| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,087 |
| Name that Greek Letter | 0 | - | 4.93 | 323,081 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,872 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,657 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,906 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,522 |
| Ancient Greek Words | 0 | - | 4.93 | 111,349 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,181 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,059 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,105 |
| German History A-Z | 0 | - | 4.49 | 24,571 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,585 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,656 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,878 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,119 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,279 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,698 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,600 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,538 |
| States of Germany | 0 | - | 4.96 | 151,897 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,882 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,931 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,331 |
| Germany Country Quiz | 0 | - | 4.82 | 157,574 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,591 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,267 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,123 |
| British History A-Z #1 | 0 | - | 4.45 | 46,400 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,469 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,333 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,775 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,715 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,087 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,387 |
| Name the English Monarchs | 0 | - | 4.91 | 501,469 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,808 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,263 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,485 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,388 |
| Which City in Europe? | 0 | - | 4.83 | 107,155 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,456 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| The Trojan War | 0 | - | 4.83 | 39,647 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,530 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,311 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,418 |
| Roman Emperors | 0 | - | 4.95 | 119,653 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,369 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,142 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,784 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,366 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,936 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,543 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,057 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,315 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,856 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,267 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,569 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,531 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,875 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,820 |
| The Only European Country ... | 0 | - | 4.91 | 215,977 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,766 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| Germany A-Z | 0 | - | 4.56 | 62,543 |
| History of Germany | 0 | - | 4.39 | 52,779 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,570 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,751 |
| Roman History by Picture | 0 | - | 4.46 | 26,437 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,000 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,612 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,164 |
| Counties of England | 0 | - | 4.97 | 794,776 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,606 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,807 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,172 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,421 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,964 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,666 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,156 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,244 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,978 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,902 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,958 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,596 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,498 |
| Monarchies of Europe | 0 | - | 4.90 | 97,948 |
| European Countries with One Border | 0 | - | 4.97 | 182,508 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,315 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,937 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,998 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,721 |
| Slavic Countries | 0 | - | 4.96 | 111,487 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,381 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,722 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,144 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,223 |
| Which City in Germany? | 0 | - | 4.50 | 136,266 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,766 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,428 |
| Regions of Italy | 0 | - | 4.92 | 75,538 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,863 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,630 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,999 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,546 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,065 |
| British Geography Quiz #3 | 0 | - | 4.56 | 30,393 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,420 |
| Champions League Winners | 0 | - | 4.92 | 1,003,688 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,037 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,607 |
| Name a Valid African Country | 0 | - | 4.98 | 153,753 |
| European Cities by Clue | 0 | - | 4.70 | 88,999 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,877 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,779 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,593 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,273 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,665 |
| Russia Country Quiz | 0 | - | 4.85 | 114,275 |
| Countries That Border Russia | 0 | - | 4.98 | 461,089 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,235 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,291 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,445 |
| Departments of France | 0 | - | 4.93 | 53,776 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| Countries Bordering France | 0 | - | 4.83 | 401,869 |
| History of France | 0 | - | 4.59 | 56,824 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,759 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,860 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,936 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Italy Country Quiz | 0 | - | 4.82 | 123,189 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,122 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,812 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,246 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,516 |
| Byzantine History | 0 | - | 4.91 | 28,755 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,656 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,367 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,225 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,307 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,297 |
| Geography of the British Empire | 0 | - | 4.48 | 39,630 |
| Medieval English History | 0 | - | 4.53 | 43,462 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,659 |
| England or Wales? | 0 | - | 4.94 | 45,599 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,733 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,757 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,605 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,531 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,927 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,504 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 38,980 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,286 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,186 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,040 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,272 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,344 |
| Countries that Border Poland | 0 | - | 4.99 | 172,049 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,720 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,226 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,088 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,800 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,738 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,242 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,616 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,184 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,788 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,089 |
| Countries that Beat France | 0 | - | 4.49 | 75,609 |
| France True or False? | 0 | - | 4.43 | 39,905 |
| French History Multiple Choice | 0 | - | 4.55 | 33,001 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,496 |
| Bundesliga Champions | 0 | - | 4.25 | 56,289 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,416 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,864 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,384 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,465 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,605 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,751 |
| Counties of Ireland | 0 | - | 4.92 | 194,627 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,427 |
| Italy A-Z | 0 | - | 4.49 | 58,155 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,749 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,698 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,695 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,860 |
| Roman Names for Places | 0 | - | 4.62 | 58,180 |
| History of The Netherlands | 0 | - | 4.46 | 17,407 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,299 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 53,053 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,620 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,632 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,163 |
