| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,574 |
| Official European Union Languages | 0 | - | 4.97 | 239,429 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,439 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,696 |
| Slavic Languages | 0 | - | 4.68 | 54,609 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,893 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,166 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,219 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,994 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,631 |
| History of Russia Quiz | 0 | - | 4.47 | 31,985 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,831 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,918 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,459 |
| Celtic Nations | 0 | - | 4.61 | 47,061 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,885 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,198 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,917 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,936 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,641 |
| Slavic Countries | 0 | - | 4.96 | 112,183 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,616 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,338 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,063 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,893 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,679 |
| Top African Languages on a Map | 0 | - | 4.94 | 74,924 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,557 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,608 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,691 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,263 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,697 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,907 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,321 |
| States of Germany | 0 | - | 4.95 | 153,981 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,528 |
| Regions of Italy | 0 | - | 4.92 | 76,681 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,649 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,996 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,606 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,017 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Champions League Winners | 0 | - | 4.92 | 1,013,108 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,123 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,427 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,420 |
| Departments of France | 0 | - | 4.93 | 54,853 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,700 |
| England or Wales? | 0 | - | 4.94 | 45,892 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,624 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,704 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,147 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,259 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,704 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,590 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,779 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,693 |
| Name that Greek Letter | 0 | - | 4.93 | 324,657 |
| Languages of Spain | 0 | - | 4.36 | 23,396 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,626 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,801 |
| Word Chain - Russia | 0 | - | 4.33 | 15,782 |
| The Trojan War | 0 | - | 4.83 | 39,930 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,669 |
| History of Italy | 0 | - | 4.55 | 32,107 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,191 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,478 |
| Roman Emperors | 0 | - | 4.95 | 120,877 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,379 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,293 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,032 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,180 |
| Top World Languages | 0 | - | 4.92 | 827,554 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,654 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,034 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,775 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,038 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,710 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,040 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,850 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,361 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,579 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,265 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,585 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,446 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,102 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,397 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,364 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,199 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,417 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,641 |
| Capitals of French Regions | 0 | - | 4.45 | 16,154 |
| Regions of France | 0 | - | 4.70 | 121,728 |
| France Immigration by Country | 0 | - | 4.70 | 76,828 |
| Famous Germans | 0 | - | 4.50 | 55,665 |
| German Groups of Things | 0 | - | 4.47 | 38,594 |
| Capitals of German States | 0 | - | 4.74 | 29,033 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,492 |
| Germany True or False? | 0 | - | 4.61 | 48,960 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,330 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,959 |
| Ancient Greek Words | 0 | - | 4.93 | 112,237 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,078 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,633 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,379 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,649 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,861 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,561 |
| Countries by Official Language | 0 | - | 4.95 | 195,688 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,993 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,185 |
| Countries in their Native Language | 0 | - | 4.99 | 199,464 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,495 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,215 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,868 |
| European Physical Geography | 0 | - | 4.26 | 33,572 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,075 |
| History of Austria | 0 | - | 4.70 | 17,950 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| France Multiple Choice | 0 | - | 4.39 | 40,811 |
| History of France | 0 | - | 4.61 | 57,462 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,541 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,040 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,410 |
| The Vikings! | 0 | - | 4.46 | 28,391 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,311 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| American to British Word Translation | 0 | - | 4.14 | 139,533 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,263 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Champions League Top 4 | 0 | - | 4.77 | 138,202 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,065 |
| Asia Map Quiz | 0 | - | 4.99 | 922,991 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,311 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,919 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,252 |
| Australia Map Quiz | 0 | - | 4.95 | 345,757 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,735 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,434 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,834 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,267 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,703 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,780 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,090 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,895 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,596 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,293 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,929 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,346 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,406 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,828 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,696 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,731 |
| European Geography A-Z | 0 | - | 4.29 | 49,431 |
| Country Codes of Europe | 0 | - | 3.43 | 13,783 |
| The Only European Country ... | 0 | - | 4.91 | 218,337 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,144 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,591 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,347 |
| Austria... or Australia? | 0 | - | 4.68 | 104,653 |
| Famous French People | 0 | - | 4.07 | 36,001 |
| Presidents of France | 0 | - | 4.25 | 24,294 |
| Word Chain - France | 0 | - | 4.38 | 42,896 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,172 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,002 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,352 |
| Italian Foods | 0 | - | 4.30 | 73,124 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,558 |
| The Mafia Quiz | 0 | - | 4.46 | 23,410 |
| History of The Netherlands | 0 | - | 4.46 | 17,529 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,094 |
| Canary Islands | 0 | - | 4.62 | 17,513 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,955 |
| British Spellings | 0 | - | 4.06 | 99,558 |
| British Groups of Things | 0 | - | 4.25 | 82,975 |
| British Acronyms | 0 | - | 4.40 | 45,899 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| British Monopoly Board | 0 | - | 4.52 | 41,235 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,056 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,685 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,210 |
| Countries of Africa | 0 | - | 5.00 | 2,552,856 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,617 |
| African East Coast | 0 | - | 4.96 | 96,550 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,416 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,669 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,603 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,882 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,600 |
| German-Speaking Countries | 0 | - | 4.92 | 145,914 |
| Italian Name Translation | 0 | - | 4.83 | 47,684 |
| French-Speaking Countries | 0 | - | 4.85 | 271,357 |
