| European Countries by First 2 Letters | 0 | - | 4.95 | 528,855 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,007 |
| Official European Union Languages | 0 | - | 4.97 | 238,162 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,633 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,581 |
| Celtic Nations | 0 | - | 4.69 | 46,909 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,889 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,765 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,363 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,262 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,011 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,731 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,291 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,888 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,404 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,502 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,661 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,912 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,924 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,001 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,730 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,446 |
| States of Germany | 0 | - | 4.96 | 151,975 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,906 |
| Regions of Italy | 0 | - | 4.92 | 75,573 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,926 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,674 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,029 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,710 |
| Champions League Winners | 0 | - | 4.92 | 1,004,114 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,564 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,644 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,510 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,494 |
| Slavic Languages | 0 | - | 4.68 | 54,282 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,582 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,423 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,672 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,353 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,725 |
| Departments of France | 0 | - | 4.93 | 53,828 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,520 |
| England or Wales? | 0 | - | 4.94 | 45,613 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,853 |
| Australian Capitals | 0 | - | 4.92 | 62,696 |
| Europe Map Quiz | 0 | - | 5.00 | 4,756,159 |
| Country Codes of Europe | 0 | - | 3.43 | 13,700 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,875 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,351 |
| History of Russia Quiz | 0 | - | 4.49 | 31,883 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,697 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,722 |
| Capitals of French Regions | 0 | - | 4.45 | 16,043 |
| Capitals of German States | 0 | - | 4.74 | 28,933 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,289 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,656 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,617 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,172 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,975 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,711 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,270 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,660 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,390 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,116 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,172 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,186 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,256 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,590 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,368 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,821 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,169 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,214 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,872 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,160 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,188 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,399 |
| Regions of France | 0 | - | 4.75 | 120,453 |
| France Immigration by Country | 0 | - | 4.70 | 76,413 |
| Famous Germans | 0 | - | 4.50 | 55,191 |
| German Groups of Things | 0 | - | 4.46 | 38,441 |
| Germany True or False? | 0 | - | 4.61 | 48,743 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,887 |
| The Trojan War | 0 | - | 4.83 | 39,655 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,196 |
| Name that Greek Letter | 0 | - | 4.93 | 323,116 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,556 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,325 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,428 |
| Roman Emperors | 0 | - | 4.95 | 119,668 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,244 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,236 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,090 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,772 |
| Asia Map Quiz | 0 | - | 4.99 | 914,693 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,632 |
| African East Coast | 0 | - | 4.96 | 95,843 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,648 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,477 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,797 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,587 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,581 |
| European Physical Geography | 0 | - | 4.26 | 33,475 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,864 |
| The Only European Country ... | 0 | - | 4.91 | 216,038 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,795 |
| Geography of Russia | 0 | - | 4.57 | 21,511 |
| History of Austria | 0 | - | 4.70 | 17,836 |
| Presidents of France | 0 | - | 4.25 | 24,042 |
| Geography of the French Empire | 0 | - | 4.45 | 27,027 |
| The French Revolution | 0 | - | 4.46 | 23,905 |
| France Multiple Choice | 0 | - | 4.39 | 40,712 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| The Vikings! | 0 | - | 4.46 | 28,321 |
| The Portuguese Empire | 0 | - | 4.58 | 12,048 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,013 |
| American to British Word Translation | 0 | - | 4.14 | 138,780 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,863 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,668 |
| Countries of Africa | 0 | - | 5.00 | 2,530,633 |
| Australia Map Quiz | 0 | - | 4.95 | 343,869 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,009 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,912 |
| History of France | 0 | - | 4.59 | 56,849 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,655 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,051 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,581 |
| Champions League Top 4 | 0 | - | 4.77 | 135,837 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,380 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,539 |
| United States Map Quiz | 0 | - | 4.98 | 4,154,260 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,276 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,600 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,780 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,430 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,270 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,928 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,530 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,770 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,618 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,032 |
| European Geography A-Z | 0 | - | 4.29 | 49,204 |
| Famous French People | 0 | - | 4.06 | 35,043 |
| Word Chain - France | 0 | - | 4.38 | 42,747 |
| Ancient Greek Words | 0 | - | 4.93 | 111,372 |
| Italian Foods | 0 | - | 4.30 | 72,666 |
| The Mafia Quiz | 0 | - | 4.46 | 23,300 |
| History of The Netherlands | 0 | - | 4.46 | 17,409 |
| Canary Islands | 0 | - | 4.62 | 17,462 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,614 |
| British Spellings | 0 | - | 4.06 | 99,411 |
| British Groups of Things | 0 | - | 4.25 | 82,836 |
| British Acronyms | 0 | - | 4.39 | 45,761 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,021 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,696 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,615 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,705 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,474 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,876 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,436 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,685 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,403 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,028 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,101 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,206 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,723 |
| African Island Countries | 0 | - | 4.96 | 101,446 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,086 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,136 |
| Australian States and Territories | 0 | - | 4.96 | 141,712 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,234 |
| Australia Country Quiz | 0 | - | 4.43 | 69,532 |
| Australia True or False | 0 | - | 4.87 | 56,781 |
| Flags of North and South America | 0 | - | 4.99 | 372,037 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,517 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,098 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,378 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,472 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,745 |
| North America Map Quiz | 0 | - | 4.98 | 247,771 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,660 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,456 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,251 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,049 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,796 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,339 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,506 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,444 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,993 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,209 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,001 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,825 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,029 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,761 |
| Slavic Countries | 0 | - | 4.96 | 111,503 |
| Austria... or Australia? | 0 | - | 4.68 | 104,238 |
| Geography of Germany | 0 | - | 4.35 | 17,165 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,944 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,879 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,258 |
