| Name the English Monarchs | 0 | - | 4.92 | 499,993 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,470 |
| Name that Greek Letter | 0 | - | 4.93 | 322,493 |
| British History A-Z #1 | 0 | - | 4.45 | 46,291 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,822 |
| The Trojan War | 0 | - | 4.83 | 39,553 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,130 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,269 |
| Roman Emperors | 0 | - | 4.95 | 119,204 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,029 |
| Countries Bordering France | 0 | - | 4.83 | 401,050 |
| German History A-Z | 0 | - | 4.49 | 24,509 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,930 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,627 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,690 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,970 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,681 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,460 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,858 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,087 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,734 |
| British Geography A-Z | 0 | - | 4.41 | 19,464 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,772 |
| Monarchies of Europe | 0 | - | 4.90 | 97,680 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,503 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,834 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,931 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,473 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,350 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,728 |
| Italian History A-Z | 0 | - | 4.21 | 17,623 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,134 |
| Spanish History A-Z | 0 | - | 4.37 | 19,222 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,321 |
| English Royal Consorts | 0 | - | 4.37 | 37,265 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,611 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,461 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,702 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,042 |
| Departments of France | 0 | - | 4.93 | 53,270 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,962 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,235 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,534 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,621 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,780 |
| Roman Names for Places | 0 | - | 4.62 | 58,043 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,476 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,330 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,917 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,744 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,028 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,441 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,018 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,337 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,074 |
| Counties of Ireland | 0 | - | 4.92 | 193,963 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,629 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,865 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,631 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,193 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,326 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,816 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,428 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,751 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,031 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,995 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,962 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,431 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,108 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,489 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,289 |
| Geography of the French Empire | 0 | - | 4.45 | 26,997 |
| The French Revolution | 0 | - | 4.46 | 23,857 |
| Kings of France Quiz | 0 | - | 4.20 | 32,625 |
| History of France | 0 | - | 4.59 | 56,591 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,798 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,733 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,452 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,119 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,134 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,131 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,942 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,650 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,109 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,829 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,666 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,460 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,221 |
| Countries in World War I | 0 | - | 4.88 | 227,382 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,163 |
| Countries that Beat France | 0 | - | 4.49 | 75,434 |
| France True or False? | 0 | - | 4.43 | 39,857 |
| French History Multiple Choice | 0 | - | 4.55 | 32,941 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,301 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,015 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,525 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,079 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,038 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,892 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,386 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,146 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,916 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,753 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,872 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,184 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,311 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,265 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,264 |
| The Only European Country ... | 0 | - | 4.91 | 215,045 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,269 |
| History of Russia Quiz | 0 | - | 4.49 | 31,839 |
| Germany A-Z | 0 | - | 4.56 | 62,454 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,125 |
| Ancient Greek Words | 0 | - | 4.93 | 111,082 |
| Mythology A-Z | 0 | - | 4.31 | 37,097 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Italy A-Z | 0 | - | 4.49 | 57,991 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,075 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,826 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,557 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Counties of England | 0 | - | 4.97 | 792,322 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,710 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,455 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,390 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,798 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,607 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,117 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,678 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,332 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,350 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,891 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,743 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,464 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,571 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,844 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,228 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,363 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,219 |
| European Countries with One Border | 0 | - | 4.97 | 182,086 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,953 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,669 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,713 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,510 |
| Slavic Countries | 0 | - | 4.96 | 111,221 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,217 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,517 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,151 |
| French Inventions | 0 | - | 4.08 | 13,875 |
| Regions of France | 0 | - | 4.77 | 119,913 |
| France Immigration by Country | 0 | - | 4.72 | 76,173 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,122 |
| States of Germany | 0 | - | 4.96 | 151,024 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,354 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,311 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,800 |
| Regions of Italy | 0 | - | 4.92 | 75,176 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,795 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,145 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,713 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,150 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,320 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,902 |
| Animals in British History | 0 | - | 4.44 | 25,930 |
| London A-Z | 0 | - | 4.10 | 40,694 |
| Champions League Winners | 0 | - | 4.92 | 1,000,476 |
| Monarchies of Asia | 0 | - | 4.97 | 70,819 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,615 |
| Countries in World War II | 0 | - | 4.54 | 908,205 |
| Battle to Country | 0 | - | 4.91 | 52,887 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,291 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,749 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,594 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,441 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,676 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,268 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,036 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,679 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,602 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,863 |
| Russia Country Quiz | 0 | - | 4.85 | 114,020 |
| Russia A-Z | 0 | - | 4.46 | 27,185 |
| Countries That Border Russia | 0 | - | 4.98 | 460,261 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,077 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,186 |
| History of Austria | 0 | - | 4.70 | 17,796 |
| France Country Quiz | 0 | - | 4.70 | 134,451 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,678 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,716 |
| Germany Country Quiz | 0 | - | 4.82 | 157,142 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,528 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,865 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,836 |
| Italy Country Quiz | 0 | - | 4.82 | 122,642 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,791 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,431 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,429 |
