| Olympian Gods Quiz | 0 | - | 4.96 | 495,246 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,573 |
| Famous Ancient Romans | 0 | - | 4.69 | 84,995 |
| Ancient Greek Words | 0 | - | 4.92 | 110,597 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,321 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,408 |
| Roman History by Picture | 0 | - | 4.46 | 26,332 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,751 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,133 |
| Byzantine History | 0 | - | 4.91 | 28,594 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,444 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,398 |
| Name that Greek Letter | 0 | - | 4.94 | 321,482 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,625 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,378 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,996 |
| Roman Emperors | 0 | - | 4.95 | 118,349 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,825 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,329 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,283 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,019 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,943 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,817 |
| Regions of Italy | 0 | - | 4.92 | 74,620 |
| History of Italy | 0 | - | 4.55 | 31,803 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,236 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,493 |
| Roman to Greek God | 0 | - | 4.52 | 122,144 |
| Italy Country Quiz | 0 | - | 4.82 | 122,111 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,277 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,348 |
| Name the English Monarchs | 0 | - | 4.92 | 497,543 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,542 |
| Mythology A-Z | 0 | - | 4.31 | 36,968 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,659 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.53 | 56,125 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,394 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,200 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,249 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,943 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,108 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,919 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,823 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,137 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,135 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,516 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,648 |
| Roman Names for Places | 0 | - | 4.62 | 57,835 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,628 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,903 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,232 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,913 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,801 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,854 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,842 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,399 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,622 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,223 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,129 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,421 |
| The Only European Country ... | 0 | - | 4.91 | 213,583 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,634 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,628 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,380 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,185 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,092 |
| Slavic Countries | 0 | - | 4.96 | 110,794 |
| History of Russia Quiz | 0 | - | 4.49 | 31,777 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,275 |
| Italy A-Z | 0 | - | 4.49 | 57,646 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,469 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,965 |
| Counties of England | 0 | - | 4.97 | 788,571 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,362 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,383 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,191 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,540 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,352 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,280 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 94,980 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,260 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,718 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,713 |
| Monarchies of Europe | 0 | - | 4.90 | 97,239 |
| European Countries with One Border | 0 | - | 4.97 | 181,509 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,047 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,147 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,722 |
| Countries That Border Russia | 0 | - | 4.98 | 458,655 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,127 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,030 |
| Countries Bordering France | 0 | - | 4.85 | 397,653 |
| History of France | 0 | - | 4.59 | 55,922 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,594 |
| States of Germany | 0 | - | 4.96 | 149,869 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,940 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,910 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,806 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,034 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,109 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,757 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,182 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,071 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,862 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,157 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,721 |
| Geography of the British Empire | 0 | - | 4.48 | 39,464 |
| Champions League Winners | 0 | - | 4.92 | 995,403 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,750 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,650,209 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,160 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,186 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,055 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,761 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,791 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,762 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,301 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,027 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,982 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,896 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,420 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,087 |
| Countries that Border Poland | 0 | - | 4.99 | 171,256 |
| Russia Country Quiz | 0 | - | 4.85 | 113,584 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,344 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,248 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,803 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,635 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,004 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,671 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,496 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,699 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,090 |
| Departments of France | 0 | - | 4.93 | 52,705 |
| Geography of the French Empire | 0 | - | 4.48 | 26,917 |
| The French Revolution | 0 | - | 4.46 | 23,757 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,489 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,768 |
| French History Multiple Choice | 0 | - | 4.55 | 32,860 |
| Germany Country Quiz | 0 | - | 4.82 | 156,439 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,074 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,374 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,102 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,746 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,758 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,409 |
| Counties of Ireland | 0 | - | 4.92 | 192,866 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,002 |
| Italian History A-Z | 0 | - | 4.21 | 17,362 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,939 |
| History of The Netherlands | 0 | - | 4.46 | 17,301 |
| The Vikings! | 0 | - | 4.45 | 28,236 |
| The Portuguese Empire | 0 | - | 4.54 | 11,984 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,890 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,548 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,004 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,172 |
| Arthurian Legend | 0 | - | 4.33 | 25,047 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,152 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,477 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,262 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,484 |
| Medieval English History | 0 | - | 4.53 | 43,295 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,941 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,817 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,636 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,718 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,396 |
| England or Wales? | 0 | - | 4.94 | 45,287 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,339 |
| Egyptian Gods and Goddesses | 0 | - | 4.43 | 27,355 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,082 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,811 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 95,854 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,588 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,521 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,362 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,556 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,653 |
| Germany A-Z | 0 | - | 4.56 | 62,287 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,710 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,288 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,414 |
| History of Germany | 0 | - | 4.39 | 52,595 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,661 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,285 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,751 |
| Which City in Italy? | 0 | - | 4.55 | 78,120 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,777 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,298 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,613 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,484 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,415 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,782 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,442 |
| Roald Dahl Books | 0 | - | 4.44 | 33,925 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,526 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,189 |
