| Name the English Monarchs | 0 | - | 4.91 | 506,341 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,862 |
| Name that Greek Letter | 0 | - | 4.93 | 324,969 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,447 |
| The Trojan War | 0 | - | 4.83 | 39,986 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,946 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,585 |
| Roman Emperors | 0 | - | 4.95 | 121,188 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,966 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,948 |
| Monarchies of Europe | 0 | - | 4.90 | 98,868 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,532 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,823 |
| German History A-Z | 0 | - | 4.49 | 24,915 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,617 |
| English Royal Consorts | 0 | - | 4.38 | 37,523 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,304 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,551 |
| British History A-Z #1 | 0 | - | 4.45 | 47,254 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,142 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,986 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,361 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,374 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,755 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,826 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,567 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,786 |
| States of Germany | 0 | - | 4.95 | 154,459 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,683 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,647 |
| Monarchies of Asia | 0 | - | 4.97 | 71,502 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,870 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,786 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,834 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,906 |
| Countries Bordering France | 0 | - | 4.83 | 404,883 |
| Germany Country Quiz | 0 | - | 4.82 | 158,829 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,355 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,299 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,840 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,284 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,205 |
| Roman Names for Places | 0 | - | 4.62 | 58,699 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,871 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,077 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,049 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,565 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,547 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,776 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,863 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,072 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,082 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,945 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,146 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,471 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,614 |
| Counties of Ireland | 0 | - | 4.92 | 197,300 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,250 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,374 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,658 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,114 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,382 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,870 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,486 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,361 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,062 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,298 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,670 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,848 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,748 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,695 |
| Kings of France Quiz | 0 | - | 4.21 | 32,930 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,988 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,559 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,575 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,167 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,263 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,146 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,874 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,344 |
| British Monopoly Board | 0 | - | 4.52 | 41,268 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,072 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,296 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,122 |
| Countries in World War I | 0 | - | 4.88 | 229,132 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,219 |
| French History A-Z | 0 | - | 4.27 | 25,129 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,710 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,176 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,223 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,313 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,317 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,087 |
| British History A-Z #2 | 0 | - | 4.26 | 11,831 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,775 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,384 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,775 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,886 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,598 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,090 |
| The Only European Country ... | 0 | - | 4.91 | 218,980 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,494 |
| History of Russia Quiz | 0 | - | 4.47 | 32,005 |
| Germany A-Z | 0 | - | 4.56 | 62,862 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,905 |
| History of Germany | 0 | - | 4.39 | 52,970 |
| Ancient Greek Words | 0 | - | 4.93 | 112,450 |
| History of Italy | 0 | - | 4.55 | 32,143 |
| Italian History A-Z | 0 | - | 4.16 | 17,929 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,768 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,496 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,818 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,423 |
| Spanish History A-Z | 0 | - | 4.37 | 19,509 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,810 |
| Counties of England | 0 | - | 4.97 | 802,838 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,094 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,811 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,622 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,869 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,500 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,047 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,591 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,760 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,486 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,765 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,572 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,757 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,184 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,739 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,722 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,465 |
| European Countries with One Border | 0 | - | 4.97 | 183,789 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,523 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,760 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,169 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,784 |
| Slavic Countries | 0 | - | 4.96 | 112,362 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,468 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,469 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,637 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,255 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,237 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,412 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,831 |
| Regions of Italy | 0 | - | 4.92 | 77,055 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,793 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,308 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,753 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,405 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,520 |
| British Geography A-Z | 0 | - | 4.42 | 19,611 |
| Animals in British History | 0 | - | 4.43 | 26,096 |
| Champions League Winners | 0 | - | 4.92 | 1,016,032 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,284 |
| Countries in World War II | 0 | - | 4.53 | 918,803 |
| Battle to Country | 0 | - | 4.91 | 53,947 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,827 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,096 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,922 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,689 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,893 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,599 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,872 |
| Russia Country Quiz | 0 | - | 4.83 | 115,310 |
| Countries That Border Russia | 0 | - | 4.98 | 464,478 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,736 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,582 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,933 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,795 |
| Departments of France | 0 | - | 4.93 | 55,152 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,146 |
| History of France | 0 | - | 4.61 | 57,604 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,063 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,234 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,042 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,962 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,218 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,040 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,737 |
| Byzantine History | 0 | - | 4.91 | 29,021 |
| Byzantine Emperors | 0 | - | 4.93 | 14,593 |
| The Vikings! | 0 | - | 4.46 | 28,405 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,262 |
| Finland Country Quiz | 0 | - | 4.51 | 60,004 |
| Norway Country Quiz | 0 | - | 4.45 | 77,818 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,387 |
| The Portuguese Empire | 0 | - | 4.58 | 12,106 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,476 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,856 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,705 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,745 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,462 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,247 |
| Geography of the British Empire | 0 | - | 4.48 | 39,845 |
| Medieval English History | 0 | - | 4.53 | 43,655 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,841 |
| England or Wales? | 0 | - | 4.94 | 45,967 |
