| Two Letter Roman Numerals | 0 | - | 4.97 | 56,565 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,156 |
| Ancient Greek Words | 0 | - | 4.93 | 112,592 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,192 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,466 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,853 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,996 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,474 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,496 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,882 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,486 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,804 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,922 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,958 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,672 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,754 |
| Countries Bordering France | 0 | - | 4.83 | 405,178 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,833 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,654 |
| Departments of France | 0 | - | 4.93 | 55,296 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,643 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,817 |
| Iceland... or Ireland? | 0 | - | 4.74 | 57,253 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,735 |
| Name the English Monarchs | 0 | - | 4.91 | 507,066 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,250 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,198 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,119 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,198 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,537 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,755 |
| History of France | 0 | - | 4.61 | 57,684 |
| The Trojan War | 0 | - | 4.83 | 40,031 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,540 |
| Name that Greek Letter | 0 | - | 4.93 | 325,155 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,092 |
| Mythology A-Z | 0 | - | 4.31 | 37,427 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,650 |
| Roman Emperors | 0 | - | 4.95 | 121,345 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,078 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,200 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,785 |
| Geography of the French Empire | 0 | - | 4.45 | 27,225 |
| The French Revolution | 0 | - | 4.47 | 24,158 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,077 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,742 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,411 |
| Roman History by Picture | 0 | - | 4.46 | 26,605 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 54,015 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 81,043 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,112 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,551 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,923 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,818 |
| Premier League Relegated Teams | 0 | - | 4.81 | 128,012 |
| The Vietnam War | 0 | - | 4.44 | 35,674 |
| WWI... or WWII? | 0 | - | 4.85 | 143,707 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,074 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,127 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,454 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,653 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,374 |
| The Only European Country ... | 0 | - | 4.91 | 219,382 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,727 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,567 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,625 |
| History of Russia Quiz | 0 | - | 4.47 | 32,012 |
| Germany A-Z | 0 | - | 4.56 | 62,885 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,096 |
| History of Italy | 0 | - | 4.55 | 32,167 |
| Italy A-Z | 0 | - | 4.49 | 58,811 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,126 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,839 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,454 |
| Counties of England | 0 | - | 4.97 | 803,744 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,123 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,512 |
| Middle Earth Geography | 0 | - | 4.56 | 39,976 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,838 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,978 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,336 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,261 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,659 |
| Flags of WW1 | 0 | - | 4.60 | 38,743 |
| The American Revolution | 0 | - | 4.52 | 54,377 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,062 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,705 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,425 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,932 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,095 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,659 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,866 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,736 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,001 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,253 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,568 |
| Monarchies of Europe | 0 | - | 4.90 | 98,977 |
| European Countries with One Border | 0 | - | 4.97 | 183,948 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,663 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,019 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,297 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,852 |
| Slavic Countries | 0 | - | 4.96 | 112,464 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,763 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,538 |
| France Country Quiz | 0 | - | 4.70 | 135,750 |
| French Inventions | 0 | - | 4.10 | 13,930 |
| Regions of France | 0 | - | 4.70 | 122,260 |
| France Immigration by Country | 0 | - | 4.70 | 76,979 |
| History of Paris | 0 | - | 4.24 | 13,684 |
| Kings of France Quiz | 0 | - | 4.21 | 32,953 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,924 |
| States of Germany | 0 | - | 4.95 | 154,775 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,760 |
| Figures from Greek Mythology | 0 | - | 4.91 | 189,066 |
| Regions of Italy | 0 | - | 4.92 | 77,197 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,863 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,480 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,844 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,583 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,480 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,328 |
| Geography of the British Empire | 0 | - | 4.48 | 39,862 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,906 |
| Champions League Winners | 0 | - | 4.92 | 1,017,231 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,213 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,750 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,729,040 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,911 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,975 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,006 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,896 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,385 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,787 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,346 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,892 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,011 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,376 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,136 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,190 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,117 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,067 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,032 |
| Countries that Border Poland | 0 | - | 4.99 | 173,277 |
| Russia Country Quiz | 0 | - | 4.83 | 115,391 |
| Countries That Border Russia | 0 | - | 4.98 | 464,731 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,325 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,094 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,802 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,057 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,615 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,160 |
| History of Austria | 0 | - | 4.70 | 17,986 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,973 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,002 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,912 |
| Countries that Beat France | 0 | - | 4.48 | 76,446 |
| France True or False? | 0 | - | 4.44 | 40,093 |
| Ligue 1 Champions | 0 | - | 4.22 | 48,897 |
| Germany Country Quiz | 0 | - | 4.82 | 158,970 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,164 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,568 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,085 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,928 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,264 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,062 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,393 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,877 |
| Counties of Ireland | 0 | - | 4.92 | 197,536 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,346 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,151 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,325 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,543 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,760 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,345 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,246 |
| Roman Names for Places | 0 | - | 4.62 | 58,755 |
| Byzantine History | 0 | - | 4.91 | 29,033 |
| Byzantine Emperors | 0 | - | 4.93 | 14,638 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,560 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,972 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,326 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,278 |
| Arthurian Legend | 0 | - | 4.33 | 25,184 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,957 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,547 |
| Lord of the Rings - Races | 0 | - | 4.25 | 59,038 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.63 | 20,899 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,991 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,995 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,635 |
| Medieval English History | 0 | - | 4.53 | 43,673 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,342 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,100 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,504 |
| Doctor Who Actors | 0 | - | 4.61 | 17,999 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,109 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,363 |
