| Two Letter Roman Numerals | 0 | - | 4.97 | 56,212 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,400 |
| Byzantine History | 0 | - | 4.91 | 28,894 |
| Byzantine Emperors | 0 | - | 4.92 | 14,279 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,567 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,597 |
| Roman Emperors | 0 | - | 4.95 | 120,228 |
| Mythology A-Z | 0 | - | 4.31 | 37,252 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,089 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,340 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,341 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,062 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,260 |
| Italy A-Z | 0 | - | 4.49 | 58,368 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,123 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,521 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,373 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,576 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 82,763 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,878 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,183 |
| Ancient Greek Words | 0 | - | 4.93 | 111,767 |
| Regions of Italy | 0 | - | 4.92 | 76,082 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,769 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,973 |
| Roman Names for Places | 0 | - | 4.62 | 58,354 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,986 |
| Germany A-Z | 0 | - | 4.56 | 62,652 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,526 |
| History of Italy | 0 | - | 4.55 | 32,024 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,566 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,628 |
| Name the English Monarchs | 0 | - | 4.91 | 503,366 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,078 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,214 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,194 |
| Name that Greek Letter | 0 | - | 4.93 | 324,005 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,920 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,192 |
| Rome A-Z | 0 | - | 4.39 | 24,492 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,578 |
| Scotland A-Z | 0 | - | 4.73 | 41,315 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,586 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,532 |
| The Trojan War | 0 | - | 4.83 | 39,768 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,026 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,578 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,106 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,194 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 493,577 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,618 |
| Australia A-Z | 0 | - | 4.54 | 50,003 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,298 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,764 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,458 |
| The Only European Country ... | 0 | - | 4.91 | 217,031 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,368 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,655 |
| Roman to Greek God | 0 | - | 4.52 | 122,936 |
| Roman History by Picture | 0 | - | 4.46 | 26,486 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,572 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,894 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,266 |
| China A-Z | 0 | - | 4.55 | 67,307 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,356 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,329,803 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,788 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,315 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,034 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,262 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,891 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,383 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,569 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,717 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,428 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,306 |
| Slavic Countries | 0 | - | 4.96 | 111,777 |
| History of Russia Quiz | 0 | - | 4.47 | 31,940 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,987 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,827 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 75,370 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,698 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,271 |
| Counties of England | 0 | - | 4.97 | 797,923 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,912 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,687 |
| Lord of the Rings Decoder | 0 | - | 4.59 | 42,660 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,850 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,123 |
| Champions League Winners | 0 | - | 4.91 | 1,008,333 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,305 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,977 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,695 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,708 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,974 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,584 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,227 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,133 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,967 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,701 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,521 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,608 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,886 |
| Monarchies of Europe | 0 | - | 4.90 | 98,242 |
| European Countries with One Border | 0 | - | 4.97 | 182,956 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,735 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,597 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,124 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,747 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,352 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,540 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,880 |
| Russia Country Quiz | 0 | - | 4.83 | 114,593 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,654 |
| Countries That Border Russia | 0 | - | 4.98 | 462,097 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,414 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,983 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,382 |
| History of Austria | 0 | - | 4.70 | 17,881 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,732 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,631 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,936 |
| Departments of France | 0 | - | 4.93 | 54,275 |
| Geography of the French Empire | 0 | - | 4.45 | 27,133 |
| The French Revolution | 0 | - | 4.47 | 24,031 |
| Countries Bordering France | 0 | - | 4.83 | 402,877 |
| Paris A-Z | 0 | - | 4.16 | 17,453 |
| History of France | 0 | - | 4.59 | 57,149 |
| Germany Country Quiz | 0 | - | 4.83 | 158,022 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,979 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,481 |
| States of Germany | 0 | - | 4.95 | 152,887 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,165 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,693 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,038 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,936 |
| Italy Country Quiz | 0 | - | 4.77 | 123,509 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,181 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,118 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,295 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,020 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,172 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,813 |
| Spain A-Z | 0 | - | 4.23 | 28,465 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,296 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,068 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,803 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,378 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,584 |
| Geography of the British Empire | 0 | - | 4.48 | 39,720 |
| Medieval English History | 0 | - | 4.53 | 43,554 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,764 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,724 |
| England or Wales? | 0 | - | 4.94 | 45,749 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,705 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,344 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,031 |
| Hindu Countries | 0 | - | 4.86 | 50,230 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,354 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,650 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,703,891 |
| California A-Z | 0 | - | 4.49 | 28,799 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,937 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,148 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,450 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,875 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,547 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,891 |
| Countries that Border Poland | 0 | - | 4.99 | 172,397 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,913 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,952 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,219 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,308 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,507 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,812 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,380 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,913 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,230 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,279 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,606 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,059 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,107 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,769 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,689 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 56,685 |
| Counties of Ireland | 0 | - | 4.92 | 195,649 |
| Italian History A-Z | 0 | - | 4.21 | 17,729 |
| Famous Italians by Picture | 0 | - | 4.06 | 21,953 |
| History of The Netherlands | 0 | - | 4.46 | 17,450 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,657 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,427 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,200 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,190 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,010 |
| Arthurian Legend | 0 | - | 4.33 | 25,127 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,642 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,049 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 378,971 |
