| Name the English Monarchs | 0 | - | 4.91 | 507,730 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,420 |
| Name that Greek Letter | 0 | - | 4.93 | 325,421 |
| British History A-Z #1 | 0 | - | 4.45 | 47,370 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,250 |
| The Trojan War | 0 | - | 4.83 | 40,126 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,368 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,736 |
| Roman Emperors | 0 | - | 4.95 | 121,532 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,138 |
| Countries Bordering France | 0 | - | 4.83 | 405,535 |
| German History A-Z | 0 | - | 4.49 | 24,958 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,986 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,326 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,255 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,610 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,014 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,051 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,851 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,682 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,536 |
| British Geography A-Z | 0 | - | 4.42 | 19,637 |
| British History A-Z #2 | 0 | - | 4.28 | 12,069 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,878 |
| Monarchies of Europe | 0 | - | 4.90 | 99,104 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,659 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,288 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,115 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,096 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,797 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,884 |
| Italian History A-Z | 0 | - | 4.16 | 17,966 |
| Countries Italy Declared War On | 0 | - | 4.77 | 50,624 |
| Spanish History A-Z | 0 | - | 4.37 | 19,545 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,258 |
| English Royal Consorts | 0 | - | 4.38 | 37,574 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,147 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,044 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,532 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,421 |
| Departments of France | 0 | - | 4.93 | 55,492 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,397 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,553 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,910 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,417 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,284 |
| Roman Names for Places | 0 | - | 4.62 | 58,821 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,181 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,193 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,676 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,100 |
| Europe Map Quiz | 0 | - | 5.00 | 4,795,556 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,344 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,090 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,326 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,264 |
| Counties of Ireland | 0 | - | 4.92 | 197,807 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,416 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,811 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,860 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,487 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,575 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,081 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,769 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,038 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,468 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,464 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,463 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,434 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,256 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,616 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,846 |
| Geography of the French Empire | 0 | - | 4.45 | 27,243 |
| The French Revolution | 0 | - | 4.47 | 24,175 |
| Kings of France Quiz | 0 | - | 4.22 | 32,979 |
| History of France | 0 | - | 4.61 | 57,775 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,576 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,699 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,598 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,342 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,278 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,358 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,049 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,470 |
| British Monopoly Board | 0 | - | 4.52 | 41,301 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,235 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,685 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,906 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,579 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,872 |
| Countries in World War I | 0 | - | 4.88 | 229,537 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,734 |
| Countries that Beat France | 0 | - | 4.48 | 76,544 |
| France True or False? | 0 | - | 4.44 | 40,126 |
| French History Multiple Choice | 0 | - | 4.55 | 33,287 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,766 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,202 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,324 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,341 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,366 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,116 |
| The Reign of Queen Victoria | 0 | - | 4.34 | 23,579 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,894 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,962 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,410 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,736 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,834 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,626 |
| The Only European Country ... | 0 | - | 4.91 | 219,807 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,946 |
| History of Russia Quiz | 0 | - | 4.47 | 32,033 |
| Germany A-Z | 0 | - | 4.56 | 62,927 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,689 |
| Ancient Greek Words | 0 | - | 4.93 | 112,743 |
| Mythology A-Z | 0 | - | 4.31 | 37,469 |
| History of Italy | 0 | - | 4.55 | 32,201 |
| Italy A-Z | 0 | - | 4.49 | 58,897 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,709 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,662 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,867 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,485 |
| Counties of England | 0 | - | 4.97 | 804,831 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,158 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,863 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 363,122 |
| Top 10 Oldest African Countries | 0 | - | 4.87 | 28,331 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,293 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,864 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,602 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,043 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,476 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,812 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,965 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,985 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,941 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,273 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,367 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,821 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,729 |
| European Countries with One Border | 0 | - | 4.97 | 184,123 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,835 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,369 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,450 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,969 |
| Slavic Countries | 0 | - | 4.96 | 112,572 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,066 |
| Russian History A-Z | 0 | - | 4.35 | 32,330 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,634 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,480 |
| French Inventions | 0 | - | 4.10 | 13,933 |
| Regions of France | 0 | - | 4.70 | 122,524 |
| France Immigration by Country | 0 | - | 4.70 | 77,047 |
| History of Paris | 0 | - | 4.24 | 13,687 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,075 |
| States of Germany | 0 | - | 4.95 | 155,072 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,869 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,430 |
| Figures from Greek Mythology | 0 | - | 4.92 | 194,685 |
| Regions of Italy | 0 | - | 4.92 | 77,337 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,978 |
| Regions of Spain Quiz | 0 | - | 4.91 | 115,691 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,971 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,521 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,702 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,555 |
| Animals in British History | 0 | - | 4.43 | 26,131 |
| London A-Z | 0 | - | 4.10 | 40,919 |
| Champions League Winners | 0 | - | 4.92 | 1,018,790 |
| Monarchies of Asia | 0 | - | 4.97 | 71,650 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,393 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,276 |
| Countries in World War II | 0 | - | 4.55 | 920,816 |
| Battle to Country | 0 | - | 4.91 | 54,171 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 93,011 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,201 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,055 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,084 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,483 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,681 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,215 |
| Russia Country Quiz | 0 | - | 4.83 | 115,521 |
| Russia A-Z | 0 | - | 4.46 | 27,337 |
| Countries That Border Russia | 0 | - | 4.98 | 465,123 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,877 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.85 | 35,676 |
| History of Austria | 0 | - | 4.70 | 17,995 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,030 |
| France Country Quiz | 0 | - | 4.70 | 135,875 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,166 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,036 |
| Germany Country Quiz | 0 | - | 4.82 | 159,177 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,322 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,582 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,305 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,081 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,098 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,510 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,303 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,800 |
| Byzantine History | 0 | - | 4.91 | 29,066 |
