| Figures from Greek Mythology | 0 | - | 4.92 | 194,177 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,612 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,682 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,082 |
| Roman to Greek God | 0 | - | 4.52 | 123,548 |
| The Trojan War | 0 | - | 4.83 | 40,116 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,337 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,405 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,074 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,305 |
| Name that Greek Letter | 0 | - | 4.93 | 325,391 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,527 |
| Ancient Greek Words | 0 | - | 4.93 | 112,728 |
| Mythology A-Z | 0 | - | 4.31 | 37,466 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,170 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,631 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,223 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,080 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,071 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,778 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,607 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,527 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,653 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,763 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,142 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,067 |
| Name the English Monarchs | 0 | - | 4.91 | 507,612 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,392 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,963 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,554 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,296 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,079 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,326 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,724 |
| Roman Emperors | 0 | - | 4.95 | 121,508 |
| Byzantine History | 0 | - | 4.91 | 29,063 |
| Byzantine Emperors | 0 | - | 4.93 | 14,671 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,462 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,752 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,864 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,924 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,680 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,548 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,839 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,662 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,906 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,337 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,179 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,352 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,341 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,692 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,589 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,840 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,587 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,407 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,948 |
| The Only European Country ... | 0 | - | 4.91 | 219,739 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,319 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,736 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,914 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,428 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,952 |
| Slavic Countries | 0 | - | 4.96 | 112,553 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,866 |
| History of Italy | 0 | - | 4.55 | 32,196 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,596 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,863 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,480 |
| Arthurian Legend | 0 | - | 4.33 | 25,197 |
| Counties of England | 0 | - | 4.97 | 804,677 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,156 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,843 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,997 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,250 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,226 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,123 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,023 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,029 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,789 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,951 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,707 |
| Monarchies of Europe | 0 | - | 4.90 | 99,077 |
| European Countries with One Border | 0 | - | 4.97 | 184,096 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,814 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,481 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,446 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,253 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,384 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,586 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,190 |
| Russia Country Quiz | 0 | - | 4.83 | 115,499 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,019 |
| Countries That Border Russia | 0 | - | 4.98 | 465,057 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,860 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,620 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,667 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,011 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,863 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,041 |
| Departments of France | 0 | - | 4.93 | 55,455 |
| Countries Bordering France | 0 | - | 4.83 | 405,479 |
| History of France | 0 | - | 4.61 | 57,762 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,035 |
| Germany Country Quiz | 0 | - | 4.82 | 159,136 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,042 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,299 |
| States of Germany | 0 | - | 4.95 | 155,026 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,853 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,356 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,598 |
| Regions of Italy | 0 | - | 4.92 | 77,309 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,480 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,282 |
| Countries Italy Declared War On | 0 | - | 4.74 | 49,521 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,793 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,575 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,957 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,650 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,664 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,083 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,164 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,939 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,686 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,119 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,653 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,644 |
| Lord of the Rings Characters by Screen Time | 0 | - | 4.55 | 77,773 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,498 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,408 |
| Geography of the British Empire | 0 | - | 4.48 | 39,889 |
| Medieval English History | 0 | - | 4.53 | 43,700 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 52,051 |
| England or Wales? | 0 | - | 4.94 | 46,091 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,574 |
| Champions League Winners | 0 | - | 4.92 | 1,018,551 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,204 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,941 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,753 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,253 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,131 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,595 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,074 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,223 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,417 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,848 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,088 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,328 |
| Countries that Border Poland | 0 | - | 4.99 | 173,397 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,373 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,793 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,430 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,129 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,101 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,082 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,247 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,319 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,078 |
| Geography of the French Empire | 0 | - | 4.45 | 27,240 |
| The French Revolution | 0 | - | 4.47 | 24,173 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,252 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,595 |
| Countries that Beat France | 0 | - | 4.48 | 76,526 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,844 |
| French History Multiple Choice | 0 | - | 4.55 | 33,282 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,269 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,692 |
| History of Germany | 0 | - | 4.39 | 53,010 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,429 |
| Counties of Ireland | 0 | - | 4.92 | 197,769 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,397 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,774 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,415 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,281 |
| Roman Names for Places | 0 | - | 4.62 | 58,809 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,204 |
| History of The Netherlands | 0 | - | 4.46 | 17,580 |
| The Vikings! | 0 | - | 4.46 | 28,430 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,341 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,035 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,450 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,228 |
| British Geography Quiz #1 | 0 | - | 4.55 | 54,342 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,730 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,535 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,105 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,836 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,009 |
| British History A-Z #1 | 0 | - | 4.45 | 47,361 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,259 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,044 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,363 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,115 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,182 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,454 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,450 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,878 |
