| Two Letter Roman Numerals | 0 | - | 4.97 | 56,496 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,685 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,773 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,717 |
| Ancient Greek Words | 0 | - | 4.93 | 112,441 |
| Byzantine History | 0 | - | 4.91 | 29,020 |
| Byzantine Emperors | 0 | - | 4.93 | 14,588 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,739 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,902 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,581 |
| Roman Emperors | 0 | - | 4.95 | 121,182 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,310 |
| Roman History by Picture | 0 | - | 4.46 | 26,583 |
| Name the English Monarchs | 0 | - | 4.91 | 506,301 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,240 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,962 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,810 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,440 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,351 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,347 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,742 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,821 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,553 |
| Mythology A-Z | 0 | - | 4.31 | 37,392 |
| Regions of Italy | 0 | - | 4.92 | 77,043 |
| History of Italy | 0 | - | 4.55 | 32,142 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,644 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,282 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,204 |
| Roman Names for Places | 0 | - | 4.62 | 58,698 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,805 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,204 |
| Italy A-Z | 0 | - | 4.49 | 58,746 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,735 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,729 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,809 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,577 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,062 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,611 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,799 |
| Name that Greek Letter | 0 | - | 4.93 | 324,957 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,248 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,364 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,825 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,744 |
| The Trojan War | 0 | - | 4.83 | 39,983 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,933 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,165 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,258 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,650 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,206 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,281 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,006 |
| Roman to Greek God | 0 | - | 4.52 | 123,335 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,518 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,175 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,989 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,962 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,986 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,290 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,779 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,962 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,944 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,773 |
| Premier League Relegated Teams | 0 | - | 4.81 | 127,834 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,759 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,734 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,513 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,079 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,495 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,036 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,741 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,758 |
| The Only European Country ... | 0 | - | 4.91 | 218,959 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,725 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,688 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,482 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,164 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,778 |
| Slavic Countries | 0 | - | 4.96 | 112,357 |
| History of Russia Quiz | 0 | - | 4.47 | 32,003 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,138 |
| Germany A-Z | 0 | - | 4.56 | 62,858 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 107,434 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,818 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,420 |
| Counties of England | 0 | - | 4.97 | 802,754 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,093 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,483 |
| Middle Earth Geography | 0 | - | 4.56 | 39,948 |
| Lord of the Rings Trivia | 0 | - | 4.53 | 81,779 |
| Members of the Fellowship of the Ring | 0 | - | 4.74 | 45,963 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,332 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,559 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,851 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,516 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,471 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,558 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,460 |
| Monarchies of Europe | 0 | - | 4.90 | 98,859 |
| European Countries with One Border | 0 | - | 4.97 | 183,773 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,510 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,717 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,448 |
| Countries That Border Russia | 0 | - | 4.98 | 464,463 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,464 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,623 |
| Countries Bordering France | 0 | - | 4.83 | 404,862 |
| History of France | 0 | - | 4.61 | 57,597 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,780 |
| States of Germany | 0 | - | 4.95 | 154,437 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,679 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,809 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,039 |
| Italy Country Quiz | 0 | - | 4.77 | 124,026 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,161 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,790 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,300 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,750 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,517 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,460 |
| English Royal Consorts | 0 | - | 4.38 | 37,522 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,242 |
| Geography of the British Empire | 0 | - | 4.48 | 39,845 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,861 |
| Champions League Winners | 0 | - | 4.92 | 1,015,922 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,195 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,725,247 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,763 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,921 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,864 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,778 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,350 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,722 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,182 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,676 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,934 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,296 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,807 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,871 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,882 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,573 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,864 |
| Countries that Border Poland | 0 | - | 4.99 | 173,153 |
| Russia Country Quiz | 0 | - | 4.83 | 115,302 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,250 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,813 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,733 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,999 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,578 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,077 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,080 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,931 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,940 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,779 |
| Departments of France | 0 | - | 4.93 | 55,142 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,146 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,143 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,464 |
| French History Multiple Choice | 0 | - | 4.55 | 33,228 |
| Germany Country Quiz | 0 | - | 4.82 | 158,816 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,057 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,558 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,598 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,232 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,041 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,295 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,840 |
| Counties of Ireland | 0 | - | 4.92 | 197,278 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,032 |
| Italian History A-Z | 0 | - | 4.16 | 17,927 |
| Famous Italians by Picture | 0 | - | 4.06 | 22,013 |
| Rome A-Z | 0 | - | 4.40 | 24,549 |
| History of The Netherlands | 0 | - | 4.46 | 17,550 |
| The Vikings! | 0 | - | 4.46 | 28,403 |
| The Portuguese Empire | 0 | - | 4.58 | 12,105 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,469 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,849 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,311 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,101 |
| Arthurian Legend | 0 | - | 4.33 | 25,174 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,727 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,350 |
| Lord of the Rings - Races | 0 | - | 4.25 | 59,001 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.63 | 20,878 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 62,573 |
| Medieval English History | 0 | - | 4.53 | 43,654 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,316 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,087 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,986 |
| Doctor Who Actors | 0 | - | 4.61 | 17,994 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,056 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,291 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,840 |
| England or Wales? | 0 | - | 4.94 | 45,962 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,094 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,962 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,237 |
