| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,029 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,547 |
| Byzantine History | 0 | - | 4.91 | 29,033 |
| Byzantine Emperors | 0 | - | 4.93 | 14,625 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,013 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,999 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,633 |
| Roman Emperors | 0 | - | 4.95 | 121,310 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,052 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,800 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,732 |
| Roman to Greek God | 0 | - | 4.52 | 123,384 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,483 |
| Ancient Greek Words | 0 | - | 4.93 | 112,563 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,452 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,707 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,886 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,926 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,643 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,076 |
| Regions of Italy | 0 | - | 4.92 | 77,158 |
| History of Italy | 0 | - | 4.55 | 32,161 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,335 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,233 |
| Roman Names for Places | 0 | - | 4.62 | 58,740 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,995 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,297 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,754 |
| Roman History by Picture | 0 | - | 4.46 | 26,601 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,922 |
| Name the English Monarchs | 0 | - | 4.91 | 506,913 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,271 |
| The Trojan War | 0 | - | 4.83 | 40,018 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,347 |
| Name that Greek Letter | 0 | - | 4.93 | 325,105 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,055 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,296 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,228 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,488 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,270 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,721 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,444 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,930 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,679 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,104 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,772 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,681 |
| Countries Italy Declared War On | 0 | - | 4.74 | 46,592 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,389 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,187 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,800 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,983 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,513 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,377 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,391 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,300 |
| The Only European Country ... | 0 | - | 4.91 | 219,281 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,659 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,524 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,579 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,464 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,833 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,441 |
| Counties of England | 0 | - | 4.97 | 803,483 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,115 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 38,240 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,065 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,643 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,117 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,043 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,654 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,162 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,894 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,007 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,619 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,844 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,697 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,921 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,108 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,534 |
| Monarchies of Europe | 0 | - | 4.90 | 98,940 |
| European Countries with One Border | 0 | - | 4.97 | 183,896 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,612 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,977 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,263 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,829 |
| Slavic Countries | 0 | - | 4.96 | 112,432 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,696 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,514 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,725 |
| History of France | 0 | - | 4.61 | 57,664 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,884 |
| States of Germany | 0 | - | 4.95 | 154,687 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,737 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,919 |
| Countries of the German Empire | 0 | - | 4.51 | 38,274 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,988 |
| Italy Country Quiz | 0 | - | 4.77 | 124,112 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,168 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,578 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,843 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,435 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,817 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,569 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,591 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,802 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,683 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,478 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,308 |
| Geography of the British Empire | 0 | - | 4.48 | 39,855 |
| Champions League Winners | 0 | - | 4.92 | 1,016,872 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,212 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,864 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,972 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,864 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,378 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,767 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,989 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,054 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,067 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,056 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,161 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,918 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,981 |
| Countries that Border Poland | 0 | - | 4.99 | 173,237 |
| Russia Country Quiz | 0 | - | 4.83 | 115,371 |
| Countries That Border Russia | 0 | - | 4.98 | 464,658 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,311 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,020 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,783 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,041 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,608 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,136 |
| History of Austria | 0 | - | 4.70 | 17,981 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,107 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,966 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,978 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,879 |
| Departments of France | 0 | - | 4.93 | 55,247 |
| Geography of the French Empire | 0 | - | 4.45 | 27,222 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,180 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,517 |
| Countries Bordering France | 0 | - | 4.83 | 405,087 |
| French History Multiple Choice | 0 | - | 4.55 | 33,250 |
| Germany Country Quiz | 0 | - | 4.82 | 158,927 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,138 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,565 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,001 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,831 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,252 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,056 |
| Mythology A-Z | 0 | - | 4.31 | 37,420 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,365 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,868 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,027 |
| Counties of Ireland | 0 | - | 4.92 | 197,441 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,110 |
| Italian History A-Z | 0 | - | 4.16 | 17,942 |
| The Vikings! | 0 | - | 4.46 | 28,413 |
| The Portuguese Empire | 0 | - | 4.58 | 12,114 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,541 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,942 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,322 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,226 |
| Arthurian Legend | 0 | - | 4.33 | 25,180 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,892 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,498 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,306 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,748 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,988 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,981 |
| Medieval English History | 0 | - | 4.53 | 43,670 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,338 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,099 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 51,995 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,097 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,344 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,847 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,377 |
| England or Wales? | 0 | - | 4.94 | 45,990 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,275 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,053 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,601 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,144 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,053 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,594 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,390 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,691 |
| Presidential Middle Names | 0 | - | 4.42 | 60,763 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,714 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,916 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,641 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,350 |
| Russian History A-Z | 0 | - | 4.35 | 32,255 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,662 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,846 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,065 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,044 |
