| Two Letter Roman Numerals | 0 | - | 4.97 | 55,730 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,463 |
| Ancient Greek Words | 0 | - | 4.92 | 110,919 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,774 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,067 |
| Prime Ministers of the UK | 0 | - | 4.96 | 435,608 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,689 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,644 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,824 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,245 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,670 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,704 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,334 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,215 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,492 |
| Countries Bordering France | 0 | - | 4.83 | 400,544 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,426 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,565 |
| Departments of France | 0 | - | 4.93 | 53,063 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,021 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,098 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,843 |
| Name the English Monarchs | 0 | - | 4.92 | 499,068 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,058 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,216 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,573 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,624 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,896 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,727 |
| History of France | 0 | - | 4.59 | 56,384 |
| The Trojan War | 0 | - | 4.83 | 39,501 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,365 |
| Name that Greek Letter | 0 | - | 4.94 | 322,118 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,883 |
| Mythology A-Z | 0 | - | 4.31 | 37,058 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,172 |
| Roman Emperors | 0 | - | 4.95 | 118,814 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 101,779 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,902 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,223 |
| Geography of the French Empire | 0 | - | 4.45 | 26,964 |
| The French Revolution | 0 | - | 4.46 | 23,832 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,936 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,729 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,496 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,490 |
| Roman History by Picture | 0 | - | 4.46 | 26,369 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,571 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,701 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,162 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,595 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,605 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,072 |
| The Vietnam War | 0 | - | 4.43 | 35,348 |
| WWI... or WWII? | 0 | - | 4.85 | 141,009 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,511 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,867 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,804 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,784 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,970 |
| The Only European Country ... | 0 | - | 4.91 | 214,557 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,971 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,022 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,618 |
| History of Russia Quiz | 0 | - | 4.49 | 31,819 |
| Germany A-Z | 0 | - | 4.56 | 62,396 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,367 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,693 |
| History of Italy | 0 | - | 4.55 | 31,864 |
| Italy A-Z | 0 | - | 4.49 | 57,877 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,455 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,037 |
| Counties of England | 0 | - | 4.97 | 790,965 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,648 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.57 | 34,240 |
| Middle Earth Geography | 0 | - | 4.56 | 39,582 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 80,935 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,590 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,205 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,336 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,947 |
| Flags of WW1 | 0 | - | 4.60 | 38,052 |
| The American Revolution | 0 | - | 4.52 | 54,110 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,519 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,938 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,520 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,197 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,909 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,656 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,635 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,196 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,660 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,825 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,027 |
| Monarchies of Europe | 0 | - | 4.90 | 97,519 |
| European Countries with One Border | 0 | - | 4.97 | 181,876 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,780 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,513 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,510 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,373 |
| Slavic Countries | 0 | - | 4.96 | 111,051 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,698 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,359 |
| France Country Quiz | 0 | - | 4.70 | 134,042 |
| French Inventions | 0 | - | 4.08 | 13,870 |
| Regions of France | 0 | - | 4.78 | 119,634 |
| France Immigration by Country | 0 | - | 4.72 | 76,074 |
| History of Paris | 0 | - | 4.24 | 13,625 |
| Kings of France Quiz | 0 | - | 4.20 | 32,596 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,984 |
| States of Germany | 0 | - | 4.96 | 150,653 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,203 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,452 |
| Regions of Italy | 0 | - | 4.92 | 74,969 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,987 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,783 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,529 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,189 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,238 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,975 |
| Geography of the British Empire | 0 | - | 4.48 | 39,537 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,637 |
| Champions League Winners | 0 | - | 4.92 | 998,617 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,122 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,008 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,302 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,542 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,744 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,665,055 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,530 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,180 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,424 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,306 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,858 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,980 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,420 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,626 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,996 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,256 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,108 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,695 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,614 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,719 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,558 |
| Countries that Border Poland | 0 | - | 4.99 | 171,593 |
| Russia Country Quiz | 0 | - | 4.85 | 113,837 |
| Countries That Border Russia | 0 | - | 4.98 | 459,778 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,474 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,047 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,978 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,825 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,124 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,918 |
| History of Austria | 0 | - | 4.70 | 17,779 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,926 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,448 |
| Countries that Beat France | 0 | - | 4.49 | 75,309 |
| France True or False? | 0 | - | 4.43 | 39,826 |
| Ligue 1 Champions | 0 | - | 4.19 | 48,199 |
| Germany Country Quiz | 0 | - | 4.82 | 156,863 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,383 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,409 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,566 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,905 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,826 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,806 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,084 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,495 |
| Counties of Ireland | 0 | - | 4.92 | 193,615 |
| Italy Country Quiz | 0 | - | 4.82 | 122,458 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,621 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,301 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,563 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,647 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,408 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,587 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,738 |
| Roman Names for Places | 0 | - | 4.62 | 57,971 |
| Byzantine History | 0 | - | 4.91 | 28,666 |
| The Vikings! | 0 | - | 4.46 | 28,268 |
| The Portuguese Empire | 0 | - | 4.54 | 12,008 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,251 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,851 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,062 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,956 |
| Arthurian Legend | 0 | - | 4.33 | 25,064 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,586 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,101 |
| Lord of the Rings - Races | 0 | - | 4.24 | 58,477 |
| 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 | 65,385 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,655 |
| Medieval English History | 0 | - | 4.53 | 43,352 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,002 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,869 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,102 |
| Doctor Who Actors | 0 | - | 4.61 | 17,868 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,929 |
