| Two Letter Roman Numerals | 0 | - | 4.97 | 55,727 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,410 |
| Ancient Greek Words | 0 | - | 4.92 | 110,910 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,770 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,066 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,581 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,683 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,641 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,819 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,228 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,664 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,693 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,324 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,211 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,483 |
| Countries Bordering France | 0 | - | 4.83 | 400,510 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,424 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,565 |
| Departments of France | 0 | - | 4.93 | 53,052 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,017 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,095 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,837 |
| Name the English Monarchs | 0 | - | 4.92 | 499,038 |
| Europe Map Quiz | 0 | - | 5.00 | 4,738,659 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,204 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,572 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,624 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,893 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,723 |
| History of France | 0 | - | 4.59 | 56,369 |
| The Trojan War | 0 | - | 4.83 | 39,498 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,296 |
| Name that Greek Letter | 0 | - | 4.94 | 322,097 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,863 |
| Mythology A-Z | 0 | - | 4.31 | 37,058 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,163 |
| Roman Emperors | 0 | - | 4.95 | 118,794 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,771 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,878 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,222 |
| Geography of the French Empire | 0 | - | 4.45 | 26,964 |
| The French Revolution | 0 | - | 4.46 | 23,830 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,922 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,712 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,494 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,485 |
| Roman History by Picture | 0 | - | 4.46 | 26,369 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,564 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,693 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,155 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,577 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,589 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,070 |
| The Vietnam War | 0 | - | 4.43 | 35,348 |
| WWI... or WWII? | 0 | - | 4.85 | 140,991 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,488 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,668 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,784 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,720 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,958 |
| The Only European Country ... | 0 | - | 4.91 | 214,533 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,951 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,009 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,609 |
| History of Russia Quiz | 0 | - | 4.49 | 31,817 |
| Germany A-Z | 0 | - | 4.56 | 62,394 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,363 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,692 |
| History of Italy | 0 | - | 4.55 | 31,862 |
| Italy A-Z | 0 | - | 4.49 | 57,871 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,424 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,032 |
| Counties of England | 0 | - | 4.97 | 790,855 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,640 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,239 |
| Middle Earth Geography | 0 | - | 4.56 | 39,580 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,930 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,589 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,205 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,280 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,942 |
| Flags of WW1 | 0 | - | 4.60 | 38,050 |
| The American Revolution | 0 | - | 4.52 | 54,107 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,516 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,928 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,516 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,194 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,882 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,642 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,631 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,182 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,582 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,798 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,016 |
| Monarchies of Europe | 0 | - | 4.90 | 97,511 |
| European Countries with One Border | 0 | - | 4.97 | 181,871 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,768 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,510 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,497 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,369 |
| Slavic Countries | 0 | - | 4.96 | 111,045 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,676 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,352 |
| France Country Quiz | 0 | - | 4.70 | 134,041 |
| French Inventions | 0 | - | 4.08 | 13,870 |
| Regions of France | 0 | - | 4.78 | 119,624 |
| France Immigration by Country | 0 | - | 4.72 | 76,069 |
| History of Paris | 0 | - | 4.24 | 13,623 |
| Kings of France Quiz | 0 | - | 4.20 | 32,594 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,970 |
| States of Germany | 0 | - | 4.96 | 150,604 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,196 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,424 |
| Regions of Italy | 0 | - | 4.92 | 74,961 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,984 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,760 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,522 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,186 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,236 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,974 |
| Geography of the British Empire | 0 | - | 4.48 | 39,535 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,636 |
| Champions League Winners | 0 | - | 4.92 | 998,530 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,115 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,998 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,294 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,531 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,743 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,664,442 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,516 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,174 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,418 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,299 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,852 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,976 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,397 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,611 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,983 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,248 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,088 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,682 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,596 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,680 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,533 |
| Countries that Border Poland | 0 | - | 4.99 | 171,585 |
| Russia Country Quiz | 0 | - | 4.85 | 113,830 |
| Countries That Border Russia | 0 | - | 4.98 | 459,755 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,473 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,029 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,977 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,820 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,121 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,907 |
| History of Austria | 0 | - | 4.70 | 17,779 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,923 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,440 |
| Countries that Beat France | 0 | - | 4.49 | 75,303 |
| France True or False? | 0 | - | 4.43 | 39,824 |
| Ligue 1 Champions | 0 | - | 4.19 | 48,197 |
| Germany Country Quiz | 0 | - | 4.82 | 156,854 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,378 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,408 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,547 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,882 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,824 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,804 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,071 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,494 |
| Counties of Ireland | 0 | - | 4.92 | 193,591 |
| Italy Country Quiz | 0 | - | 4.82 | 122,453 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,612 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,300 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,560 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,635 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,407 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,585 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,737 |
| Roman Names for Places | 0 | - | 4.62 | 57,967 |
| Byzantine History | 0 | - | 4.91 | 28,665 |
| The Vikings! | 0 | - | 4.46 | 28,267 |
| The Portuguese Empire | 0 | - | 4.54 | 12,008 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,250 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,846 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,061 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,944 |
| Arthurian Legend | 0 | - | 4.33 | 25,062 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,577 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,077 |
| Lord of the Rings - Races | 0 | - | 4.24 | 58,472 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.61 | 20,544 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,650 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,382 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,649 |
| Medieval English History | 0 | - | 4.53 | 43,351 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,002 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,866 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,100 |
| Doctor Who Actors | 0 | - | 4.61 | 17,867 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,923 |
