| Name the English Monarchs | 0 | - | 4.91 | 501,755 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,403 |
| Name that Greek Letter | 0 | - | 4.93 | 323,173 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,269 |
| The Trojan War | 0 | - | 4.83 | 39,664 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,607 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,441 |
| Roman Emperors | 0 | - | 4.95 | 119,718 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,618 |
| Countries Bordering France | 0 | - | 4.83 | 402,037 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,731 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,806 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,109 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,084 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,906 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,954 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 77,713 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,351 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,760 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,662 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,219 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,515 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,619 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,705 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,869 |
| Roman Names for Places | 0 | - | 4.62 | 58,205 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,751 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,600 |
| Departments of France | 0 | - | 4.93 | 53,885 |
| French History A-Z | 0 | - | 4.23 | 24,572 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,714 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,026 |
| British History A-Z #1 | 0 | - | 4.45 | 46,419 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,601 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,500 |
| Europe Map Quiz | 0 | - | 5.00 | 4,757,132 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,851 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,218 |
| History of France | 0 | - | 4.59 | 56,872 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,239 |
| Counties of Ireland | 0 | - | 4.92 | 194,799 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,772 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,787 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,967 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,716 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,596 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,135 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,294 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,085 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,561 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,723 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,545 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,662 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,419 |
| Geography of the French Empire | 0 | - | 4.45 | 27,034 |
| The French Revolution | 0 | - | 4.46 | 23,913 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,155 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,934 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,482 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,349 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,169 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,425 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,185 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,810 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,418 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,225 |
| English Royal Consorts | 0 | - | 4.37 | 37,332 |
| The Vietnam War | 0 | - | 4.44 | 35,490 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,763 |
| Countries in World War I | 0 | - | 4.88 | 227,886 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,085 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,300 |
| Countries that Beat France | 0 | - | 4.49 | 75,655 |
| France True or False? | 0 | - | 4.44 | 39,916 |
| French History Multiple Choice | 0 | - | 4.55 | 33,006 |
| German History A-Z | 0 | - | 4.49 | 24,581 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,806 |
| Ancient Greek Words | 0 | - | 4.93 | 111,408 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,061 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,685 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,133 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,149 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,111 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,929 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,815 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,719 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,141 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,648 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,240,882 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,721 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,920 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,480 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,026 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,275 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,032 |
| The Only European Country ... | 0 | - | 4.91 | 216,126 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,085 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,872 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,854 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,122 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,303 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,068 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,804 |
| Slavic Countries | 0 | - | 4.96 | 111,528 |
| History of Russia Quiz | 0 | - | 4.49 | 31,887 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,204 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,756 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,123 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,333 |
| History of Italy | 0 | - | 4.55 | 31,945 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,477 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,631 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,180 |
| Arthurian Legend | 0 | - | 4.33 | 25,100 |
| Counties of England | 0 | - | 4.97 | 795,194 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,807 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,025 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,624 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,722 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,490 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,599 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,795 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,188 |
| The American Revolution | 0 | - | 4.52 | 54,224 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,716 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,309 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,005 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,555 |
| Monarchies of Europe | 0 | - | 4.90 | 97,992 |
| European Countries with One Border | 0 | - | 4.97 | 182,565 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,380 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,059 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,558 |
| Countries That Border Russia | 0 | - | 4.98 | 461,245 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,768 |
| France Country Quiz | 0 | - | 4.70 | 134,822 |
| French Inventions | 0 | - | 4.08 | 13,891 |
| Regions of France | 0 | - | 4.75 | 120,499 |
| France Immigration by Country | 0 | - | 4.70 | 76,428 |
| History of Paris | 0 | - | 4.24 | 13,641 |
| Kings of France Quiz | 0 | - | 4.20 | 32,691 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,593 |
| States of Germany | 0 | - | 4.96 | 152,051 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,921 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,244 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,546 |
| Regions of Italy | 0 | - | 4.92 | 75,649 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,974 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,716 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,085 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,892 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,313 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,341 |
| Geography of the British Empire | 0 | - | 4.48 | 39,637 |
| Animals in British History | 0 | - | 4.44 | 25,980 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,426 |
| Champions League Winners | 0 | - | 4.92 | 1,004,529 |
| Countries in World War II | 0 | - | 4.54 | 911,242 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,658 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,497 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,165 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,436 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,856 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,690,286 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,579 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,449 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,976 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,835 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,059 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,295 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,525 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,111 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,367 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,731 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,751 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,434 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,787 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,210 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,425 |
| Countries that Border Poland | 0 | - | 4.99 | 172,112 |
| Russia Country Quiz | 0 | - | 4.85 | 114,321 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,749 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,381 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,260 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,121 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,308 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,282 |
| History of Austria | 0 | - | 4.70 | 17,841 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,636 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,522 |
| Countries Two Borders Away From France | 0 | - | 4.37 | 27,582 |
| Famous French People by Picture | 0 | - | 3.70 | 27,907 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,766 |
| Germany Country Quiz | 0 | - | 4.82 | 157,649 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,944 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,464 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,825 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,887 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,951 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,885 |
