| Regions of Spain Quiz | 0 | - | 4.90 | 114,064 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,774 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,379 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,059 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,249 |
| States of Germany | 0 | - | 4.95 | 152,755 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,106 |
| Regions of Italy | 0 | - | 4.92 | 75,991 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,245 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,255 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,712 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,185 |
| Official European Union Languages | 0 | - | 4.97 | 238,609 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,930 |
| Languages of Spain | 0 | - | 4.36 | 23,327 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,381 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,911 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,485 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,012 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,839 |
| Name that Greek Letter | 0 | - | 4.93 | 323,729 |
| Canary Islands | 0 | - | 4.62 | 17,484 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,856 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,147 |
| History of Italy | 0 | - | 4.55 | 31,992 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,821 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,675 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,145 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,396 |
| Celtic Nations | 0 | - | 4.69 | 46,959 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,876 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,411 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,719 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,113 |
| History of Spain | 0 | - | 4.23 | 21,095 |
| Counties of England | 0 | - | 4.97 | 797,449 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,409 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,489 |
| Regions of France | 0 | - | 4.72 | 120,918 |
| France Immigration by Country | 0 | - | 4.70 | 76,563 |
| Famous Germans | 0 | - | 4.50 | 55,328 |
| German Groups of Things | 0 | - | 4.46 | 38,487 |
| Germany True or False? | 0 | - | 4.61 | 48,832 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,051 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,536 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,409 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,282 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,291 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,186 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,512 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,692 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,048 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,485 |
| History of Austria | 0 | - | 4.70 | 17,868 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,522 |
| Geography of the French Empire | 0 | - | 4.45 | 27,091 |
| The French Revolution | 0 | - | 4.47 | 23,980 |
| France Multiple Choice | 0 | - | 4.39 | 40,748 |
| History of France | 0 | - | 4.59 | 57,055 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,906 |
| The Vikings! | 0 | - | 4.46 | 28,352 |
| The Portuguese Empire | 0 | - | 4.58 | 12,068 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,615 |
| American to British Word Translation | 0 | - | 4.14 | 139,139 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,037 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,778 |
| Champions League Winners | 0 | - | 4.92 | 1,007,453 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,262 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,437 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,003 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,232 |
| Departments of France | 0 | - | 4.93 | 54,204 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,561 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,050 |
| England or Wales? | 0 | - | 4.94 | 45,723 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,494 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,111 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,610 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,660 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,743 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,098 |
| Slavic Languages | 0 | - | 4.68 | 54,387 |
| Famous French People | 0 | - | 4.07 | 35,640 |
| Word Chain - France | 0 | - | 4.38 | 42,790 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,629 |
| Italian Foods | 0 | - | 4.30 | 72,816 |
| The Mafia Quiz | 0 | - | 4.46 | 23,333 |
| History of The Netherlands | 0 | - | 4.46 | 17,442 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,740 |
| British Spellings | 0 | - | 4.06 | 99,467 |
| British Groups of Things | 0 | - | 4.25 | 82,880 |
| British Acronyms | 0 | - | 4.40 | 45,808 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,042 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,843 |
| Geography of Scotland | 0 | - | 4.63 | 21,627 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,487 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,045 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,787 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,490 |
| Geography of Germany | 0 | - | 4.35 | 17,192 |
| History of Germany | 0 | - | 4.39 | 52,840 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,620 |
| British to American Word Translation | 0 | - | 3.74 | 255,108 |
| British Foods by Description | 0 | - | 3.94 | 48,332 |
| British and American Word Differences | 0 | - | 2.63 | 46,885 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,601 |
| Bridges of London | 0 | - | 4.17 | 10,110 |
| British Sport Trivia | 0 | - | 4.37 | 20,466 |
| Famous Welsh People | 0 | - | 4.31 | 11,517 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,316 |
| History of Russia Quiz | 0 | - | 4.47 | 31,926 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,743 |
| Movies Set in France | 0 | - | 4.26 | 13,123 |
| French Inventions | 0 | - | 4.08 | 13,900 |
| History of Paris | 0 | - | 4.24 | 13,654 |
| Word Chain - Germany | 0 | - | 4.31 | 22,592 |
| The Trojan War | 0 | - | 4.83 | 39,750 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,947 |
| Word Chain - Italy | 0 | - | 4.07 | 23,169 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,111 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,561 |
| Roman Emperors | 0 | - | 4.95 | 120,136 |
| Famous Nordic People | 0 | - | 4.34 | 20,136 |
| Geography of Spain | 0 | - | 4.59 | 22,081 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,890 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,346 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,535 |
| People on Money - England | 0 | - | 4.29 | 16,617 |
| Name a Valid English City | 0 | - | 4.19 | 16,734 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,287 |
| Australian Capitals | 0 | - | 4.92 | 62,731 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,403 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,662 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,114 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,746 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,611 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,784 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,624 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,927 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,773 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,065 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,512 |
| Europe Map Quiz | 0 | - | 5.00 | 4,764,968 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,298 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,966 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,245 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,245 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,664 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,742 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,478 |
| Capitals of French Regions | 0 | - | 4.45 | 16,083 |
| Capitals of German States | 0 | - | 4.74 | 28,969 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,354 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,116 |
| Ancient Greek Words | 0 | - | 4.93 | 111,690 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,426 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,804 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,822 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,755 |
| European Physical Geography | 0 | - | 4.26 | 33,519 |
| Geography of Russia | 0 | - | 4.57 | 21,540 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,975 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,350 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,176 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,153 |
| Spanish History A-Z | 0 | - | 4.37 | 19,306 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 70,043 |
| La Liga - Trofeo Pichichi | 0 | - | 4,54 | 7.154 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,067 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,679 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,359 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,536 |
| Geography of the British Empire | 0 | - | 4.48 | 39,699 |
| Champions League Top 4 | 0 | - | 4.77 | 136,653 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,598 |
| Asia Map Quiz | 0 | - | 4.99 | 917,401 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,117 |
| Countries of Africa | 0 | - | 5.00 | 2,538,977 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,900 |
| African East Coast | 0 | - | 4.96 | 96,116 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,964 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,766 |
| Australia Map Quiz | 0 | - | 4.95 | 344,737 |
| United States Map Quiz | 0 | - | 4.98 | 4,159,809 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,904 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,400 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,672 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,173 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,606 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,856 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,020 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,137 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,810 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,615 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,255 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,800 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,972 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,693 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,250 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,359 |
