| European Countries by First 2 Letters | 0 | - | 4.95 | 528,541 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,916 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,975 |
| Official European Union Languages | 0 | - | 4.97 | 238,045 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,567 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,333 |
| Slavic Languages | 0 | - | 4.68 | 54,250 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,861 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,741 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,352 |
| Celtic Nations | 0 | - | 4.69 | 46,903 |
| History of Russia Quiz | 0 | - | 4.49 | 31,876 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,684 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,217 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,892 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,403 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,943 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,680 |
| Slavic Countries | 0 | - | 4.96 | 111,447 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,278 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,861 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,970 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,850 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,377 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,816 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,638 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,168 |
| Geography of Russia | 0 | - | 4.57 | 21,505 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,690 |
| States of Germany | 0 | - | 4.96 | 151,758 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,844 |
| Regions of Italy | 0 | - | 4.92 | 75,495 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,739 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,582 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,951 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,655 |
| Champions League Winners | 0 | - | 4.92 | 1,003,335 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,545 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,466 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,297 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,461 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,198 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,565 |
| Departments of France | 0 | - | 4.93 | 53,704 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,568 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,511 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,411 |
| England or Wales? | 0 | - | 4.94 | 45,584 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,664 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,796 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,321 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,701 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,566 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,817 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,861 |
| Name that Greek Letter | 0 | - | 4.93 | 323,007 |
| History of Italy | 0 | - | 4.55 | 31,929 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,615 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,604 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,154 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,957 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,347 |
| Word Chain - Russia | 0 | - | 4.33 | 15,737 |
| Capitals of French Regions | 0 | - | 4.45 | 16,033 |
| Capitals of German States | 0 | - | 4.74 | 28,922 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,273 |
| The Trojan War | 0 | - | 4.83 | 39,631 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,487 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,393 |
| Roman Emperors | 0 | - | 4.95 | 119,614 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,040 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,219 |
| Australian Capitals | 0 | - | 4.92 | 62,691 |
| European Geography By Letter - A | 0 | - | 4.51 | 144,432 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,490 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,238 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,992 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,069 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,038 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,167 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,501 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,191 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,755 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,070 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,193 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,851 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,137 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,168 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,304 |
| Regions of France | 0 | - | 4.75 | 120,340 |
| France Immigration by Country | 0 | - | 4.70 | 76,372 |
| Famous Germans | 0 | - | 4.50 | 55,126 |
| German Groups of Things | 0 | - | 4.46 | 38,425 |
| Germany True or False? | 0 | - | 4.61 | 48,729 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,844 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,388 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,228 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,197 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,228 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,036 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,223 |
| Asia Map Quiz | 0 | - | 4.99 | 914,013 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,539 |
| African East Coast | 0 | - | 4.96 | 95,759 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,571 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,422 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,632 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,557 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,424 |
| European Physical Geography | 0 | - | 4.26 | 33,457 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,741 |
| Country Codes of Europe | 0 | - | 3.43 | 13,699 |
| The Only European Country ... | 0 | - | 4.91 | 215,859 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,680 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,023 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,899 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Presidents of France | 0 | - | 4.25 | 24,019 |
| Geography of the French Empire | 0 | - | 4.45 | 27,018 |
| The French Revolution | 0 | - | 4.46 | 23,894 |
| France Multiple Choice | 0 | - | 4.38 | 40,698 |
| History of France | 0 | - | 4.59 | 56,790 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,457 |
| Ancient Greek Words | 0 | - | 4.93 | 111,297 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,978 |
| The Vikings! | 0 | - | 4.46 | 28,314 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,017 |
| The Portuguese Empire | 0 | - | 4.58 | 12,045 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,006 |
| American to British Word Translation | 0 | - | 4.14 | 138,689 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,852 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,544 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,574 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,527 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,422 |
| Champions League Top 4 | 0 | - | 4.77 | 135,615 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,574 |
| Countries of Africa | 0 | - | 5.00 | 2,528,705 |
| Australia Map Quiz | 0 | - | 4.95 | 343,728 |
| United States Map Quiz | 0 | - | 4.98 | 4,152,934 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,843 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,172 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,512 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,691 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,338 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,188 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,854 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,452 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,711 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,595 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,971 |
| European Geography A-Z | 0 | - | 4.29 | 49,180 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,282 |
| Austria... or Australia? | 0 | - | 4.68 | 104,212 |
| Famous French People | 0 | - | 4.06 | 34,404 |
| Word Chain - France | 0 | - | 4.38 | 42,727 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,923 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,869 |
| Italian Foods | 0 | - | 4.30 | 72,609 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,234 |
| The Mafia Quiz | 0 | - | 4.46 | 23,292 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,949 |
| History of The Netherlands | 0 | - | 4.46 | 17,403 |
| Canary Islands | 0 | - | 4.62 | 17,458 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,570 |
| British Spellings | 0 | - | 4.06 | 99,396 |
| British Groups of Things | 0 | - | 4.25 | 82,823 |
| British Acronyms | 0 | - | 4.39 | 45,746 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,012 |
| British Monopoly Board | 0 | - | 4.52 | 41,133 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,647 |
| Geography of Scotland | 0 | - | 4.63 | 21,580 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,601 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,847 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,833 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,589 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,345 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,949 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,026 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,097 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,582 |
| African Island Countries | 0 | - | 4.96 | 101,376 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,983 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,090 |
| Australian States and Territories | 0 | - | 4.96 | 141,649 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,222 |
| Australia True or False | 0 | - | 4.87 | 56,751 |
| Flags of North and South America | 0 | - | 4.99 | 371,647 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,496 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,054 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,230 |
| South America Map Quiz | 0 | - | 5.00 | 1,546,885 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,996 |
| North America Map Quiz | 0 | - | 4.98 | 247,471 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,627 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,991 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,934 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,013 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,771 |
