| Two Letter Roman Numerals | 0 | - | 4.97 | 55,991 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,476 |
| Ancient Greek Words | 0 | - | 4.93 | 111,321 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,381 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,566 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,402 |
| Roman Emperors | 0 | - | 4.95 | 119,639 |
| Roman History by Picture | 0 | - | 4.46 | 26,434 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,736 |
| Byzantine History | 0 | - | 4.91 | 28,751 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,480 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,097 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,986 |
| Name that Greek Letter | 0 | - | 4.93 | 323,057 |
| The Trojan War | 0 | - | 4.83 | 39,641 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,514 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,868 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,489 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,862 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,103 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,256 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,690 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,581 |
| Regions of Italy | 0 | - | 4.92 | 75,526 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,687 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,849 |
| Roman Names for Places | 0 | - | 4.62 | 58,169 |
| Italy Country Quiz | 0 | - | 4.82 | 123,165 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,084 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,513 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,535 |
| Name the English Monarchs | 0 | - | 4.91 | 501,364 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,816 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,044 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,395 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,742 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,677 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,706 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,437 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,384 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,240 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,299 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,895 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,447 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,053 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,103 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,600 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,438 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,254 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,490 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,596 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,960 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,793 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,400 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,949 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,121 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,961 |
| The Only European Country ... | 0 | - | 4.91 | 215,930 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,945 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,509 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,744 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,979 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,705 |
| Slavic Countries | 0 | - | 4.96 | 111,476 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,527 |
| Mythology A-Z | 0 | - | 4.31 | 37,161 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,747 |
| Italy A-Z | 0 | - | 4.49 | 58,147 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,608 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,158 |
| Counties of England | 0 | - | 4.97 | 794,600 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,786 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,596 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,239 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,593 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,093 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,652 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,218 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,883 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,477 |
| Monarchies of Europe | 0 | - | 4.90 | 97,929 |
| European Countries with One Border | 0 | - | 4.97 | 182,484 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,288 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,904 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,301 |
| Countries That Border Russia | 0 | - | 4.98 | 461,044 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,712 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,108 |
| Countries Bordering France | 0 | - | 4.83 | 401,817 |
| History of France | 0 | - | 4.59 | 56,811 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,528 |
| States of Germany | 0 | - | 4.96 | 151,836 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,865 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,215 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,554 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,086 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,813 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,602 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,980 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,529 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,303 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,284 |
| Geography of the British Empire | 0 | - | 4.48 | 39,628 |
| Champions League Winners | 0 | - | 4.92 | 1,003,546 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,592 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,323 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,482 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,852 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,763 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,036 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,269 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,336 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,532 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,245 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,625 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,743 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,848 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,306 |
| Countries that Border Poland | 0 | - | 4.99 | 172,032 |
| Russia Country Quiz | 0 | - | 4.85 | 114,256 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,708 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,172 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,224 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,081 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,282 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,237 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,708 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,176 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,413 |
| Departments of France | 0 | - | 4.93 | 53,740 |
| Geography of the French Empire | 0 | - | 4.45 | 27,019 |
| The French Revolution | 0 | - | 4.46 | 23,899 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,781 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,084 |
| French History Multiple Choice | 0 | - | 4.55 | 32,997 |
| Germany Country Quiz | 0 | - | 4.82 | 157,549 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,850 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,460 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,931 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,601 |
| Roman to Greek God | 0 | - | 4.52 | 122,644 |
| Counties of Ireland | 0 | - | 4.92 | 194,587 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,797 |
| Italian History A-Z | 0 | - | 4.21 | 17,666 |
| History of The Netherlands | 0 | - | 4.46 | 17,403 |
| The Vikings! | 0 | - | 4.46 | 28,318 |
| The Portuguese Empire | 0 | - | 4.58 | 12,045 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,646 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,348 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,117 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,579 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,193 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,103 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,735 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,567 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,955 |
| Medieval English History | 0 | - | 4.53 | 43,454 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,097 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,923 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,218 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,673 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,657 |
| England or Wales? | 0 | - | 4.94 | 45,592 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,700 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,183 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,447 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,256 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,793 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,733 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,610 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,043 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,899 |
| Germany A-Z | 0 | - | 4.56 | 62,537 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,494 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,303 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,085 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,897 |
| History of Germany | 0 | - | 4.39 | 52,775 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,763 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,329 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,657 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,511 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,962 |
| Which City in Italy? | 0 | - | 4.67 | 89,963 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,360 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,646 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,131 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,720 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,774 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,353 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,133 |
| Roald Dahl Books | 0 | - | 4.44 | 34,034 |
| Shakespearean Phrases | 0 | - | 4.57 | 36,698 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,334 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 492,865 |
