | - | 4.34 | 19,871 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,691 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,547 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,526 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,244 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,473 |
| People on Money - England | 0 | - | 4.29 | 16,567 |
| Name a Valid English City | 0 | - | 4.19 | 16,633 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,346 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,175 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,430 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,934 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,877 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,742 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,249 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,949 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,697 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,654 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,041 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,339 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,923 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,007 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,638 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,961 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,004 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,616 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,173 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,630 |
| Capitals of French Regions | 0 | - | 4.45 | 15,988 |
| Capitals of German States | 0 | - | 4.74 | 28,816 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,107 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,564 |
| Ancient Greek Words | 0 | - | 4.92 | 110,740 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,277 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,195 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,397 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,967 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,648 |
| Australian Capitals | 0 | - | 4.92 | 62,596 |
| European Physical Geography | 0 | - | 4.26 | 33,379 |
| Geography of Russia | 0 | - | 4.57 | 21,433 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,792 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,717 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,643 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,247 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,192 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,401 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,200 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,845 |
| Geography of the British Empire | 0 | - | 4.48 | 39,495 |
| Champions League Top 4 | 0 | - | 4.77 | 133,948 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,250 |
| Asia Map Quiz | 0 | - | 4.99 | 907,481 |
| Countries of Africa | 0 | - | 5.00 | 2,509,369 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,863 |
| African East Coast | 0 | - | 4.96 | 95,093 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,988 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,829 |
| Australia Map Quiz | 0 | - | 4.94 | 342,590 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,657 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,241 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,237 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,109 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,432 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,243 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,689 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,924 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,306 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,513 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,188 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,942 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,308 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,413 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,527 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,668 |
| European Geography A-Z | 0 | - | 4.28 | 49,012 |
| Country Codes of Europe | 0 | - | 3.46 | 13,656 |
| The Only European Country ... | 0 | - | 4.91 | 213,986 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,645 |
