| Counties of England | 0 | - | 4.97 | 788,442 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,189 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,270 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,937 |
| Monarchies of Europe | 0 | - | 4.90 | 97,225 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,129 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,015 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,569 |
| States of Germany | 0 | - | 4.96 | 149,815 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,920 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,486 |
| Regions of Italy | 0 | - | 4.92 | 74,607 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,743 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,155 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,064 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,849 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,393 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,482 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,180 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,040 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,720 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,262 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,930 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,027 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,906 |
| Name the English Monarchs | 0 | - | 4.92 | 497,447 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,761 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,094 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,363 |
| The Only European Country ... | 0 | - | 4.91 | 213,535 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,345 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| British Acronyms | 0 | - | 4.39 | 45,603 |
| NATO Countries | 0 | - | 4.98 | 275,204 |
| EU Countries Quiz | 0 | - | 4.99 | 269,507 |
| History of Italy | 0 | - | 4.55 | 31,800 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,465 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,963 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,358 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,463 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,709 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,597 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,207 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,074 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,408 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,588 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,581 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,167 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,079 |
| Slavic Countries | 0 | - | 4.96 | 110,779 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,016 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,906 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,252 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,316 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 110,828 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,766 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,638 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,164 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,786 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,624 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,586 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,991 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,243 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,557 |
| Regions of France | 0 | - | 4.78 | 119,048 |
| France Immigration by Country | 0 | - | 4.72 | 75,923 |
| Famous Germans | 0 | - | 4.50 | 54,566 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,400 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,259 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,738 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,869 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,970 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,236 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,681 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,120 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,101 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,680 |
| European Countries with One Border | 0 | - | 4.97 | 181,480 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,992 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,795 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,659 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,637 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,109 |
| History of Austria | 0 | - | 4.70 | 17,738 |
| Geography of the French Empire | 0 | - | 4.48 | 26,915 |
| The French Revolution | 0 | - | 4.46 | 23,752 |
| History of France | 0 | - | 4.59 | 55,901 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,372 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| The Portuguese Empire | 0 | - | 4.54 | 11,980 |
| American to British Word Translation | 0 | - | 4.06 | 117,014 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,689 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,962 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,169 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,454 |
| People on Money - England | 0 | - | 4.29 | 16,559 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,290 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,154 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,709 |
| Geography of the British Empire | 0 | - | 4.48 | 39,463 |
| Champions League Winners | 0 | - | 4.92 | 995,226 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,931 |
| Monarchies of Asia | 0 | - | 4.97 | 70,545 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,383 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,989 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,011 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,000 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,347 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,058 |
| Russia Country Quiz | 0 | - | 4.85 | 113,570 |
| Countries That Border Russia | 0 | - | 4.98 | 458,589 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,798 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,002 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,074 |
| Departments of France | 0 | - | 4.93 | 52,682 |
| Countries Bordering France | 0 | - | 4.85 | 397,039 |
| Germany Country Quiz | 0 | - | 4.82 | 156,415 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,066 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,745 |
| Italy Country Quiz | 0 | - | 4.82 | 122,092 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,265 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 150,992 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,344 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,878 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,530 |
| England or Wales? | 0 | - | 4.94 | 45,283 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,307 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,456 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,575 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,456 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,153 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,395 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,841 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,213 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,433 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,110 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,886 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,268 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,048 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,475 |
| European Geography A-Z | 0 | - | 4.28 | 48,959 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,834 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,733 |
| The Mafia Quiz | 0 | - | 4.46 | 23,194 |
| Canary Islands | 0 | - | 4.61 | 17,389 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,095 |
| British Spellings | 0 | - | 4.07 | 99,190 |
| British Groups of Things | 0 | - | 4.25 | 82,657 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| Biggest Immigrant Groups by Decade in the UK | 0 | - | 4.62 | 24,376 |
| British Monopoly Board | 0 | - | 4.52 | 41,022 |
| OPEC Countries | 0 | - | 4.74 | 84,786 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,089 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,051 |
| U.S. States by Governor | 0 | - | 4.43 | 17,972 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,558 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,530 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,138 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,079 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,756 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,783 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,753 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,870 |
| Countries that Border Poland | 0 | - | 4.99 | 171,231 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,337 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,185 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,618 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,587 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,519 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,656 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,492 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,360 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,664 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,472 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,758 |
| Geography of Germany | 0 | - | 4.35 | 17,078 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,071 |
| History of Germany | 0 | - | 4.39 | 52,593 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,281 |
| Name that Greek Letter | 0 | - | 4.94 | 321,455 |
| Counties of Ireland | 0 | - | 4.92 | 192,830 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,377 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,189 |
| History of Spain | 0 | - | 4.29 | 20,992 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,153 |
| British to American Word Translation | 0 | - | 3.74 | 253,276 |
| British Foods by Description | 0 | - | 3.94 | 48,224 |
| British and American Word Differences | 0 | - | 2.67 | 45,905 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,495 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,449 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,684 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,067 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,257 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,166 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,618 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,708 |
| Bridges of London | 0 | - | 4.17 | 10,061 |
| British Sport Trivia | 0 | - | 4.37 | 20,351 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,748 |
