| Name the English Monarchs | 0 | - | 4.92 | 497,773 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,731 |
| Name that Greek Letter | 0 | - | 4.94 | 321,607 |
| The Trojan War | 0 | - | 4.83 | 39,422 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,501 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,034 |
| Roman Emperors | 0 | - | 4.95 | 118,428 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,289 |
| Monarchies of Europe | 0 | - | 4.90 | 97,292 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,233 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,968 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,513 |
| German History A-Z | 0 | - | 4.49 | 24,213 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,252 |
| English Royal Consorts | 0 | - | 4.37 | 37,157 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,602 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,341 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,443 |
| British History A-Z #1 | 0 | - | 4.45 | 45,798 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,667 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,674 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,902 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,387 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,351 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,080 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,988 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,665 |
| States of Germany | 0 | - | 4.96 | 149,987 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,995 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,935 |
| Monarchies of Asia | 0 | - | 4.97 | 70,589 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,220 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,098 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,451 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,113 |
| Countries Bordering France | 0 | - | 4.83 | 398,715 |
| Germany Country Quiz | 0 | - | 4.82 | 156,495 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,425 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,874 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,425 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,527 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,658 |
| Roman Names for Places | 0 | - | 4.62 | 57,863 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,605 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,310 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,083 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,428 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,336 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,220 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,316 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,943 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,507 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,756 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,512 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,788 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,927 |
| Counties of Ireland | 0 | - | 4.92 | 192,994 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,432 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,277 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,341 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,251 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,469 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,794 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,561 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,701 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,747 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,064 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,107 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,130 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,579 |
| Kings of France Quiz | 0 | - | 4.20 | 32,549 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,621 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,382 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,420 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,859 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,116 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,830 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,655 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,449 |
| British Monopoly Board | 0 | - | 4.52 | 41,027 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,818 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,200 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,371 |
| Countries in World War I | 0 | - | 4.88 | 226,564 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,257 |
| French History A-Z | 0 | - | 4.17 | 18,649 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,850 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,949 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,333 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,018 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,948 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,829 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,935 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,072 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,919 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,050 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,509 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,494 |
| The Only European Country ... | 0 | - | 4.91 | 213,750 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,475 |
| History of Russia Quiz | 0 | - | 4.49 | 31,788 |
| Germany A-Z | 0 | - | 4.56 | 62,311 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,753 |
| History of Germany | 0 | - | 4.39 | 52,612 |
| Ancient Greek Words | 0 | - | 4.92 | 110,652 |
| History of Italy | 0 | - | 4.55 | 31,811 |
| Italian History A-Z | 0 | - | 4.21 | 17,380 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,436 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,610 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,477 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,977 |
| Spanish History A-Z | 0 | - | 4.36 | 19,028 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,656 |
| Counties of England | 0 | - | 4.97 | 788,981 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,379 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,390 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,743 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,315 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,682 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,264 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,025 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,260 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,338 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,449 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,814 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,192 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,737 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,769 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,814 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,773 |
| European Countries with One Border | 0 | - | 4.97 | 181,584 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,494 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,209 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,225 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,169 |
| Slavic Countries | 0 | - | 4.96 | 110,829 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,923 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,170 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,090 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 66,902 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,981 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,287 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,883 |
| Regions of Italy | 0 | - | 4.92 | 74,677 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,787 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,291 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,127 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,040 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,887 |
| Animals in British History | 0 | - | 4.44 | 25,868 |
| Champions League Winners | 0 | - | 4.92 | 996,049 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,424 |
| Countries in World War II | 0 | - | 4.53 | 904,247 |
| Battle to Country | 0 | - | 4.91 | 52,498 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,840 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,345 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,075 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,062 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,508 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,032 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,207 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,152 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,662 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,202 |
| Russia Country Quiz | 0 | - | 4.85 | 113,618 |
| Countries That Border Russia | 0 | - | 4.98 | 458,830 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,834 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,025 |
| History of Austria | 0 | - | 4.70 | 17,743 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,154 |
| Departments of France | 0 | - | 4.93 | 52,777 |
| Geography of the French Empire | 0 | - | 4.48 | 26,923 |
| The French Revolution | 0 | - | 4.46 | 23,776 |
| History of France | 0 | - | 4.59 | 55,995 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,124 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,765 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,765 |
| Italy Country Quiz | 0 | - | 4.82 | 122,161 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,330 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,046 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,357 |
| Byzantine History | 0 | - | 4.91 | 28,611 |
| The Vikings! | 0 | - | 4.45 | 28,244 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,418 |
| Finland Country Quiz | 0 | - | 4.50 | 59,100 |
| Norway Country Quiz | 0 | - | 4.44 | 76,605 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,852 |
| The Portuguese Empire | 0 | - | 4.54 | 11,988 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,936 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,614 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,064 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,223 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,167 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,755 |
| Geography of the British Empire | 0 | - | 4.48 | 39,467 |
| Medieval English History | 0 | - | 4.53 | 43,312 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,402 |
| England or Wales? | 0 | - | 4.94 | 45,306 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,442 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,482 |
