| European Countries by First 2 Letters | 0 | - | 4.95 | 529,740 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,377 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,050 |
| States of Germany | 0 | - | 4.95 | 152,742 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,098 |
| Regions of Italy | 0 | - | 4.92 | 75,974 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,232 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,057 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,250 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,711 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,180 |
| Official European Union Languages | 0 | - | 4.97 | 238,599 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,917 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,356 |
| The Vikings! | 0 | - | 4.46 | 28,351 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,011 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,854 |
| History of Italy | 0 | - | 4.55 | 31,985 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,818 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,671 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,246 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,391 |
| Celtic Nations | 0 | - | 4.69 | 46,958 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,405 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,708 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,070 |
| Counties of England | 0 | - | 4.97 | 797,377 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,348 |
| Regions of France | 0 | - | 4.72 | 120,899 |
| France Immigration by Country | 0 | - | 4.70 | 76,556 |
| Famous Germans | 0 | - | 4.50 | 55,324 |
| German Groups of Things | 0 | - | 4.46 | 38,484 |
| Germany True or False? | 0 | - | 4.61 | 48,828 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,050 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,535 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,400 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,281 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,285 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,182 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,511 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,685 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,040 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,455 |
| History of Austria | 0 | - | 4.70 | 17,867 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,509 |
| Geography of the French Empire | 0 | - | 4.45 | 27,080 |
| The French Revolution | 0 | - | 4.47 | 23,967 |
| France Multiple Choice | 0 | - | 4.39 | 40,747 |
| History of France | 0 | - | 4.59 | 57,042 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,894 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,150 |
| The Portuguese Empire | 0 | - | 4.58 | 12,067 |
| American to British Word Translation | 0 | - | 4.14 | 139,125 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,910 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,032 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,751 |
| Champions League Winners | 0 | - | 4.92 | 1,007,361 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,415 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,977 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,224 |
| Departments of France | 0 | - | 4.93 | 54,198 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,560 |
| England or Wales? | 0 | - | 4.94 | 45,720 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,484 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,609 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,735 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,084 |
| Slavic Languages | 0 | - | 4.68 | 54,386 |
| Famous French People | 0 | - | 4.07 | 35,633 |
| Word Chain - France | 0 | - | 4.38 | 42,788 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,629 |
| Italian Foods | 0 | - | 4.30 | 72,811 |
| The Mafia Quiz | 0 | - | 4.46 | 23,330 |
| History of The Netherlands | 0 | - | 4.46 | 17,441 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,485 |
| Canary Islands | 0 | - | 4.62 | 17,483 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,734 |
| British Spellings | 0 | - | 4.06 | 99,464 |
| British Groups of Things | 0 | - | 4.25 | 82,880 |
| British Acronyms | 0 | - | 4.40 | 45,806 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,039 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,841 |
| Geography of Scotland | 0 | - | 4.63 | 21,624 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,484 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,785 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,488 |
| Geography of Germany | 0 | - | 4.35 | 17,191 |
| History of Germany | 0 | - | 4.39 | 52,837 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,782 |
| Name that Greek Letter | 0 | - | 4.93 | 323,666 |
| History of Spain | 0 | - | 4.23 | 21,094 |
| Languages of Spain | 0 | - | 4.36 | 23,326 |
| British to American Word Translation | 0 | - | 3.74 | 255,104 |
| British Foods by Description | 0 | - | 3.94 | 48,332 |
| British and American Word Differences | 0 | - | 2.63 | 46,885 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,600 |
| Bridges of London | 0 | - | 4.17 | 10,109 |
| British Sport Trivia | 0 | - | 4.37 | 20,465 |
| Famous Welsh People | 0 | - | 4.31 | 11,512 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,302 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,141 |
| History of Russia Quiz | 0 | - | 4.47 | 31,924 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,741 |
| Movies Set in France | 0 | - | 4.26 | 13,123 |
| French Inventions | 0 | - | 4.08 | 13,899 |
| History of Paris | 0 | - | 4.24 | 13,654 |
| Word Chain - Germany | 0 | - | 4.31 | 22,591 |
| The Trojan War | 0 | - | 4.83 | 39,746 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,932 |
| Word Chain - Italy | 0 | - | 4.07 | 23,169 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,108 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,558 |
| Roman Emperors | 0 | - | 4.95 | 120,128 |
| Famous Nordic People | 0 | - | 4.34 | 20,135 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,780 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,615 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,883 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,345 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,534 |
| People on Money - England | 0 | - | 4.29 | 16,617 |
| Name a Valid English City | 0 | - | 4.19 | 16,734 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,269 |
| Australian Capitals | 0 | - | 4.92 | 62,730 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,397 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,633 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,109 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,740 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,605 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,778 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,620 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,923 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,770 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,065 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,510 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,682 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,295 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,964 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,242 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,245 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,663 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,473 |
| Capitals of French Regions | 0 | - | 4.45 | 16,083 |
| Capitals of German States | 0 | - | 4.74 | 28,966 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,350 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,075 |
| Ancient Greek Words | 0 | - | 4.93 | 111,676 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,409 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,790 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,661 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,672 |
| European Physical Geography | 0 | - | 4.26 | 33,519 |
| Geography of Russia | 0 | - | 4.57 | 21,538 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,974 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,324 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,174 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,060 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,678 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,358 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,523 |
| Geography of the British Empire | 0 | - | 4.48 | 39,693 |
| Champions League Top 4 | 0 | - | 4.77 | 136,632 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,544 |
| Asia Map Quiz | 0 | - | 4.99 | 917,328 |
| Countries of Africa | 0 | - | 5.00 | 2,538,709 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,890 |
| African East Coast | 0 | - | 4.96 | 96,109 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,956 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,752 |
| Australia Map Quiz | 0 | - | 4.95 | 344,725 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,395 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,380 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,671 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,154 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,593 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,853 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,017 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,134 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,807 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,609 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,250 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,799 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,971 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,692 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,249 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,349 |
| European Geography A-Z | 0 | - | 4.29 | 49,284 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 216,805 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,231 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,189 |
| Austria... or Australia? | 0 | - | 4.68 | 104,379 |
| Presidents of France | 0 | - | 4.25 | 24,154 |
| French Foods | 0 | - | 4.00 | 27,704 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,019 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,923 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,084 |
| Italian Inventions | 0 | - | 3.81 | 18,444 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,348 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,050 |
