| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,060 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,580 |
| Ancient Greek Words | 0 | - | 4.93 | 111,964 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,204 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,657 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,667 |
| Roman Emperors | 0 | - | 4.95 | 120,448 |
| Roman History by Picture | 0 | - | 4.46 | 26,505 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,851 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,037 |
| Byzantine History | 0 | - | 4.91 | 28,924 |
| Byzantine Emperors | 0 | - | 4.92 | 14,386 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,263 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,680 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,208 |
| Name that Greek Letter | 0 | - | 4.93 | 324,238 |
| The Trojan War | 0 | - | 4.83 | 39,812 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,306 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,681 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,224 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,582 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,800 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,666 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,154 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,373 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,178 |
| Regions of Italy | 0 | - | 4.92 | 76,317 |
| History of Italy | 0 | - | 4.55 | 32,064 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,798 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,002 |
| Roman Names for Places | 0 | - | 4.62 | 58,421 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,731 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,622 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,263 |
| Name the English Monarchs | 0 | - | 4.91 | 504,198 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,839 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,824 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,042 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,397 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,329 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,542 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,278 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,287 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,598 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,789 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,437 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,207 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,095 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,161 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,930 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,124 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,234 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,443 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,183 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,150 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,519 |
| Premier League Relegated Teams | 0 | - | 4.81 | 126,995 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,679 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,422 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,252 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,774 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,975 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,486 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,510 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,394 |
| The Only European Country ... | 0 | - | 4.91 | 217,542 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,555 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,457 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,680 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,626 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,457 |
| Slavic Countries | 0 | - | 4.96 | 111,938 |
| History of Russia Quiz | 0 | - | 4.47 | 31,958 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,702 |
| Mythology A-Z | 0 | - | 4.31 | 37,300 |
| Italy A-Z | 0 | - | 4.49 | 58,468 |
| Which City in Italy? | 0 | - | 4.68 | 90,322 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,730 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,310 |
| Counties of England | 0 | - | 4.97 | 799,327 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,974 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,733 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,279 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,852 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,629 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,430 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,995 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,078 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,905 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,776 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,034 |
| Monarchies of Europe | 0 | - | 4.90 | 98,394 |
| European Countries with One Border | 0 | - | 4.97 | 183,170 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,957 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,179 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,154 |
| Countries That Border Russia | 0 | - | 4.98 | 462,954 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,139 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,909 |
| Countries Bordering France | 0 | - | 4.83 | 403,675 |
| History of France | 0 | - | 4.61 | 57,307 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,262 |
| States of Germany | 0 | - | 4.95 | 153,361 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,314 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,401 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,797 |
| Italy Country Quiz | 0 | - | 4.77 | 123,650 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,131 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,467 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,500 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,442 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,195 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,412 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,797 |
| Geography of the British Empire | 0 | - | 4.48 | 39,745 |
| Champions League Winners | 0 | - | 4.92 | 1,010,341 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,052 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,710,108 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,291 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,392 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,300 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,201 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,535 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,665 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,077 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,496 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,768 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,444 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,497 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,131 |
| Countries that Border Poland | 0 | - | 4.99 | 172,653 |
| Russia Country Quiz | 0 | - | 4.83 | 114,743 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,002 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,642 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,507 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,457 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,426 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,694 |
| History of Austria | 0 | - | 4.70 | 17,915 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,883 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,794 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,687 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,222 |
| Departments of France | 0 | - | 4.93 | 54,530 |
| Geography of the French Empire | 0 | - | 4.45 | 27,161 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,977 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,292 |
| Countries that Beat France | 0 | - | 4.49 | 76,046 |
| French History Multiple Choice | 0 | - | 4.55 | 33,136 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,879 |
| Germany Country Quiz | 0 | - | 4.83 | 158,242 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,672 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,468 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,088 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,952 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,720 |
| Roman to Greek God | 0 | - | 4.52 | 123,045 |
| Counties of Ireland | 0 | - | 4.92 | 196,158 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,649 |
| Italian History A-Z | 0 | - | 4.21 | 17,742 |
| History of The Netherlands | 0 | - | 4.46 | 17,491 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,141 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,280 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,418 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,056 |
| British Geography Quiz #1 | 0 | - | 4.54 | 52,093 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,373 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,967 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,854 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,794 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,303 |
| Medieval English History | 0 | - | 4.53 | 43,579 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,219 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,007 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,823 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,035 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,762 |
| England or Wales? | 0 | - | 4.94 | 45,815 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,109 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,125 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,041 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,541 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,277 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,109 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,559 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,935 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,900 |
| Which City in France? | 0 | - | 4.64 | 73,208 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,390 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,646 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,034 |
| Germany A-Z | 0 | - | 4.56 | 62,706 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,704 |
| Which City in Germany? | 0 | - | 4.50 | 136,850 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,225 |
| History of Germany | 0 | - | 4.39 | 52,907 |
