| European Countries by First 2 Letters | 0 | - | 4.95 | 529,796 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,382 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,075 |
| States of Germany | 0 | - | 4.95 | 152,771 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,118 |
| Regions of Italy | 0 | - | 4.92 | 75,999 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,252 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,074 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,257 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,712 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,190 |
| Official European Union Languages | 0 | - | 4.97 | 238,621 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,938 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,412 |
| The Vikings! | 0 | - | 4.46 | 28,352 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,015 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,857 |
| History of Italy | 0 | - | 4.55 | 31,994 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,826 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,675 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,254 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,399 |
| Celtic Nations | 0 | - | 4.69 | 46,959 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,418 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,729 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,154 |
| Counties of England | 0 | - | 4.97 | 797,515 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,460 |
| Regions of France | 0 | - | 4.72 | 120,929 |
| France Immigration by Country | 0 | - | 4.70 | 76,565 |
| Famous Germans | 0 | - | 4.50 | 55,331 |
| German Groups of Things | 0 | - | 4.46 | 38,487 |
| Germany True or False? | 0 | - | 4.61 | 48,834 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,055 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,539 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,412 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,284 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,293 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,189 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,515 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,702 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,063 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,503 |
| History of Austria | 0 | - | 4.70 | 17,869 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,536 |
| Geography of the French Empire | 0 | - | 4.45 | 27,096 |
| The French Revolution | 0 | - | 4.47 | 23,987 |
| France Multiple Choice | 0 | - | 4.39 | 40,748 |
| History of France | 0 | - | 4.59 | 57,072 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,908 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,155 |
| The Portuguese Empire | 0 | - | 4.58 | 12,068 |
| American to British Word Translation | 0 | - | 4.14 | 139,147 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,912 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,043 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,795 |
| Champions League Winners | 0 | - | 4.92 | 1,007,523 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,455 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,016 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,246 |
| Departments of France | 0 | - | 4.93 | 54,216 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,561 |
| England or Wales? | 0 | - | 4.94 | 45,728 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,503 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,614 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,661 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,748 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,108 |
| Slavic Languages | 0 | - | 4.68 | 54,388 |
| Famous French People | 0 | - | 4.07 | 35,644 |
| Word Chain - France | 0 | - | 4.38 | 42,791 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,630 |
| Italian Foods | 0 | - | 4.30 | 72,823 |
| The Mafia Quiz | 0 | - | 4.46 | 23,334 |
| History of The Netherlands | 0 | - | 4.46 | 17,443 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,487 |
| Canary Islands | 0 | - | 4.62 | 17,485 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,741 |
| British Spellings | 0 | - | 4.06 | 99,467 |
| British Groups of Things | 0 | - | 4.25 | 82,883 |
| British Acronyms | 0 | - | 4.40 | 45,810 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,043 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,848 |
| Geography of Scotland | 0 | - | 4.63 | 21,627 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,501 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,793 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,490 |
| Geography of Germany | 0 | - | 4.35 | 17,194 |
| History of Germany | 0 | - | 4.39 | 52,844 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,887 |
| Name that Greek Letter | 0 | - | 4.93 | 323,805 |
| History of Spain | 0 | - | 4.23 | 21,097 |
| Languages of Spain | 0 | - | 4.36 | 23,329 |
| British to American Word Translation | 0 | - | 3.74 | 255,112 |
| British Foods by Description | 0 | - | 3.94 | 48,332 |
| British and American Word Differences | 0 | - | 2.63 | 46,886 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,602 |
| Bridges of London | 0 | - | 4.17 | 10,112 |
| British Sport Trivia | 0 | - | 4.37 | 20,467 |
| Famous Welsh People | 0 | - | 4.31 | 11,518 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,335 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,151 |
| History of Russia Quiz | 0 | - | 4.47 | 31,930 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,746 |
| Movies Set in France | 0 | - | 4.26 | 13,124 |
| French Inventions | 0 | - | 4.08 | 13,900 |
| History of Paris | 0 | - | 4.24 | 13,654 |
| Word Chain - Germany | 0 | - | 4.31 | 22,593 |
| The Trojan War | 0 | - | 4.83 | 39,752 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,956 |
| Word Chain - Italy | 0 | - | 4.07 | 23,170 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,111 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,564 |
| Roman Emperors | 0 | - | 4.95 | 120,157 |
| Famous Nordic People | 0 | - | 4.34 | 20,138 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,782 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,615 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,892 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,346 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,535 |
| 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 | 279,305 |
| Australian Capitals | 0 | - | 4.92 | 62,733 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,415 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,692 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,125 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,753 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,613 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,794 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,630 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,929 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,778 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,068 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,518 |
| Europe Map Quiz | 0 | - | 5.00 | 4,765,240 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,302 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,968 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,249 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,250 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,666 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,483 |
| Capitals of French Regions | 0 | - | 4.45 | 16,085 |
| Capitals of German States | 0 | - | 4.74 | 28,971 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,357 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,141 |
| Ancient Greek Words | 0 | - | 4.93 | 111,696 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,438 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,817 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,915 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,792 |
| European Physical Geography | 0 | - | 4.26 | 33,520 |
| Geography of Russia | 0 | - | 4.57 | 21,542 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,978 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,370 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,182 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,067 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,682 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,365 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,543 |
| Geography of the British Empire | 0 | - | 4.48 | 39,701 |
| Champions League Top 4 | 0 | - | 4.77 | 136,675 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,640 |
| Asia Map Quiz | 0 | - | 4.99 | 917,477 |
| Countries of Africa | 0 | - | 5.00 | 2,539,329 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,903 |
| African East Coast | 0 | - | 4.96 | 96,118 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,971 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,772 |
| Australia Map Quiz | 0 | - | 4.95 | 344,748 |
| United States Map Quiz | 0 | - | 4.98 | 4,160,175 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,421 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,675 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,188 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,619 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,861 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,025 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,138 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,815 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,619 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,257 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,802 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,975 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,697 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,254 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,365 |
| European Geography A-Z | 0 | - | 4.29 | 49,286 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 216,868 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,268 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,199 |
| Austria... or Australia? | 0 | - | 4.68 | 104,390 |
| Presidents of France | 0 | - | 4.25 | 24,157 |
| French Foods | 0 | - | 4.00 | 27,704 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,026 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,929 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,118 |
| Italian Inventions | 0 | - | 3.81 | 18,444 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,359 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,050 |
