| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,969 |
| Official European Union Languages | 0 | - | 4.97 | 238,017 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,550 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,518 |
| Slavic Languages | 0 | - | 4.68 | 54,240 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,861 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,293 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,854 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,735 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,809 |
| History of Russia Quiz | 0 | - | 4.49 | 31,874 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,682 |
| Top African Languages on a Map | 0 | - | 4.93 | 73,557 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,622 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,007 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,351 |
| Celtic Nations | 0 | - | 4.69 | 46,901 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,209 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,852 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,293 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,929 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,662 |
| Slavic Countries | 0 | - | 4.96 | 111,431 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,275 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,858 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,891 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,209 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,413 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,834 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,746 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,620 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,092 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,685 |
| States of Germany | 0 | - | 4.96 | 151,729 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,827 |
| Regions of Italy | 0 | - | 4.92 | 75,481 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,691 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,563 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,943 |
| Champions League Winners | 0 | - | 4.92 | 1,003,208 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,375 |
| Geography of Russia | 0 | - | 4.57 | 21,503 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,849 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,654 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,430 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,161 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,543 |
| Departments of France | 0 | - | 4.93 | 53,677 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,505 |
| England or Wales? | 0 | - | 4.94 | 45,578 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,633 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,542 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,458 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,271 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,303 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,698 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,783 |
| Name that Greek Letter | 0 | - | 4.93 | 322,976 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,568 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,410 |
| Languages of Spain | 0 | - | 4.36 | 23,274 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,769 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,958 |
| Word Chain - Russia | 0 | - | 4.33 | 15,737 |
| The Trojan War | 0 | - | 4.83 | 39,629 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,465 |
| History of Italy | 0 | - | 4.55 | 31,928 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,600 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,388 |
| Roman Emperors | 0 | - | 4.95 | 119,591 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,603 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,153 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,538 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,522 |
| European Geography By Letter - A | 0 | - | 4.52 | 144,021 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,428 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,190 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,941 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,031 |
| European Geography By Letter - M | 0 | - | 4.67 | 129,988 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,138 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,468 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,165 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,733 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,033 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,457 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,189 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,849 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,136 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,164 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,278 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,343 |
| Capitals of French Regions | 0 | - | 4.45 | 16,032 |
| Regions of France | 0 | - | 4.75 | 120,320 |
| France Immigration by Country | 0 | - | 4.70 | 76,365 |
| Famous Germans | 0 | - | 4.50 | 55,104 |
| German Groups of Things | 0 | - | 4.46 | 38,422 |
| Capitals of German States | 0 | - | 4.74 | 28,918 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,266 |
| Germany True or False? | 0 | - | 4.61 | 48,726 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,838 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,339 |
| Ancient Greek Words | 0 | - | 4.93 | 111,284 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,191 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,193 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,224 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,027 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,498 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,410 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,410 |
| Top World Languages | 0 | - | 4.92 | 819,462 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,896 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,133 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,121 |
| Australian Capitals | 0 | - | 4.92 | 62,688 |
| European Physical Geography | 0 | - | 4.26 | 33,452 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,895 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Geography of the French Empire | 0 | - | 4.45 | 27,017 |
| The French Revolution | 0 | - | 4.46 | 23,894 |
| France Multiple Choice | 0 | - | 4.38 | 40,697 |
| History of France | 0 | - | 4.59 | 56,779 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,455 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,902 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,972 |
| The Vikings! | 0 | - | 4.46 | 28,312 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,007 |
| The Portuguese Empire | 0 | - | 4.58 | 12,043 |
| American to British Word Translation | 0 | - | 4.14 | 138,675 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,537 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,566 |
| Champions League Top 4 | 0 | - | 4.77 | 135,581 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,116 |
| Asia Map Quiz | 0 | - | 4.99 | 913,905 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,912 |
| Countries by Official Language | 0 | - | 4.95 | 194,510 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,422 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,480 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,357 |
| Countries in their Native Language | 0 | - | 4.99 | 198,074 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,194 |
| Countries of Africa | 0 | - | 5.00 | 2,528,358 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,516 |
| African East Coast | 0 | - | 4.96 | 95,744 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,560 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,416 |
| Australia Map Quiz | 0 | - | 4.95 | 343,702 |
| United States Map Quiz | 0 | - | 4.98 | 4,152,335 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,600 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,548 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,381 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,802 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,135 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,482 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,650 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,301 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,154 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,822 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,431 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,687 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,593 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,944 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,704 |
| European Geography A-Z | 0 | - | 4.29 | 49,176 |
| Country Codes of Europe | 0 | - | 3.43 | 13,698 |
| The Only European Country ... | 0 | - | 4.91 | 215,821 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,652 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,018 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,282 |
| Austria... or Australia? | 0 | - | 4.68 | 104,207 |
| Famous French People | 0 | - | 4.09 | 34,097 |
| Presidents of France | 0 | - | 4.25 | 24,018 |
| Word Chain - France | 0 | - | 4.38 | 42,725 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,918 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,868 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,313 |
| Italian Foods | 0 | - | 4.30 | 72,596 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,232 |
| The Mafia Quiz | 0 | - | 4.46 | 23,291 |
| History of The Netherlands | 0 | - | 4.46 | 17,400 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,006 |
| Canary Islands | 0 | - | 4.62 | 17,458 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,050 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,560 |
| British Spellings | 0 | - | 4.06 | 99,394 |
| British Groups of Things | 0 | - | 4.25 | 82,822 |
| British Acronyms | 0 | - | 4.39 | 45,744 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,011 |
| British Monopoly Board | 0 | - | 4.52 | 41,133 |
| Geography of Scotland | 0 | - | 4.63 | 21,580 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,542 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,519 |
| Spanish to English Country Names | 0 | - | 4.86 | 32,805 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,299 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,557 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,250 |
| German-Speaking Countries | 0 | - | 4.91 | 145,202 |
| Italian Name Translation | 0 | - | 4.81 | 46,283 |
| French-Speaking Countries | 0 | - | 4.85 | 270,102 |
