| European Countries by First 2 Letters | 0 | - | 4.95 | 526,830 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,106 |
| States of Germany | 0 | - | 4.96 | 150,522 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,165 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,629 |
| Regions of Italy | 0 | - | 4.92 | 74,923 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,953 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,616 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,476 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,577 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,714 |
| Official European Union Languages | 0 | - | 4.97 | 237,216 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,063 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,753 |
| The Vikings! | 0 | - | 4.46 | 28,261 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,608 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,615 |
| History of Italy | 0 | - | 4.55 | 31,858 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,296 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,515 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,018 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,262 |
| Celtic Nations | 0 | - | 4.69 | 46,839 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,954 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,277 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,658 |
| Counties of England | 0 | - | 4.97 | 790,514 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,012 |
| Regions of France | 0 | - | 4.78 | 119,544 |
| France Immigration by Country | 0 | - | 4.72 | 76,048 |
| Famous Germans | 0 | - | 4.50 | 54,713 |
| German Groups of Things | 0 | - | 4.46 | 38,341 |
| Germany True or False? | 0 | - | 4.61 | 48,581 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,584 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,678 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,925 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,096 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,114 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,487 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,361 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,215 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,472 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,010 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,557 |
| History of Austria | 0 | - | 4.70 | 17,775 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,428 |
| Geography of the French Empire | 0 | - | 4.45 | 26,963 |
| The French Revolution | 0 | - | 4.46 | 23,819 |
| France Multiple Choice | 0 | - | 4.38 | 40,654 |
| History of France | 0 | - | 4.59 | 56,319 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,939 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,403 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,749 |
| The Portuguese Empire | 0 | - | 4.54 | 12,005 |
| American to British Word Translation | 0 | - | 4.12 | 136,871 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,756 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,162 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,331 |
| Champions League Winners | 0 | - | 4.92 | 998,090 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,974 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,587 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,504 |
| Departments of France | 0 | - | 4.93 | 53,023 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,401 |
| England or Wales? | 0 | - | 4.94 | 45,403 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,788 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,480 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,613 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,105 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,387 |
| Slavic Languages | 0 | - | 4.68 | 54,059 |
| Word Chain - France | 0 | - | 4.38 | 42,615 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,464 |
| Italian Foods | 0 | - | 4.31 | 72,294 |
| The Mafia Quiz | 0 | - | 4.46 | 23,222 |
| History of The Netherlands | 0 | - | 4.46 | 17,339 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,282 |
| Canary Islands | 0 | - | 4.61 | 17,420 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,249 |
| British Spellings | 0 | - | 4.07 | 99,295 |
| British Groups of Things | 0 | - | 4.25 | 82,724 |
| British Acronyms | 0 | - | 4.39 | 45,659 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,974 |
| Geography of Scotland | 0 | - | 4.63 | 21,508 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,951 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,562 |
| Geography of Germany | 0 | - | 4.35 | 17,111 |
| History of Germany | 0 | - | 4.39 | 52,667 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,046 |
| Name that Greek Letter | 0 | - | 4.94 | 322,012 |
| History of Spain | 0 | - | 4.29 | 21,020 |
| Languages of Spain | 0 | - | 4.36 | 23,181 |
| British to American Word Translation | 0 | - | 3.75 | 254,757 |
| British Foods by Description | 0 | - | 3.94 | 48,274 |
| British and American Word Differences | 0 | - | 2.64 | 46,781 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,528 |
| Bridges of London | 0 | - | 4.17 | 10,066 |
| British Sport Trivia | 0 | - | 4.37 | 20,384 |
| Famous Welsh People | 0 | - | 4.21 | 9,781 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,782 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,311 |
| History of Russia Quiz | 0 | - | 4.49 | 31,811 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,600 |
| Famous French People | 0 | - | 4.12 | 28,048 |
| Movies Set in France | 0 | - | 4.26 | 13,088 |
| French Inventions | 0 | - | 4.08 | 13,868 |
| History of Paris | 0 | - | 4.24 | 13,623 |
| Word Chain - Germany | 0 | - | 4.31 | 22,493 |
| The Trojan War | 0 | - | 4.83 | 39,484 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,813 |
| Word Chain - Italy | 0 | - | 4.07 | 23,106 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,054 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,145 |
| Roman Emperors | 0 | - | 4.95 | 118,725 |
| Famous Nordic People | 0 | - | 4.34 | 19,914 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,705 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,555 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,627 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,256 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,482 |
| People on Money - England | 0 | - | 4.29 | 16,574 |
| Name a Valid English City | 0 | - | 4.19 | 16,647 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,423 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,565 |
| Australian Capitals | 0 | - | 4.92 | 62,612 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,550 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,028 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,984 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,855 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,338 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,111 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,942 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,711 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,089 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,432 |
| Europe Map Quiz | 0 | - | 5.00 | 4,737,321 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,040 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,673 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,001 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,034 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,686 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,248 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,695 |
| Capitals of French Regions | 0 | - | 4.45 | 15,997 |
| Capitals of German States | 0 | - | 4.74 | 28,856 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,143 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,236 |
| Ancient Greek Words | 0 | - | 4.92 | 110,876 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,498 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,538 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,705 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,530 |
| European Physical Geography | 0 | - | 4.26 | 33,393 |
| Geography of Russia | 0 | - | 4.57 | 21,449 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,809 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,269 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,701 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,323 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,419 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,226 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,956 |
| Geography of the British Empire | 0 | - | 4.48 | 39,529 |
| Champions League Top 4 | 0 | - | 4.77 | 134,253 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,266 |
| Asia Map Quiz | 0 | - | 4.99 | 908,490 |
| Countries of Africa | 0 | - | 5.00 | 2,513,085 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,971 |
| African East Coast | 0 | - | 4.96 | 95,229 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,115 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,995 |
| Australia Map Quiz | 0 | - | 4.94 | 342,805 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,666 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,539 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,357 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,400 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,697 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,331 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,764 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,001 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,543 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,587 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,262 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,006 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,354 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,447 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,573 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,885 |
| European Geography A-Z | 0 | - | 4.28 | 49,046 |
| Country Codes of Europe | 0 | - | 3.46 | 13,662 |
| The Only European Country ... | 0 | - | 4.91 | 214,375 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,891 |
| Austria... or Australia? | 0 | - | 4.68 | 103,966 |
| Presidents of France | 0 | - | 4.25 | 23,935 |
| French Foods | 0 | - | 4.00 | 27,609 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,819 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,801 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,348 |
| Italian Inventions | 0 | - | 3.81 | 18,416 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,047 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,973 |
