| Name the English Monarchs | 0 | - | 4.91 | 504,007 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,942 |
| Name that Greek Letter | 0 | - | 4.93 | 324,186 |
| British History A-Z #1 | 0 | - | 4.45 | 46,585 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,029 |
| The Trojan War | 0 | - | 4.83 | 39,800 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,260 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,656 |
| Roman Emperors | 0 | - | 4.95 | 120,408 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,519 |
| Countries Bordering France | 0 | - | 4.83 | 403,580 |
| German History A-Z | 0 | - | 4.49 | 24,665 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,426 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,858 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,969 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,287 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,847 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,779 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,367 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,388 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,202 |
| British Geography A-Z | 0 | - | 4.42 | 19,561 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,352 |
| Monarchies of Europe | 0 | - | 4.90 | 98,358 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,765 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,480 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,117 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,333 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,149 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,865 |
| Italian History A-Z | 0 | - | 4.21 | 17,741 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,421 |
| Spanish History A-Z | 0 | - | 4.37 | 19,323 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,129 |
| English Royal Consorts | 0 | - | 4.38 | 37,413 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,368 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,272 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,943 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,646 |
| Departments of France | 0 | - | 4.93 | 54,479 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,708 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,904 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,714 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,793 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,993 |
| Roman Names for Places | 0 | - | 4.62 | 58,404 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,816 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,754 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,320 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,112 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,609 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,381 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,667 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,387 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,178 |
| Counties of Ireland | 0 | - | 4.92 | 196,078 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,026 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,361 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,307 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,377 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,069 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,517 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,289 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,887 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,806 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,012 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,783 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,499 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,188 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,085 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,590 |
| Geography of the French Empire | 0 | - | 4.45 | 27,156 |
| The French Revolution | 0 | - | 4.47 | 24,064 |
| Kings of France Quiz | 0 | - | 4.20 | 32,818 |
| History of France | 0 | - | 4.59 | 57,278 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,746 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,207 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,524 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,656 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,204 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,749 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,517 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,070 |
| British Monopoly Board | 0 | - | 4.52 | 41,194 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,746 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,702 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,800 |
| British Royal Titles | 0 | - | 4.18 | 19,970 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,533 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,396 |
| Countries in World War I | 0 | - | 4.88 | 228,490 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,068 |
| Countries that Beat France | 0 | - | 4.49 | 76,030 |
| France True or False? | 0 | - | 4.44 | 39,985 |
| French History Multiple Choice | 0 | - | 4.55 | 33,128 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,939 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,123 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,990 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,219 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,208 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,002 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,482 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,501 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 142,032 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,063 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,595 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,784 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,836 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,706 |
| The Only European Country ... | 0 | - | 4.91 | 217,421 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,592 |
| History of Russia Quiz | 0 | - | 4.47 | 31,952 |
| Germany A-Z | 0 | - | 4.56 | 62,700 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,632 |
| Ancient Greek Words | 0 | - | 4.93 | 111,919 |
| Mythology A-Z | 0 | - | 4.31 | 37,289 |
| History of Italy | 0 | - | 4.55 | 32,054 |
| Italy A-Z | 0 | - | 4.49 | 58,445 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,059 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,281 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,721 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,299 |
| Counties of England | 0 | - | 4.97 | 798,988 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,959 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,722 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,240 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,583 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,941 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,938 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,446 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,054 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,404 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,867 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,367 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,731 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,395 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,056 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,304 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,094 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,999 |
| European Countries with One Border | 0 | - | 4.97 | 183,132 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,905 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,821 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,568 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,414 |
| Slavic Countries | 0 | - | 4.96 | 111,895 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,034 |
| Russian History A-Z | 0 | - | 4.35 | 31,871 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,104 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,262 |
| French Inventions | 0 | - | 4.10 | 13,909 |
| Regions of France | 0 | - | 4.72 | 121,259 |
| France Immigration by Country | 0 | - | 4.70 | 76,685 |
| History of Paris | 0 | - | 4.24 | 13,660 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,228 |
| States of Germany | 0 | - | 4.95 | 153,231 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,293 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,372 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,748 |
| Regions of Italy | 0 | - | 4.92 | 76,250 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,433 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,425 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,423 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,341 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,166 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,355 |
| Animals in British History | 0 | - | 4.43 | 26,043 |
| London A-Z | 0 | - | 4.10 | 40,815 |
| Champions League Winners | 0 | - | 4.92 | 1,009,987 |
| Monarchies of Asia | 0 | - | 4.97 | 71,229 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,028 |
| Countries in World War II | 0 | - | 4.55 | 914,892 |
| Battle to Country | 0 | - | 4.91 | 53,541 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,389 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,942 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,650 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,818 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,393 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,131 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,056 |
| Russia Country Quiz | 0 | - | 4.83 | 114,706 |
| Russia A-Z | 0 | - | 4.46 | 27,268 |
| Countries That Border Russia | 0 | - | 4.98 | 462,853 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,472 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,417 |
| History of Austria | 0 | - | 4.70 | 17,906 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,779 |
| France Country Quiz | 0 | - | 4.70 | 135,194 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,178 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,868 |
| Germany Country Quiz | 0 | - | 4.83 | 158,193 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,636 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,079 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,840 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,669 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,615 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,618 |
| Byzantine History | 0 | - | 4.91 | 28,919 |
| Byzantine Emperors | 0 | - | 4.92 | 14,368 |
