| English Monarchs Quiz | 0 | - | 4.91 | 450,987 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 588,893 |
| Houses of British Monarchs | 0 | - | 4.50 | 52,529 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,487 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,097 |
| Roman Emperors | 0 | - | 4.95 | 96,860 |
| Monarchies of Europe | 0 | - | 4.88 | 87,659 |
| Name that Greek Letter | 0 | - | 4.94 | 297,356 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 103,432 |
| Countries Bordering Germany | 0 | - | 4.99 | 342,854 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,851 |
| English Royal Consorts | 0 | - | 4.28 | 34,715 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,815 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 52,942 |
| British History A-Z | 0 | - | 4.47 | 39,841 |
| Countries that Beat Germany | 0 | - | 4.87 | 70,911 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,882 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,292 |
| German History A-Z | 0 | - | 4.17 | 13,440 |
| Monarchies of Asia | 0 | - | 4.95 | 54,475 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 134,997 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 63,842 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 50,367 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,633 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 47,105 |
| States of Germany Map Quiz | 0 | - | 4.92 | 121,428 |
| States of Germany | 0 | - | 4.93 | 125,594 |
| Germany Immigration by Country | 0 | - | 4.90 | 70,594 |
| Country Quiz on a Map - Germany | 0 | - | 4.93 | 27,538 |
| Countries Italy Declared War On | 0 | - | 4.78 | 40,224 |
| Geography of the Roman Empire | 0 | - | 4.57 | 48,745 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,258 |
| Roman Names for Places | 0 | - | 4.66 | 41,942 |
| The Reign of Henry VIII | 0 | - | 4.24 | 26,378 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,732 |
| British History Quiz for Dummies | 0 | - | 4.54 | 62,108 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.29 | 23,437 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 22,281 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 182,116 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 116,401 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 203,264 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 144,841 |
| Countries Bordering France | 0 | - | 4.87 | 359,863 |
| Germany Country Quiz | 0 | - | 4.82 | 141,615 |
| The Trojan War | 0 | - | 4.80 | 36,192 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.55 | 56,523 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,905 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,579 |
| Countries Closest to Spain | 0 | - | 4.95 | 207,435 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,613 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 106,248 |
| World Capitals Closest to London | 0 | - | 4.91 | 94,125 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 87,036 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 352,056 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,193 |
| Europe Map Quiz | 0 | - | 5.00 | 4,327,430 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 77,517 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,730 |
| Countries that Visit France the Most | 0 | - | 4.81 | 40,278 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,699 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 22,380 |
| Countries Bordering Italy | 0 | - | 4.95 | 95,180 |
| Countries Closest to Italy | 0 | - | 4.97 | 180,837 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.81 | 10,134 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,586 |
| Greenland Country Quiz | 0 | - | 4.81 | 32,659 |
| Countries Closest to Iceland | 0 | - | 4.87 | 63,521 |
| Countries that Beat Portugal | 0 | - | 4.84 | 36,074 |
| Countries that Beat Spain | 0 | - | 4.95 | 56,290 |
| British Monopoly Board | 0 | - | 4.51 | 39,366 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,880 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,417 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 389,908 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,203 |
| Country Quiz on a Map - France | 0 | - | 4.97 | 39,662 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.49 | 36,063 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,527 |
| Countries that Beat Italy | 0 | - | 4.88 | 46,021 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 210,001 |
| Countries in World War I | 0 | - | 4.88 | 211,113 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,365 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,842 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,841 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.95 | 110,078 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 338,120 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,307 |
| French History A-Z | 0 | - | 4.15 | 12,588 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,548 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,407 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,231 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,578 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,029 |
| Spanish History A-Z | 0 | - | 4.30 | 11,342 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,558 |
| Counties of England | 0 | - | 4.97 | 698,232 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,888 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,840 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,057,092 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,198,725 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 94,191 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,219 |
| The Only European Country ... | 0 | - | 4.93 | 181,221 |
| Germany A-Z | 0 | - | 4.65 | 50,214 |
| Famous Germans by Picture | 0 | - | 4.09 | 15,643 |
| History of Germany Quiz | 0 | - | 4.35 | 40,356 |
| Ancient Greek Words | 0 | - | 4.90 | 98,487 |
| Italian History A-Z | 0 | - | 4.13 | 8,908 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,310 |
| Regions of Spain Quiz | 0 | - | 4.87 | 96,294 |
| Cantons of Switzerland | 0 | - | 4.97 | 40,914 |
| 100 Greatest Britons Quiz | 0 | - | 4.43 | 46,159 |
| British Acronyms | 0 | - | 4.41 | 43,560 |
| Countries and Territories of the United Kingdom | 0 | - | 4.88 | 84,489 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 277,274 |
| Champions League Winners | 0 | - | 4.91 | 875,601 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 179,172 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 139,552 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 84,751 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 188,754 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 122,399 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 77,727 |
| Three Band Flags of Europe | 0 | - | 4.97 | 162,490 |
| Catholic Countries in Europe | 0 | - | 4.87 | 84,648 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,682 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 287,440 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 117,957 |
| Pixelated Europe Map | 0 | - | 4.90 | 110,348 |
| European Countries with One Border | 0 | - | 4.96 | 151,871 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 145,509 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 75,744 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 116,460 |
| Slavic Countries | 0 | - | 4.96 | 101,178 |
| Federal Subjects of Russia | 0 | - | 4.95 | 114,747 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,696 |
| Regions of France Map Quiz | 0 | - | 4.96 | 128,488 |
| France Immigration by Country | 0 | - | 4.81 | 69,618 |
| Kings of France Quiz | 0 | - | 4.15 | 30,392 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.33 | 64,447 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 22,118 |
| Ancient Greece A-Z | 0 | - | 4.63 | 20,924 |
| Ancient Greek Inventions | 0 | - | 4.17 | 15,564 |
| Figures from Greek Mythology | 0 | - | 4.92 | 170,275 |
| Counties of Ireland | 0 | - | 4.90 | 161,616 |
| Regions of Italy | 0 | - | 4.89 | 61,296 |
| Countries in World War II | 0 | - | 4.57 | 819,599 |
| Battle to Country | 0 | - | 4.92 | 36,242 |
| Byzantine History | 0 | - | 4.87 | 26,399 |
| The Vikings! | 0 | - | 4.45 | 27,221 |
| Denmark Country Quiz | 0 | - | 4.79 | 70,126 |
| Finland Country Quiz | 0 | - | 4.48 | 53,418 |
| Norway Country Quiz | 0 | - | 4.37 | 58,515 |
| Iceland Country Quiz | 0 | - | 4.66 | 39,162 |
| The Portuguese Empire | 0 | - | 4.54 | 11,379 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 87,122 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 170,680 |
| Countries Bordering Spain | 0 | - | 4.50 | 64,832 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,384 |
| Wives of King Henry VIII | 0 | - | 4.55 | 49,002 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,199 |
| Geography of the British Empire | 0 | - | 4.51 | 37,263 |
| Medieval English History | 0 | - | 4.52 | 41,065 |
| England or Wales? | 0 | - | 4.93 | 40,651 |
| All Champions League Teams Ever | 0 | - | 4.90 | 106,677 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,966 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 102,701 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,067 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 83,413 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,553 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,607 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 80,509 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,236 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,923 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,194 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,614 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 249,024 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 191,399 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 85,266 |
| Russia Country Quiz | 0 | - | 4.84 | 104,245 |
| History of Russia Quiz | 0 | - | 4.48 | 30,013 |
| Countries That Border Russia | 0 | - | 4.98 | 429,124 |
| Croatia Country Quiz | 0 | - | 4.81 | 37,811 |
| History of Austria | 0 | - | 4.69 | 16,495 |
| France Cities Map Quiz | 0 | - | 4.96 | 149,478 |
| Geography of the French Empire | 0 | - | 4.49 | 25,533 |
| The French Revolution | 0 | - | 4.45 | 22,063 |
| History of France Quiz | 0 | - | 4.55 | 39,888 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 107,088 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,661 |
| History of Ireland Quiz | 0 | - | 4.44 | 19,067 |
| Italy Country Quiz | 0 | - | 4.81 | 110,260 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 135,121 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 138,955 |
| History of Italy | 0 | - | 4.49 | 29,931 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,828 |
| History of The Netherlands | 0 | - | 4.43 | 15,870 |
| Countries that Beat the Netherlands | 0 | - | 4.58 | 33,707 |
| Most-Visited Countries by Swedes | 0 | - | 4.65 | 50,639 |
| Arthurian Legend | 0 | - | 4.35 | 24,333 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,516 |
| British Geography Quiz #1 | 0 | - | 4.53 | 45,888 |
