| Name the English Monarchs | 0 | - | 4.92 | 498,210 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,260 |
| Name that Greek Letter | 0 | - | 4.94 | 321,780 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,986 |
| The Trojan War | 0 | - | 4.83 | 39,455 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,627 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,081 |
| Roman Emperors | 0 | - | 4.95 | 118,556 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,397 |
| Countries Bordering France | 0 | - | 4.83 | 399,633 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,559 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,835 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,631 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,015 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,478 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,491 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,174 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,072 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,269 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,944 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,452 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,547 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,690 |
| Roman Names for Places | 0 | - | 4.62 | 57,894 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,317 |
| Departments of France | 0 | - | 4.93 | 52,884 |
| French History A-Z | 0 | - | 4.21 | 22,527 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,191 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,559 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,645 |
| British History A-Z #1 | 0 | - | 4.45 | 45,984 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,346 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,151 |
| Europe Map Quiz | 0 | - | 5.00 | 4,733,028 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,017 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,821 |
| History of France | 0 | - | 4.59 | 56,134 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,457 |
| Counties of Ireland | 0 | - | 4.92 | 193,176 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,480 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,391 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,417 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,386 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,165 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,562 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,734 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,867 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,783 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,805 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,430 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,409 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,172 |
| Geography of the French Empire | 0 | - | 4.48 | 26,943 |
| The French Revolution | 0 | - | 4.46 | 23,790 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,433 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,494 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,425 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,910 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,118 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,890 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,709 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,491 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,885 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,399 |
| English Royal Consorts | 0 | - | 4.37 | 37,184 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,622 |
| The Vietnam War | 0 | - | 4.43 | 35,306 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,476 |
| Countries in World War I | 0 | - | 4.88 | 226,677 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,440 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,518 |
| Countries that Beat France | 0 | - | 4.49 | 75,197 |
| France True or False? | 0 | - | 4.43 | 39,793 |
| French History Multiple Choice | 0 | - | 4.55 | 32,884 |
| German History A-Z | 0 | - | 4.49 | 24,320 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,582 |
| Ancient Greek Words | 0 | - | 4.92 | 110,745 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,966 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,371 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,039 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,714 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,970 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,843 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,688 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,241 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,508 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,114 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,693 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,417 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,671 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,748 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,342 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,466 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,509 |
| The Only European Country ... | 0 | - | 4.91 | 213,993 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,968 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,074 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,656 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,812 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,425 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,318 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,241 |
| Slavic Countries | 0 | - | 4.96 | 110,904 |
| History of Russia Quiz | 0 | - | 4.49 | 31,798 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,102 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,541 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,993 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,293 |
| History of Italy | 0 | - | 4.55 | 31,830 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,732 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,491 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,990 |
| Arthurian Legend | 0 | - | 4.33 | 25,050 |
| Counties of England | 0 | - | 4.97 | 789,638 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,530 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,817 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,401 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,620 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,432 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,551 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,242 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,879 |
| The American Revolution | 0 | - | 4.52 | 54,065 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,365 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,076 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,458 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,951 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,861 |
| Monarchies of Europe | 0 | - | 4.90 | 97,368 |
| European Countries with One Border | 0 | - | 4.97 | 181,691 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,593 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,312 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,136 |
| Countries That Border Russia | 0 | - | 4.98 | 459,056 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,248 |
| France Country Quiz | 0 | - | 4.70 | 133,908 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Regions of France | 0 | - | 4.78 | 119,344 |
| France Immigration by Country | 0 | - | 4.72 | 75,989 |
| History of Paris | 0 | - | 4.24 | 13,617 |
| Kings of France Quiz | 0 | - | 4.20 | 32,570 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,777 |
| States of Germany | 0 | - | 4.96 | 150,202 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,073 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,951 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,076 |
| Regions of Italy | 0 | - | 4.92 | 74,795 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,869 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,436 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,258 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,071 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,202 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,846 |
| Geography of the British Empire | 0 | - | 4.48 | 39,496 |
| Animals in British History | 0 | - | 4.44 | 25,877 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,347 |
| Champions League Winners | 0 | - | 4.92 | 996,934 |
| Countries in World War II | 0 | - | 4.54 | 905,040 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,961 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,900 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,197 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,403 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,700 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,657,145 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,338 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,072 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,289 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,151 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,803 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,874 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,200 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,323 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,865 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,137 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,671 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,345 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,266 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,005 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,320 |
| Countries that Border Poland | 0 | - | 4.99 | 171,419 |
| Russia Country Quiz | 0 | - | 4.85 | 113,690 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,399 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,627 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,878 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,728 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,056 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,790 |
| History of Austria | 0 | - | 4.70 | 17,760 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,278 |
| Countries Two Borders Away From France | 0 | - | 4.36 | 27,493 |
| Famous French People by Picture | 0 | - | 3.70 | 27,815 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,635 |
| Germany Country Quiz | 0 | - | 4.82 | 156,644 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,211 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,389 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,760 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,606 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,788 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,776 |
