| Name the English Monarchs | 0 | - | 4.92 | 497,422 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,241 |
| Name that Greek Letter | 0 | - | 4.94 | 321,445 |
| The Trojan War | 0 | - | 4.83 | 39,399 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,363 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,982 |
| Roman Emperors | 0 | - | 4.95 | 118,302 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,256 |
| Monarchies of Europe | 0 | - | 4.90 | 97,219 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,075 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,723 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,485 |
| German History A-Z | 0 | - | 4.49 | 24,178 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,064 |
| English Royal Consorts | 0 | - | 4.37 | 37,140 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,586 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,267 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,397 |
| British History A-Z #1 | 0 | - | 4.45 | 45,754 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,644 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,658 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,789 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,304 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,254 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 69,996 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,917 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,564 |
| States of Germany | 0 | - | 4.96 | 149,810 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,917 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,910 |
| Monarchies of Asia | 0 | - | 4.97 | 70,543 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,176 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,037 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,246 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,923 |
| Countries Bordering France | 0 | - | 4.85 | 396,835 |
| Germany Country Quiz | 0 | - | 4.82 | 156,411 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,347 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,802 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,407 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,512 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,643 |
| Roman Names for Places | 0 | - | 4.62 | 57,824 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,595 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,284 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,040 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,423 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,328 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,134 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,753 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,863 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,491 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,660 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,467 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,758 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,901 |
| Counties of Ireland | 0 | - | 4.92 | 192,814 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,372 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,180 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,293 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,141 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,411 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,780 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,442 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,612 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,705 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,741 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,888 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,099 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,547 |
| Kings of France Quiz | 0 | - | 4.20 | 32,539 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,612 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,372 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,412 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,808 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,108 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,755 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,601 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,402 |
| British Monopoly Board | 0 | - | 4.52 | 41,018 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,758 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,092 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,250 |
| Countries in World War I | 0 | - | 4.88 | 226,272 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,079 |
| French History A-Z | 0 | - | 4.17 | 18,598 |
| Olympian Gods Quiz | 0 | - | 4.96 | 494,882 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,936 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,284 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,001 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,935 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,815 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,906 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 138,913 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,752 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,352 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,676 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,351 |
| The Only European Country ... | 0 | - | 4.91 | 213,523 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,340 |
| History of Russia Quiz | 0 | - | 4.49 | 31,772 |
| Germany A-Z | 0 | - | 4.56 | 62,278 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,748 |
| History of Germany | 0 | - | 4.39 | 52,592 |
| Ancient Greek Words | 0 | - | 4.92 | 110,553 |
| History of Italy | 0 | - | 4.55 | 31,800 |
| Italian History A-Z | 0 | - | 4.21 | 17,350 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,139 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,552 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,464 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,962 |
| Spanish History A-Z | 0 | - | 4.36 | 19,005 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,617 |
| Counties of England | 0 | - | 4.97 | 788,421 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,357 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,380 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,228 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,270 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,591 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,201 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,968 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,062 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,230 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,406 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,667 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,116 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,718 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,584 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,565 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,661 |
| European Countries with One Border | 0 | - | 4.97 | 181,471 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 177,979 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,128 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,155 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,076 |
| Slavic Countries | 0 | - | 4.96 | 110,775 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,627 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,102 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,011 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 66,888 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,971 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,285 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,695 |
| Regions of Italy | 0 | - | 4.92 | 74,602 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,740 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,148 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,062 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,026 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,846 |
| Animals in British History | 0 | - | 4.44 | 25,861 |
| Champions League Winners | 0 | - | 4.92 | 995,174 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,381 |
| Countries in World War II | 0 | - | 4.53 | 903,514 |
| Battle to Country | 0 | - | 4.91 | 52,444 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,722 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,300 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,985 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,009 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,481 |
| Canadian Prime Ministers | 0 | - | 4.63 | 56,973 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,105 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,990 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,324 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,046 |
| Russia Country Quiz | 0 | - | 4.85 | 113,565 |
| Countries That Border Russia | 0 | - | 4.98 | 458,570 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,797 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,000 |
| History of Austria | 0 | - | 4.70 | 17,736 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,070 |
| Departments of France | 0 | - | 4.93 | 52,681 |
| Geography of the French Empire | 0 | - | 4.48 | 26,912 |
| The French Revolution | 0 | - | 4.46 | 23,750 |
| History of France | 0 | - | 4.59 | 55,897 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,061 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,741 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,751 |
| Italy Country Quiz | 0 | - | 4.82 | 122,087 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,259 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 150,988 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,343 |
| Byzantine History | 0 | - | 4.91 | 28,585 |
| The Vikings! | 0 | - | 4.45 | 28,235 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,379 |
| Finland Country Quiz | 0 | - | 4.50 | 59,047 |
| Norway Country Quiz | 0 | - | 4.44 | 76,547 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,829 |
| The Portuguese Empire | 0 | - | 4.54 | 11,980 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,875 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,528 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,028 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,118 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,154 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,702 |
| Geography of the British Empire | 0 | - | 4.48 | 39,462 |
| Medieval English History | 0 | - | 4.53 | 43,292 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,393 |
| England or Wales? | 0 | - | 4.94 | 45,283 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,303 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,453 |
