| Name the English Monarchs | 0 | - | 4.91 | 501,986 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,283 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,926 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,642 |
| The Trojan War | 0 | - | 4.83 | 39,675 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,653 |
| Name that Greek Letter | 0 | - | 4.93 | 323,254 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,668 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,466 |
| Roman Emperors | 0 | - | 4.95 | 119,793 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,215 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,821 |
| Countries in World War I | 0 | - | 4.88 | 227,957 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,928 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,729 |
| Monarchies of Europe | 0 | - | 4.90 | 98,029 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,028 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 79,953 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,457 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,827 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,731 |
| Countries Bordering France | 0 | - | 4.83 | 402,164 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,873 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,768 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,618 |
| Battle to Country | 0 | - | 4.91 | 53,231 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,602 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,021 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,882 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,906 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,888 |
| The American Civil War | 0 | - | 4.62 | 52,393 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,441 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,921 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,238 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,825 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,127 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,365 |
| Counties of Ireland | 0 | - | 4.92 | 194,932 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,802 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,876 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,009 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,801 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,175 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,426 |
| British History A-Z #1 | 0 | - | 4.45 | 46,438 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,586 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,766 |
| Countries in World War II | 0 | - | 4.54 | 911,621 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,829 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,116 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,221 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,968 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,385 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,476 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,843 |
| British Monopoly Board | 0 | - | 4.52 | 41,152 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,455 |
| English Royal Consorts | 0 | - | 4.37 | 37,336 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,753 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,743 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,189 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,005 |
| The Only European Country ... | 0 | - | 4.91 | 216,269 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,934 |
| German History A-Z | 0 | - | 4.49 | 24,590 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,244 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,716 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,315 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,813 |
| The Vietnam War | 0 | - | 4.44 | 35,500 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,810 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,157 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Ancient Greek Words | 0 | - | 4.93 | 111,455 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,557 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,634 |
| History of Italy | 0 | - | 4.55 | 31,957 |
| Italian History A-Z | 0 | - | 4.21 | 17,690 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,714 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,878 |
| Roman Names for Places | 0 | - | 4.62 | 58,226 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,637 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,197 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,139 |
| Spanish History A-Z | 0 | - | 4.37 | 19,279 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,185 |
| Counties of England | 0 | - | 4.97 | 795,628 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,825 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,617 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,523 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,821 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,166 |
| Important Cities in WWII | 0 | - | 4.42 | 93,407 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,544 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,073 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,397 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,056 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,943 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,198 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,042 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,132 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,917 |
| Slavic Countries | 0 | - | 4.96 | 111,559 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,853 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,125 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,650 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,056 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,245 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,035 |
| British Geography A-Z | 0 | - | 4.42 | 19,505 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,634 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,734 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,495 |
| Champions League Winners | 0 | - | 4.92 | 1,005,355 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,743 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,373 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,090 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,007 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,619 |
| European Countries with One Border | 0 | - | 4.97 | 182,617 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,437 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,098 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,754 |
| Countries That Border Russia | 0 | - | 4.98 | 461,381 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,803 |
| History of Austria | 0 | - | 4.70 | 17,850 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,269 |
| Geography of the French Empire | 0 | - | 4.45 | 27,040 |
| The French Revolution | 0 | - | 4.46 | 23,920 |
| Kings of France Quiz | 0 | - | 4.20 | 32,699 |
| History of France | 0 | - | 4.59 | 56,914 |
| French History A-Z | 0 | - | 4.23 | 24,596 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,678 |
| States of Germany | 0 | - | 4.96 | 152,186 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,951 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,260 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,486 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,646 |
| Regions of Italy | 0 | - | 4.92 | 75,710 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,173 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,024 |
| The Vikings! | 0 | - | 4.46 | 28,333 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,810 |
| The Portuguese Empire | 0 | - | 4.58 | 12,056 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,771 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,103 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,919 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,318 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,381 |
| Geography of the British Empire | 0 | - | 4.48 | 39,644 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 23,429 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,604 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,679 |
| Monarchies of Asia | 0 | - | 4.97 | 71,028 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,813 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,714 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,204 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,478 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,219 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,715 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,058 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,328 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,835 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,692,215 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,462 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,076 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,323 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,586 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,190 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,391 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,756 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,501 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,441 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,507 |
| Countries that Border Poland | 0 | - | 4.99 | 172,152 |
| Russia Country Quiz | 0 | - | 4.85 | 114,368 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,779 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,507 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,285 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,144 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,317 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,323 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,647 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,586 |
| Departments of France | 0 | - | 4.93 | 53,962 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,769 |
| Germany Country Quiz | 0 | - | 4.82 | 157,707 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,993 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,828 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,964 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,891 |
| Italy Country Quiz | 0 | - | 4.82 | 123,289 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,217 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,892 |
| Famous Italians by Picture | 0 | - | 4.06 | 21,931 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,531 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,069 |
| Byzantine History | 0 | - | 4.91 | 28,782 |
