| Regions of Spain Quiz | 0 | - | 4.90 | 113,911 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,428 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,344 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,995 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,296 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,225 |
| States of Germany | 0 | - | 4.96 | 152,481 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,012 |
| Regions of Italy | 0 | - | 4.92 | 75,839 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,130 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,182 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,693 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,108 |
| Official European Union Languages | 0 | - | 4.97 | 238,466 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,819 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,122 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,888 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,457 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,976 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,233 |
| Name that Greek Letter | 0 | - | 4.93 | 323,393 |
| Canary Islands | 0 | - | 4.62 | 17,478 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,829 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,050 |
| History of Italy | 0 | - | 4.55 | 31,969 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,767 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,653 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,984 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,383 |
| Celtic Nations | 0 | - | 4.69 | 46,938 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,636 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,349 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,426 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,649 |
| History of Spain | 0 | - | 4.23 | 21,085 |
| Counties of England | 0 | - | 4.97 | 796,484 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,790 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,406 |
| Regions of France | 0 | - | 4.72 | 120,740 |
| France Immigration by Country | 0 | - | 4.70 | 76,499 |
| Famous Germans | 0 | - | 4.50 | 55,278 |
| German Groups of Things | 0 | - | 4.46 | 38,473 |
| Germany True or False? | 0 | - | 4.61 | 48,792 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,996 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,470 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,340 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,260 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,224 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,105 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,484 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,454 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,951 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,071 |
| History of Austria | 0 | - | 4.70 | 17,860 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,381 |
| Geography of the French Empire | 0 | - | 4.45 | 27,057 |
| The French Revolution | 0 | - | 4.46 | 23,929 |
| France Multiple Choice | 0 | - | 4.39 | 40,738 |
| History of France | 0 | - | 4.59 | 56,959 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,787 |
| The Vikings! | 0 | - | 4.46 | 28,341 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,614 |
| American to British Word Translation | 0 | - | 4.14 | 139,022 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,980 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,591 |
| Champions League Winners | 0 | - | 4.92 | 1,006,387 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,202 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,178 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,766 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,082 |
| Departments of France | 0 | - | 4.93 | 54,073 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,543 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,034 |
| England or Wales? | 0 | - | 4.94 | 45,677 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,302 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,060 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,597 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,680 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,912 |
| Slavic Languages | 0 | - | 4.68 | 54,352 |
| Famous French People | 0 | - | 4.06 | 35,546 |
| Word Chain - France | 0 | - | 4.38 | 42,773 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,606 |
| Italian Foods | 0 | - | 4.30 | 72,768 |
| The Mafia Quiz | 0 | - | 4.46 | 23,317 |
| History of The Netherlands | 0 | - | 4.46 | 17,430 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,696 |
| British Spellings | 0 | - | 4.06 | 99,446 |
| British Groups of Things | 0 | - | 4.25 | 82,862 |
| British Acronyms | 0 | - | 4.40 | 45,795 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,034 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,765 |
| Geography of Scotland | 0 | - | 4.63 | 21,613 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,431 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,754 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,763 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,475 |
| Geography of Germany | 0 | - | 4.35 | 17,182 |
| History of Germany | 0 | - | 4.39 | 52,816 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,609 |
| British to American Word Translation | 0 | - | 3.74 | 255,071 |
| British Foods by Description | 0 | - | 3.94 | 48,329 |
| British and American Word Differences | 0 | - | 2.63 | 46,879 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,591 |
| Bridges of London | 0 | - | 4.17 | 10,102 |
| British Sport Trivia | 0 | - | 4.37 | 20,458 |
| Famous Welsh People | 0 | - | 4.29 | 11,478 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,155 |
| History of Russia Quiz | 0 | - | 4.47 | 31,913 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,722 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,897 |
| History of Paris | 0 | - | 4.24 | 13,646 |
| Word Chain - Germany | 0 | - | 4.31 | 22,585 |
| The Trojan War | 0 | - | 4.83 | 39,718 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,805 |
| Word Chain - Italy | 0 | - | 4.07 | 23,164 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,102 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,516 |
| Roman Emperors | 0 | - | 4.95 | 119,993 |
| Famous Nordic People | 0 | - | 4.34 | 20,109 |
| Geography of Spain | 0 | - | 4.59 | 22,073 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,855 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,340 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,526 |
| People on Money - England | 0 | - | 4.29 | 16,610 |
| Name a Valid English City | 0 | - | 4.19 | 16,724 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,093 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,132 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,107 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,857 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,523 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,446 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,569 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,497 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,803 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,662 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,980 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,394 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,024 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,267 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,931 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,215 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,228 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,566 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,711 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,422 |
| Capitals of French Regions | 0 | - | 4.45 | 16,066 |
| Capitals of German States | 0 | - | 4.74 | 28,952 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,330 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,679 |
| Ancient Greek Words | 0 | - | 4.93 | 111,563 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,163 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,675 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,511 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,089 |
| European Physical Geography | 0 | - | 4.26 | 33,502 |
| Geography of Russia | 0 | - | 4.57 | 21,525 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,953 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,994 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,122 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,117 |
| Spanish History A-Z | 0 | - | 4.37 | 19,289 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 69,965 |
| La Liga - Trofeo Pichichi | 0 | - | 4,54 | 7.142 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,023 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,655 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,348 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,456 |
| Geography of the British Empire | 0 | - | 4.48 | 39,668 |
| Champions League Top 4 | 0 | - | 4.77 | 136,368 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,121 |
| Asia Map Quiz | 0 | - | 4.99 | 916,476 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,049 |
| Countries of Africa | 0 | - | 5.00 | 2,536,032 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,802 |
| African East Coast | 0 | - | 4.96 | 96,027 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,853 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,667 |
| Australia Map Quiz | 0 | - | 4.95 | 344,560 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,804 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,877 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,193 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,645 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,971 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,389 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,556 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,867 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,998 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,675 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,486 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,125 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,705 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,905 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,663 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,166 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,186 |
