| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,269 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,145 |
| Roman Emperors | 0 | - | 4.95 | 118,725 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,701 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,348 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,992 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,798 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,236 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,238 |
| Byzantine History | 0 | - | 4.91 | 28,660 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,577 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,733 |
| Roman Names for Places | 0 | - | 4.62 | 57,945 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,662,794 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,169 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,620 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,643 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,297 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,182 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,629 |
| Regions of Italy | 0 | - | 4.92 | 74,923 |
| Italy Country Quiz | 0 | - | 4.82 | 122,423 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,586 |
| History of Italy | 0 | - | 4.55 | 31,858 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,401 |
| Name the English Monarchs | 0 | - | 4.92 | 498,867 |
| Europe Map Quiz | 0 | - | 5.00 | 4,737,317 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,576 |
| The Trojan War | 0 | - | 4.83 | 39,484 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,045 |
| Name that Greek Letter | 0 | - | 4.94 | 322,012 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,084 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,813 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,541 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,572 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,120 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,488 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,559 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,224 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,642 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,753 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,215 |
| Ancient Greek Words | 0 | - | 4.92 | 110,876 |
| Roman to Greek God | 0 | - | 4.52 | 122,333 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,634 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,047 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,484 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,986 |
| Roman History by Picture | 0 | - | 4.46 | 26,363 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,056 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 491,762 |
| Lord of the Rings Characters by Screen Time | 0 | - | 4.55 | 76,834 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,208 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,399 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,697 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,885 |
| The Only European Country ... | 0 | - | 4.91 | 214,375 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,891 |
| History of Russia Quiz | 0 | - | 4.49 | 31,811 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,803 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,352 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,685 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,713 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,515 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,018 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,627 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 280,359 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,406 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,524 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,600 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,944 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,487 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,402 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,889 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,466 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,164 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,780 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,600 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,607 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,130 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,276 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,658 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,970 |
| Monarchies of Europe | 0 | - | 4.90 | 97,481 |
| European Countries with One Border | 0 | - | 4.97 | 181,825 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,725 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,472 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,449 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,347 |
| Slavic Countries | 0 | - | 4.96 | 111,013 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,557 |
| Countries That Border Russia | 0 | - | 4.98 | 459,635 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,326 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,428 |
| Countries Bordering France | 0 | - | 4.83 | 400,353 |
| History of France | 0 | - | 4.59 | 56,319 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,939 |
| States of Germany | 0 | - | 4.96 | 150,521 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,165 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,459 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,444 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,236 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,054 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,953 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,616 |
| Real Madrid 2010s Starting XI | 0 | - | 4.88 | 66,407 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,476 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,162 |
| Counties of England | 0 | - | 4.97 | 790,514 |
| Harry Potter A-Z | 0 | - | 4.42 | 218,268 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,226 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,956 |
| Geography of the British Empire | 0 | - | 4.48 | 39,529 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,012 |
| Champions League Winners | 0 | - | 4.92 | 998,090 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,514 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,082 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,223 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,468 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,387 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,264 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,843 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,946 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,951 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,974 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,586 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,504 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,158 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,525 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,489 |
| Countries that Border Poland | 0 | - | 4.99 | 171,545 |
| Russia Country Quiz | 0 | - | 4.85 | 113,801 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,460 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,933 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,958 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,800 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,105 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,884 |
| History of Austria | 0 | - | 4.70 | 17,775 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,562 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,893 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,413 |
| Departments of France | 0 | - | 4.93 | 53,023 |
| Geography of the French Empire | 0 | - | 4.45 | 26,963 |
| The French Revolution | 0 | - | 4.46 | 23,819 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,602 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,879 |
| Countries that Beat France | 0 | - | 4.49 | 75,284 |
| French History Multiple Choice | 0 | - | 4.55 | 32,904 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,680 |
| Germany Country Quiz | 0 | - | 4.82 | 156,822 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,347 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,403 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,786 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,819 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,801 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,038 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,485 |
| Counties of Ireland | 0 | - | 4.92 | 193,463 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,272 |
| Italian History A-Z | 0 | - | 4.21 | 17,583 |
| History of The Netherlands | 0 | - | 4.46 | 17,339 |
| The Vikings! | 0 | - | 4.46 | 28,261 |
| The Portuguese Empire | 0 | - | 4.54 | 12,005 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,218 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,813 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,882 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,552 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,197 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,009 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 377,508 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,719 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,643 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,373 |
| Medieval English History | 0 | - | 4.53 | 43,350 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,991 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,861 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,421 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,891 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,873 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,577 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,976 |
| England or Wales? | 0 | - | 4.94 | 45,403 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,788 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,244 |
| U.S. Vice Presidents | 0 | - | 4.41 | 135,279 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,089 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,680 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,130 |
| Presidential Middle Names | 0 | - | 4.41 | 59,795 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,917 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,840 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,727 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,945 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,781 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,215 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,534 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,807 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,088 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,115 |