| Name the English Monarchs | 0 | - | 4.92 | 497,977 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,995 |
| Name that Greek Letter | 0 | - | 4.94 | 321,701 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,961 |
| The Trojan War | 0 | - | 4.83 | 39,435 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,547 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,057 |
| Roman Emperors | 0 | - | 4.95 | 118,498 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,315 |
| Countries Bordering France | 0 | - | 4.83 | 399,217 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,519 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,539 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,808 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,607 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,966 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,440 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,428 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,125 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,029 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,158 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,911 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,438 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,539 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,672 |
| Roman Names for Places | 0 | - | 4.62 | 57,879 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,299 |
| Departments of France | 0 | - | 4.93 | 52,843 |
| French History A-Z | 0 | - | 4.17 | 19,809 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,081 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,528 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,623 |
| British History A-Z #1 | 0 | - | 4.45 | 45,844 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,326 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,121 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,754 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,984 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,784 |
| History of France | 0 | - | 4.59 | 56,067 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,364 |
| Counties of Ireland | 0 | - | 4.92 | 193,103 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,461 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,349 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,377 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,322 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,145 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,511 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,645 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,700 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,743 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,773 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 397,261 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,236 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,152 |
| Geography of the French Empire | 0 | - | 4.48 | 26,936 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,390 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,467 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,424 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,883 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,117 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,863 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,683 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,469 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,849 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,329 |
| English Royal Consorts | 0 | - | 4.37 | 37,165 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,614 |
| The Vietnam War | 0 | - | 4.43 | 35,299 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,425 |
| Countries in World War I | 0 | - | 4.88 | 226,627 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,329 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,486 |
| Countries that Beat France | 0 | - | 4.49 | 75,180 |
| France True or False? | 0 | - | 4.43 | 39,784 |
| French History Multiple Choice | 0 | - | 4.55 | 32,879 |
| German History A-Z | 0 | - | 4.49 | 24,241 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,245 |
| Ancient Greek Words | 0 | - | 4.92 | 110,712 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,957 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,351 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,026 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,689 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,960 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,837 |
| The Reign of Queen Elizabeth II | 0 | - | 4.35 | 35,680 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,164 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,467 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,026 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,926 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,909 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,588 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,723 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,298 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,369 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,480 |
| The Only European Country ... | 0 | - | 4.91 | 213,884 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,870 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,956 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,564 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,762 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,364 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,277 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,213 |
| Slavic Countries | 0 | - | 4.96 | 110,872 |
| History of Russia Quiz | 0 | - | 4.49 | 31,795 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,095 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,487 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,984 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,290 |
| History of Italy | 0 | - | 4.55 | 31,817 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,592 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,485 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,983 |
| Arthurian Legend | 0 | - | 4.33 | 25,050 |
| Counties of England | 0 | - | 4.97 | 789,309 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,415 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,802 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,395 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,614 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,430 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,546 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,988 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,865 |
| The American Revolution | 0 | - | 4.52 | 54,058 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,339 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,048 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,409 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,880 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,831 |
| Monarchies of Europe | 0 | - | 4.90 | 97,335 |
| European Countries with One Border | 0 | - | 4.97 | 181,644 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,540 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,278 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,024 |
| Countries That Border Russia | 0 | - | 4.98 | 458,949 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,217 |
| France Country Quiz | 0 | - | 4.70 | 133,855 |
| French Inventions | 0 | - | 4.08 | 13,866 |
| Regions of France | 0 | - | 4.78 | 119,280 |
| France Immigration by Country | 0 | - | 4.72 | 75,969 |
| History of Paris | 0 | - | 4.24 | 13,616 |
| Kings of France Quiz | 0 | - | 4.20 | 32,558 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,699 |
| States of Germany | 0 | - | 4.96 | 150,094 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,026 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,935 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,980 |
| Regions of Italy | 0 | - | 4.92 | 74,736 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,824 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,365 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,201 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,945 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,180 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,792 |
| Geography of the British Empire | 0 | - | 4.48 | 39,476 |
| Animals in British History | 0 | - | 4.44 | 25,870 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,339 |
| Champions League Winners | 0 | - | 4.92 | 996,485 |
| Countries in World War II | 0 | - | 4.54 | 904,651 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,910 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,870 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,184 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,369 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,686 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,655,108 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,273 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,052 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,259 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,127 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,795 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,861 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,167 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,271 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,847 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,113 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,578 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,237 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,193 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,837 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,266 |
| Countries that Border Poland | 0 | - | 4.99 | 171,368 |
| Russia Country Quiz | 0 | - | 4.85 | 113,649 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,382 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,515 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,858 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,705 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,041 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,765 |
| History of Austria | 0 | - | 4.70 | 17,753 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,214 |
| Countries Two Borders Away From France | 0 | - | 4.36 | 27,489 |
| Famous French People by Picture | 0 | - | 3.70 | 27,811 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,628 |
| Germany Country Quiz | 0 | - | 4.82 | 156,571 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,162 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,385 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,754 |
| Countries that Beat Greece | 0 | - | 4.52 | 48,591 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,780 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,773 |
