| European Countries by First 2 Letters | 0 | - | 4.96 | 516,843 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,928 |
| States of Germany | 0 | - | 4.95 | 143,110 |
| Germany Immigration by Country | 0 | - | 4.86 | 77,537 |
| States of the German Confederation in 1848 | 0 | - | 4.88 | 30,213 |
| Counties of Ireland | 0 | - | 4.91 | 181,038 |
| Regions of Italy | 0 | - | 4.91 | 70,796 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 36,147 |
| Regions of Spain Quiz | 0 | - | 4.89 | 107,919 |
| Cantons of Switzerland | 0 | - | 4.97 | 47,239 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,964 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 66,672 |
| Official European Union Languages | 0 | - | 4.98 | 231,759 |
| European Countries in their Native Language | 0 | - | 4.99 | 153,657 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 416,272 |
| The Vikings! | 0 | - | 4.46 | 27,987 |
| Europe Geography Decoder | 0 | - | 4.86 | 68,122 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,789 |
| Italy Multiple Choice | 0 | - | 4.74 | 101,225 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,954 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,523 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 22,728 |
| Celtic Nations | 0 | - | 4.77 | 46,338 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.85 | 85,284 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 302,632 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 155,114 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,056 |
| Counties of England | 0 | - | 4.97 | 767,951 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 335,351 |
| Regions of France | 0 | - | 4.74 | 114,568 |
| France Immigration by Country | 0 | - | 4.73 | 74,497 |
| Famous Germans | 0 | - | 4.44 | 41,460 |
| German Groups of Things | 0 | - | 4.46 | 37,824 |
| Germany True or False? | 0 | - | 4.63 | 47,717 |
| Largest Islands of Greece | 0 | - | 4.59 | 45,763 |
| Famous Italians by Clue | 0 | - | 4.45 | 85,401 |
| Provinces of the Netherlands | 0 | - | 4.77 | 38,722 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,588 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 99,936 |
| Catholic Countries in Europe | 0 | - | 4.83 | 91,746 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,128 |
| European Geography By Letter - B #2 | 0 | - | 4.80 | 70,898 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 76,409 |
| Federal Subjects of Russia | 0 | - | 4.94 | 136,336 |
| History of Austria | 0 | - | 4.69 | 17,410 |
| Regions of France Map Quiz | 0 | - | 4.96 | 139,324 |
| Geography of the French Empire | 0 | - | 4.51 | 26,491 |
| The French Revolution | 0 | - | 4.46 | 23,170 |
| France Multiple Choice | 0 | - | 4.37 | 40,240 |
| History of France Quiz | 0 | - | 4.56 | 42,240 |
| States of Germany Map Quiz | 0 | - | 4.91 | 128,606 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 23,061 |
| History of Italy | 0 | - | 4.54 | 31,420 |
| Sweden Immigration by Country | 0 | - | 4.54 | 54,606 |
| The Portuguese Empire | 0 | - | 4.54 | 11,823 |
| American to British Word Translation | 0 | - | 4.01 | 115,620 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,188 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 90,966 |
| Counties of England Map Quiz | 0 | - | 4.97 | 301,506 |
| Champions League Winners | 0 | - | 4.91 | 970,030 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 223,555 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 267,917 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 159,605 |
| Departments of France | 0 | - | 4.92 | 48,088 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,728 |
| England or Wales? | 0 | - | 4.94 | 44,256 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 124,216 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,850 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.79 | 41,381 |
| Word Scramble - European Countries | 0 | - | 4.73 | 137,565 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 107,914 |
| Slavic Languages | 0 | - | 4.64 | 52,718 |
| Word Chain - France | 0 | - | 4.38 | 42,055 |
| Capitals of Italian Regions | 0 | - | 4.62 | 35,975 |
| Italian Foods | 0 | - | 4.30 | 70,386 |
| The Mafia Quiz | 0 | - | 4.46 | 22,870 |
| History of The Netherlands | 0 | - | 4.46 | 16,883 |
| Famous Nordic People | 0 | - | 4.41 | 11,097 |
| Spanish Immigration by Country | 0 | - | 4.61 | 54,594 |
| Canary Islands | 0 | - | 4.61 | 17,200 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 27,606 |
| British Spellings Quiz | 0 | - | 4.07 | 98,175 |
| British Groups of Things | 0 | - | 4.25 | 82,274 |
| British Acronyms | 0 | - | 4.39 | 45,125 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,647 |
| Geography of Scotland | 0 | - | 4.63 | 21,005 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 62,855 |
| French Geography Quiz #1 | 0 | - | 4.88 | 33,721 |
| Geography of Germany | 0 | - | 4.33 | 16,724 |
| History of Germany | 0 | - | 4.38 | 52,004 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 624,636 |
| History of Ireland | 0 | - | 4.39 | 23,365 |
| History of Spain Quiz | 0 | - | 4.29 | 20,728 |
| Languages of Spain | 0 | - | 4.36 | 22,745 |
| British to American Word Translation | 0 | - | 3.75 | 252,347 |
| British Foods | 0 | - | 3.88 | 47,991 |
| British and American Word Differences | 0 | - | 2.68 | 45,701 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,271 |
| Bridges of London | 0 | - | 4.17 | 9,898 |
| British Sport Trivia | 0 | - | 4.34 | 20,084 |
| Famous Welsh People | 0 | - | 4.21 | 9,642 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 262,108 |
| Top European Languages on a Map | 0 | - | 4.77 | 128,099 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,038 |
| Famous French People | 0 | - | 4.14 | 24,918 |
| Movies Set in France | 0 | - | 4.26 | 12,940 |
| French Inventions | 0 | - | 4.08 | 13,743 |
| History of Paris | 0 | - | 4.24 | 13,499 |
| Word Chain - Germany | 0 | - | 4.32 | 22,209 |
| The Trojan War | 0 | - | 4.81 | 38,454 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 105,600 |
| Word Chain - Italy | 0 | - | 4.07 | 22,867 |
| Embarrassing Chapters in Italian History | 0 | - | 4.23 | 11,819 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 82,409 |
| Roman Emperors | 0 | - | 4.96 | 112,214 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,333 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,326 |
| Invasions of Great Britain | 0 | - | 4.51 | 58,585 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,009 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,272 |
| People on Money - England | 0 | - | 4.28 | 16,434 |
| Name a Valid English City | 0 | - | 4.19 | 16,338 |
| English Monarchs in Order by First Letter | 0 | - | 4.37 | 29,812 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 272,183 |
| Australian Capitals | 0 | - | 4.92 | 62,209 |
| European Geography By Letter - A | 0 | - | 4.61 | 130,400 |
| European Geography By Letter - B #1 | 0 | - | 4.70 | 108,896 |
| European Geography By Letter - C | 0 | - | 4.46 | 110,017 |
| European Geography By Letter - D | 0 | - | 4.52 | 104,719 |
| European Geography By Letter - L | 0 | - | 4.52 | 110,073 |
| European Geography By Letter - M | 0 | - | 4.53 | 119,489 |
| European Geography By Letter - P | 0 | - | 4.78 | 94,477 |
| European Geography By Letter - N | 0 | - | 4.43 | 97,918 |
| European Geography By Letter - R | 0 | - | 4.41 | 91,104 |
| European Geography By Letter - V | 0 | - | 4.44 | 90,655 |
| Europe Map Quiz | 0 | - | 5.00 | 4,635,482 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,159 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 70,700 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,177 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,274 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 97,931 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 25,687 |
| Four Letter European Geography #2 | 0 | - | 4.55 | 18,456 |
| Capitals of French Regions | 0 | - | 4.43 | 15,725 |
| Capitals of German States | 0 | - | 4.70 | 28,419 |
| Chancellors of Germany, 1949–present | 0 | - | 4.58 | 22,478 |
| Olympian Gods Quiz | 0 | - | 4.96 | 476,255 |
| Name that Greek Letter | 0 | - | 4.93 | 315,141 |
| Ancient Greek Words | 0 | - | 4.92 | 107,497 |
| Beatles Songs Quiz | 0 | - | 4.97 | 227,335 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 286,347 |
| Africa Map Quiz | 0 | - | 5.00 | 2,067,610 |
| Oceania Map Quiz | 0 | - | 4.98 | 617,264 |
| European Physical Geography | 0 | - | 4.25 | 33,058 |
| History of Russia Quiz | 0 | - | 4.49 | 31,447 |
| Geography of Russia | 0 | - | 4.56 | 21,121 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,229 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 423,394 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 53,938 |
| United Kingdom A-Z | 0 | - | 4.53 | 86,031 |
| Wives of King Henry VIII | 0 | - | 4.55 | 52,722 |
| Countries the UK Declared War On | 0 | - | 4.61 | 119,900 |
| Geography of the British Empire | 0 | - | 4.51 | 38,919 |
| Champions League Top 4 | 0 | - | 4.74 | 127,181 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,417,796 |
| Asia Map Quiz | 0 | - | 4.99 | 877,288 |
| Countries of Africa | 0 | - | 5.00 | 2,422,291 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 38,890 |
| African East Coast | 0 | - | 4.96 | 92,439 |
| Western Africa Map Quiz | 0 | - | 4.97 | 70,249 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 47,517 |
| Australia Map Quiz | 0 | - | 4.94 | 337,332 |
| United States Map Quiz | 0 | - | 4.98 | 4,093,489 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 204,066 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,729 |
| Countries That Use the Euro | 0 | - | 4.96 | 95,769 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 356,312 |
| European Geography By Letter - E | 0 | - | 4.22 | 110,543 |
| European Geography By Letter - F | 0 | - | 4.17 | 90,022 |
| European Geography By Letter - H | 0 | - | 4.29 | 93,484 |
| European Geography By Letter - G | 0 | - | 4.26 | 99,530 |
| European Geography By Letter - I | 0 | - | 4.11 | 92,974 |
| European Geography By Letter - K | 0 | - | 4.15 | 67,815 |
| European Geography By Letter - O | 0 | - | 4.29 | 60,716 |
| European Geography by Letter - W | 0 | - | 4.21 | 81,348 |
| European Geography By Letter - T | 0 | - | 4.40 | 73,892 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,664 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 49,485 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,519 |
| European Geography A-Z | 0 | - | 4.28 | 48,238 |
| Country Codes of Europe | 0 | - | 3.44 | 13,433 |
| The Only European Country ... | 0 | - | 4.92 | 204,504 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,641 |
| Austria... or Australia? | 0 | - | 4.73 | 102,501 |
| Presidents of France | 0 | - | 4.25 | 22,950 |
| French Foods | 0 | - | 4.00 | 27,317 |
| Ancient Greek Trivia | 0 | - | 4.61 | 65,937 |
| Figures from Greek Mythology | 0 | - | 4.90 | 178,377 |
| Italian Inventions | 0 | - | 3.86 | 18,318 |
| Countries Italy Declared War On | 0 | - | 4.74 | 42,297 |
