| Name the English Monarchs | 0 | - | 4.92 | 499,565 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,957 |
| Name that Greek Letter | 0 | - | 4.93 | 322,313 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,110 |
| The Trojan War | 0 | - | 4.83 | 39,533 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,024 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,223 |
| Roman Emperors | 0 | - | 4.95 | 119,036 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,909 |
| Countries Bordering France | 0 | - | 4.83 | 400,814 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,607 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,668 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,943 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,803 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,705 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,399 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,752 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,857 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,405 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,284 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,636 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,166 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,518 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,602 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,757 |
| Roman Names for Places | 0 | - | 4.62 | 58,013 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,666 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,419 |
| Departments of France | 0 | - | 4.93 | 53,158 |
| French History A-Z | 0 | - | 4.22 | 24,304 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,779 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,781 |
| British History A-Z #1 | 0 | - | 4.45 | 46,262 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,452 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,291 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,130 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,356 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,973 |
| History of France | 0 | - | 4.59 | 56,496 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,157 |
| Counties of Ireland | 0 | - | 4.92 | 193,799 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,601 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,787 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,581 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,098 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,289 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,757 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,270 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,183 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,991 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,961 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,632 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,203 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,265 |
| Geography of the French Empire | 0 | - | 4.45 | 26,983 |
| The French Revolution | 0 | - | 4.46 | 23,847 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,737 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,676 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,448 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,077 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,127 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,080 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,896 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,621 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,044 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,743 |
| English Royal Consorts | 0 | - | 4.37 | 37,247 |
| The Vietnam War | 0 | - | 4.43 | 35,371 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,002 |
| Countries in World War I | 0 | - | 4.88 | 227,188 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,015 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,809 |
| Countries that Beat France | 0 | - | 4.49 | 75,378 |
| France True or False? | 0 | - | 4.43 | 39,841 |
| French History Multiple Choice | 0 | - | 4.55 | 32,930 |
| German History A-Z | 0 | - | 4.49 | 24,495 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,852 |
| Ancient Greek Words | 0 | - | 4.93 | 111,011 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,004 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,486 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,067 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,881 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,026 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,882 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,735 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,796 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,724 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,700 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,232,788 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,531 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,138 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,033 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,614 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,123 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,692 |
| The Only European Country ... | 0 | - | 4.91 | 214,830 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,040 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,133 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,131 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,442 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,756 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,615 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,425 |
| Slavic Countries | 0 | - | 4.96 | 111,144 |
| History of Russia Quiz | 0 | - | 4.49 | 31,829 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,137 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,988 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,063 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,306 |
| History of Italy | 0 | - | 4.55 | 31,877 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,774 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,069 |
| Arthurian Legend | 0 | - | 4.33 | 25,068 |
| Counties of England | 0 | - | 4.97 | 791,778 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,682 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,878 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,440 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,655 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,452 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,573 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,014 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,992 |
| The American Revolution | 0 | - | 4.52 | 54,126 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,572 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,261 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,783 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,347 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,141 |
| Monarchies of Europe | 0 | - | 4.90 | 97,602 |
| European Countries with One Border | 0 | - | 4.97 | 181,998 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,882 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,597 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,970 |
| Countries That Border Russia | 0 | - | 4.98 | 460,039 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,441 |
| France Country Quiz | 0 | - | 4.70 | 134,391 |
| French Inventions | 0 | - | 4.08 | 13,873 |
| Regions of France | 0 | - | 4.78 | 119,754 |
| France Immigration by Country | 0 | - | 4.72 | 76,135 |
| History of Paris | 0 | - | 4.24 | 13,628 |
| Kings of France Quiz | 0 | - | 4.20 | 32,613 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,070 |
| States of Germany | 0 | - | 4.96 | 150,852 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,277 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,061 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,629 |
| Regions of Italy | 0 | - | 4.92 | 75,051 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,042 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,994 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,637 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,261 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,252 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,034 |
| Geography of the British Empire | 0 | - | 4.48 | 39,563 |
| Animals in British History | 0 | - | 4.44 | 25,917 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,379 |
| Champions League Winners | 0 | - | 4.92 | 999,760 |
| Countries in World War II | 0 | - | 4.54 | 907,472 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,215 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,089 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,435 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,672 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,764 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,669,646 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,642 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,237 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,527 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,405 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,893 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,041 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,623 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,880 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,057 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,344 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,486 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,374 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,874 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,201 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,729 |
| Countries that Border Poland | 0 | - | 4.99 | 171,692 |
| Russia Country Quiz | 0 | - | 4.85 | 113,950 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,522 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,301 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,025 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,887 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,152 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,996 |
| History of Austria | 0 | - | 4.70 | 17,788 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,594 |
| Countries Two Borders Away From France | 0 | - | 4.36 | 27,527 |
| Famous French People by Picture | 0 | - | 3.70 | 27,839 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,704 |
| Germany Country Quiz | 0 | - | 4.82 | 157,027 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,472 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,416 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,782 |
| Countries that Beat Greece | 0 | - | 4.53 | 48,720 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,849 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
