| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,059 |
| Name that Greek Letter | 0 | - | 4.93 | 324,221 |
| The Trojan War | 0 | - | 4.83 | 39,808 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,284 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,557 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,663 |
| Roman Emperors | 0 | - | 4.95 | 120,432 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,918 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,720 |
| Name the English Monarchs | 0 | - | 4.91 | 504,118 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,524 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,085 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,951 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,796 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,997 |
| Roman Names for Places | 0 | - | 4.62 | 58,414 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,375 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,212 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,006 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,785 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,582 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,137 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,351 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,168 |
| Ancient Greek Words | 0 | - | 4.93 | 111,935 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,206 |
| Countries Bordering France | 0 | - | 4.83 | 403,640 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,770 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,123 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,851 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,788 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,310 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,592 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,869 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,677 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,973 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,288 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,031 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,432 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,182 |
| Counties of Ireland | 0 | - | 4.92 | 196,119 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,034 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,385 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,400 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,341 |
| British History A-Z #1 | 0 | - | 4.45 | 46,588 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,831 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,771 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,813 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,027 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,162 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,377 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,768 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,216 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,847 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,789 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,669 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,760 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,532 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,088 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,758 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,728 |
| English Royal Consorts | 0 | - | 4.38 | 37,420 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,867 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,116 |
| German History A-Z | 0 | - | 4.49 | 24,667 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,066 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,430 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,003 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,227 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,213 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,004 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 142,084 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,642 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,105 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,046 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,738 |
| The Only European Country ... | 0 | - | 4.91 | 217,484 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,629 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| History of Italy | 0 | - | 4.55 | 32,062 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,725 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,301 |
| Counties of England | 0 | - | 4.97 | 799,160 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,965 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,888 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,342 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,959 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,465 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,467 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,374 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,454 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,330 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,601 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,438 |
| Slavic Countries | 0 | - | 4.96 | 111,915 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,664 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,574 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,144 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,289 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,802 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,535 |
| Champions League Winners | 0 | - | 4.92 | 1,010,161 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,974 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,379 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,284 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,063 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,887 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,757 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,022 |
| Monarchies of Europe | 0 | - | 4.90 | 98,376 |
| European Countries with One Border | 0 | - | 4.97 | 183,155 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,933 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,991 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,428 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,053 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,698 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,361 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,083 |
| Russia Country Quiz | 0 | - | 4.83 | 114,724 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,082 |
| Countries That Border Russia | 0 | - | 4.98 | 462,904 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,498 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,129 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,423 |
| History of Austria | 0 | - | 4.70 | 17,911 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,792 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,891 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,206 |
| Departments of France | 0 | - | 4.93 | 54,509 |
| Geography of the French Empire | 0 | - | 4.45 | 27,157 |
| The French Revolution | 0 | - | 4.47 | 24,070 |
| History of France | 0 | - | 4.59 | 57,295 |
| French History A-Z | 0 | - | 4.27 | 24,776 |
| Germany Country Quiz | 0 | - | 4.83 | 158,206 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,245 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,667 |
| States of Germany | 0 | - | 4.95 | 153,298 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,306 |
| Greece Country Quiz | 0 | - | 4.74 | 66,385 |
| Regions of Italy | 0 | - | 4.92 | 76,302 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,697 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,640 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,621 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,454 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,134 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,464 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,264 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,431 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,176 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,033 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,408 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,688 |
| Geography of the British Empire | 0 | - | 4.48 | 39,743 |
| Animals in British History | 0 | - | 4.43 | 26,044 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,485 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,759 |
| England or Wales? | 0 | - | 4.94 | 45,812 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,071 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,119 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,561 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,240 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,195 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,530 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,657 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,406 |
| Countries that Border Poland | 0 | - | 4.99 | 172,642 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,999 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,594 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,449 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,683 |
| Countries that Beat France | 0 | - | 4.49 | 76,039 |
| France True or False? | 0 | - | 4.44 | 39,988 |
| French History Multiple Choice | 0 | - | 4.55 | 33,133 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,875 |
| Roman to Greek God | 0 | - | 4.52 | 123,040 |
| Italian History A-Z | 0 | - | 4.21 | 17,742 |
| Roman History by Picture | 0 | - | 4.46 | 26,505 |
| Byzantine History | 0 | - | 4.91 | 28,920 |
| Byzantine Emperors | 0 | - | 4.92 | 14,380 |
| History of The Netherlands | 0 | - | 4.46 | 17,489 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,407 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,037 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,423 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,131 |
| Finland Country Quiz | 0 | - | 4.50 | 59,800 |
| Norway Country Quiz | 0 | - | 4.44 | 77,516 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,254 |
| Spanish History A-Z | 0 | - | 4.37 | 19,324 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,535 |
| Arthurian Legend | 0 | - | 4.33 | 25,132 |
| British Monopoly Board | 0 | - | 4.52 | 41,197 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,406 |
| British Geography Quiz #1 | 0 | - | 4.51 | 51,353 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,966 |
| Medieval English History | 0 | - | 4.53 | 43,578 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,213 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,275 |
