| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,373 |
| Official European Union Languages | 0 | - | 4.97 | 239,024 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,198 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,826 |
| Slavic Languages | 0 | - | 4.68 | 54,498 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,855 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,377 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,134 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,930 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,409 |
| History of Russia Quiz | 0 | - | 4.47 | 31,962 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,788 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,824 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,336 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,438 |
| Celtic Nations | 0 | - | 4.69 | 47,006 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,671 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,581 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,570 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,651 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,474 |
| Slavic Countries | 0 | - | 4.96 | 111,956 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,509 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,234 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,533 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,694 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,621 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,576 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,028 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,440 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,309 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,398 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,199 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,153 |
| States of Germany | 0 | - | 4.95 | 153,411 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,327 |
| Regions of Italy | 0 | - | 4.92 | 76,346 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,475 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,575 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,458 |
| Champions League Winners | 0 | - | 4.92 | 1,010,519 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,602 |
| Geography of Russia | 0 | - | 4.57 | 21,557 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,966 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,765 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,170 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,574 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,844 |
| Departments of France | 0 | - | 4.93 | 54,558 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,628 |
| England or Wales? | 0 | - | 4.94 | 45,820 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,142 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,660 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,934 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,751 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,676 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,891 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,408 |
| Name that Greek Letter | 0 | - | 4.93 | 324,270 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,677 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,523 |
| Languages of Spain | 0 | - | 4.36 | 23,360 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,036 |
| Word Chain - Russia | 0 | - | 4.33 | 15,773 |
| The Trojan War | 0 | - | 4.83 | 39,823 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,336 |
| History of Italy | 0 | - | 4.55 | 32,070 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,017 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,701 |
| Roman Emperors | 0 | - | 4.95 | 120,466 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,734 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,817 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,589 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,687 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,051 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,454 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,845 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,397 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,062 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,404 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,248 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,060 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,323 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,895 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,432 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,376 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,035 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,332 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,312 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,933 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,569 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Regions of France | 0 | - | 4.70 | 121,358 |
| France Immigration by Country | 0 | - | 4.70 | 76,706 |
| Famous Germans | 0 | - | 4.50 | 55,556 |
| German Groups of Things | 0 | - | 4.46 | 38,536 |
| Capitals of German States | 0 | - | 4.74 | 28,997 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,416 |
| Germany True or False? | 0 | - | 4.61 | 48,910 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,180 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,113 |
| Ancient Greek Words | 0 | - | 4.93 | 111,991 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,881 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,528 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,358 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,487 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,235 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,160 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,681 |
| Top World Languages | 0 | - | 4.92 | 825,184 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,191 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,032 |
| Australian Capitals | 0 | - | 4.92 | 62,769 |
| European Physical Geography | 0 | - | 4.26 | 33,545 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,029 |
| History of Austria | 0 | - | 4.70 | 17,918 |
| Geography of the French Empire | 0 | - | 4.45 | 27,162 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| France Multiple Choice | 0 | - | 4.39 | 40,778 |
| History of France | 0 | - | 4.61 | 57,318 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,267 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| The Vikings! | 0 | - | 4.46 | 28,373 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,230 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| American to British Word Translation | 0 | - | 4.14 | 139,366 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,190 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,736 |
| Champions League Top 4 | 0 | - | 4.77 | 137,455 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,969 |
| Asia Map Quiz | 0 | - | 4.99 | 920,314 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,207 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,584 |
| Countries by Official Language | 0 | - | 4.95 | 195,365 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,591 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,537 |
| Countries in their Native Language | 0 | - | 4.99 | 199,154 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,196 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,014 |
| Australia Map Quiz | 0 | - | 4.95 | 345,342 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,396 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,929 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,760 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,715 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,208 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,311 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,663 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,512 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,198 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,937 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,572 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,044 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,179 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,766 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,470 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,822 |
| European Geography A-Z | 0 | - | 4.29 | 49,377 |
| Country Codes of Europe | 0 | - | 3.43 | 13,762 |
| The Only European Country ... | 0 | - | 4.91 | 217,603 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,713 |
| European Geographic Groups of Four | 0 | - | 4.57 | 14,387 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,329 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,328 |
| Austria... or Australia? | 0 | - | 4.68 | 104,536 |
| Famous French People | 0 | - | 4.07 | 35,897 |
| Presidents of France | 0 | - | 4.25 | 24,220 |
| Word Chain - France | 0 | - | 4.38 | 42,858 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,097 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,955 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,866 |
| Italian Foods | 0 | - | 4.30 | 72,995 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,444 |
| The Mafia Quiz | 0 | - | 4.46 | 23,385 |
| History of The Netherlands | 0 | - | 4.46 | 17,493 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,071 |
| Canary Islands | 0 | - | 4.62 | 17,498 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,179 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,846 |
| British Spellings | 0 | - | 4.06 | 99,518 |
| British Groups of Things | 0 | - | 4.25 | 82,919 |
| British Acronyms | 0 | - | 4.40 | 45,863 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| British Monopoly Board | 0 | - | 4.52 | 41,204 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,977 |
| Geography of Scotland | 0 | - | 4.63 | 21,672 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,395 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,133 |
| Countries of Africa | 0 | - | 5.00 | 2,546,731 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,162 |
| African East Coast | 0 | - | 4.96 | 96,352 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,206 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,516 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,793 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,504 |
| German-Speaking Countries | 0 | - | 4.91 | 145,796 |
| Italian Name Translation | 0 | - | 4.83 | 47,337 |
| French-Speaking Countries | 0 | - | 4.85 | 271,004 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,432 |
