| Two Letter Roman Numerals | 0 | - | 4.97 | 56,574 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,228 |
| Byzantine History | 0 | - | 4.91 | 29,037 |
| Byzantine Emperors | 0 | - | 4.93 | 14,649 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,236 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,662 |
| Roman Emperors | 0 | - | 4.95 | 121,370 |
| Mythology A-Z | 0 | - | 4.31 | 37,432 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,107 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,907 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,648 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,998 |
| Figures from Greek Mythology | 0 | - | 4.91 | 189,122 |
| Italy A-Z | 0 | - | 4.49 | 58,817 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,502 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,821 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,761 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,736 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,514 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,891 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,949 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,972 |
| Ancient Greek Words | 0 | - | 4.93 | 112,614 |
| Regions of Italy | 0 | - | 4.92 | 77,219 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,357 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,254 |
| Roman Names for Places | 0 | - | 4.62 | 58,769 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,135 |
| Germany A-Z | 0 | - | 4.56 | 62,890 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,371 |
| History of Italy | 0 | - | 4.55 | 32,175 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,768 |
| Name the English Monarchs | 0 | - | 4.91 | 507,171 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,938 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,216 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,662 |
| Name that Greek Letter | 0 | - | 4.93 | 325,185 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,339 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,581 |
| Rome A-Z | 0 | - | 4.40 | 24,565 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,939 |
| Scotland A-Z | 0 | - | 4.73 | 41,487 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,268 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,800 |
| The Trojan War | 0 | - | 4.83 | 40,035 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,118 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,255 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,193 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,272 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,884 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,655 |
| Australia A-Z | 0 | - | 4.54 | 50,159 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,127 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,484 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,415 |
| The Only European Country ... | 0 | - | 4.91 | 219,449 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,770 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,244 |
| Roman to Greek God | 0 | - | 4.52 | 123,419 |
| Roman History by Picture | 0 | - | 4.46 | 26,606 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,601 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,948 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,337 |
| China A-Z | 0 | - | 4.55 | 67,720 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,602 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,821 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,728 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,490 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,154 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,881 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,078 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,353 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,591 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,666 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,330 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,884 |
| Slavic Countries | 0 | - | 4.96 | 112,477 |
| History of Russia Quiz | 0 | - | 4.47 | 32,017 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,198 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,249 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,209 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,841 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,461 |
| Counties of England | 0 | - | 4.97 | 803,944 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,133 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,841 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,818 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,882 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,399 |
| Champions League Winners | 0 | - | 4.92 | 1,017,485 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,667 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,217 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,979 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,074 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,020 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,909 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,952 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,679 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,774 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,914 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,586 |
| Monarchies of Europe | 0 | - | 4.90 | 98,997 |
| European Countries with One Border | 0 | - | 4.97 | 183,971 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,686 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,197 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,233 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,039 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,171 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,196 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,063 |
| Russia Country Quiz | 0 | - | 4.83 | 115,407 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,845 |
| Countries That Border Russia | 0 | - | 4.98 | 464,786 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,814 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,554 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,620 |
| History of Austria | 0 | - | 4.70 | 17,990 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,978 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,776 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,951 |
| Departments of France | 0 | - | 4.93 | 55,343 |
| Geography of the French Empire | 0 | - | 4.45 | 27,228 |
| The French Revolution | 0 | - | 4.47 | 24,163 |
| Countries Bordering France | 0 | - | 4.83 | 405,236 |
| Paris A-Z | 0 | - | 4.16 | 17,511 |
| History of France | 0 | - | 4.61 | 57,699 |
| Germany Country Quiz | 0 | - | 4.82 | 158,996 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,940 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,187 |
| States of Germany | 0 | - | 4.95 | 154,850 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,573 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,779 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,134 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,270 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,066 |
| Italy Country Quiz | 0 | - | 4.77 | 124,165 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,180 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,175 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,885 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,589 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,511 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,998 |
| Spain A-Z | 0 | - | 4.23 | 28,563 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,870 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,593 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,983 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,484 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,344 |
| Geography of the British Empire | 0 | - | 4.48 | 39,864 |
| Medieval English History | 0 | - | 4.53 | 43,679 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,916 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,855 |
| England or Wales? | 0 | - | 4.94 | 46,008 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,383 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,096 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,632 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,662 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,180 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,448 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,076 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,729,663 |
| California A-Z | 0 | - | 4.49 | 28,853 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,929 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,391 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,802 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,371 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,021 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,389 |
| Countries that Border Poland | 0 | - | 4.99 | 173,304 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,331 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,716 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,151 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,071 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,181 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,166 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,013 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,202 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,544 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,772 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,448 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,996 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,625 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,402 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,883 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,047 |
| Counties of Ireland | 0 | - | 4.92 | 197,596 |
| Italian History A-Z | 0 | - | 4.16 | 17,950 |
| Famous Italians by Picture | 0 | - | 4.06 | 22,023 |
| History of The Netherlands | 0 | - | 4.46 | 17,570 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,250 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,968 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,327 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,311 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,416 |
| Arthurian Legend | 0 | - | 4.33 | 25,185 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,167 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,573 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,811 |
