| Countries Invaded by the USSR | 0 | - | 4.29 | 87,925 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 24,168 |
| English Monarchs Quiz | 0 | - | 4.91 | 450,678 |
| Monarchies of Europe | 0 | - | 4.88 | 87,629 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 134,927 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 63,777 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 50,309 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,585 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,266 |
| Countries of the Popes | 0 | - | 4.85 | 111,787 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,907 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 182,062 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 116,351 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,533 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 34,184 |
| Communist Countries in History | 0 | - | 4.65 | 458,426 |
| Prime Ministers of the UK | 0 | - | 4.95 | 384,311 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,199,750 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,142 |
| Europe Map Quiz | 0 | - | 5.00 | 4,325,273 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,672 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 136,534 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 65,493 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 77,470 |
| Countries With the Most Russian Speakers | 0 | - | 4.95 | 56,991 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.81 | 10,104 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,164 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 153,874 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 209,851 |
| Countries in World War I | 0 | - | 4.88 | 211,001 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,522 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,286 |
| Houses of British Monarchs | 0 | - | 4.50 | 52,490 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,787 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 396,595 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 337,986 |
| Russia A-Z | 0 | - | 4.45 | 25,901 |
| Counties of England | 0 | - | 4.97 | 697,710 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,873 |
| British History A-Z | 0 | - | 4.47 | 39,811 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.56 | 13,844 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 355,115 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 168,825 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,742 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,056,282 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,197,934 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 94,106 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 179,072 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 139,521 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 188,607 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 77,690 |
| The Only European Country ... | 0 | - | 4.93 | 181,041 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 50,766 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 75,697 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 116,409 |
| Slavic Countries | 0 | - | 4.96 | 101,157 |
| UK Cities Map Quiz | 0 | - | 4.94 | 436,079 |
| Countries and Territories of the United Kingdom | 0 | - | 4.88 | 84,454 |
| Counties of England Map Quiz | 0 | - | 4.97 | 288,502 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,811 |
| English Royal Consorts | 0 | - | 4.28 | 34,693 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,091 |
| Geography of the British Empire | 0 | - | 4.51 | 37,231 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,806 |
| Name the Popes Quiz | 0 | - | 4.46 | 122,962 |
| Monarchies of Asia | 0 | - | 4.95 | 54,452 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,161 |
| European Diaspora - Top 11 Countries | 0 | - | 4.89 | 84,718 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 122,314 |
| Three Band Flags of Europe | 0 | - | 4.97 | 162,399 |
| Catholic Countries in Europe | 0 | - | 4.87 | 84,520 |
| Pixelated Europe Map | 0 | - | 4.90 | 110,297 |
| European Countries with One Border | 0 | - | 4.96 | 151,815 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 145,455 |
| Countries That Border Russia | 0 | - | 4.98 | 428,883 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,656 |
| Regions of France Map Quiz | 0 | - | 4.96 | 128,415 |
| Countries Bordering France | 0 | - | 4.87 | 359,749 |
| States of Germany Map Quiz | 0 | - | 4.92 | 121,388 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 22,345 |
| Countries Bordering Germany | 0 | - | 4.99 | 342,747 |
| Countries in World War II | 0 | - | 4.57 | 819,077 |
| Political Movements by Country | 0 | - | 4.46 | 68,832 |
| Battle to Country | 0 | - | 4.92 | 36,155 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 87,085 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 170,611 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,524 |
| Geography of the Spanish Empire | 0 | - | 4.48 | 35,354 |
| Countries Closest to Spain | 0 | - | 4.95 | 207,333 |
| UK Immigration by Country | 0 | - | 4.94 | 126,271 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 120,230 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,455 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 106,057 |
| Medieval English History | 0 | - | 4.52 | 41,010 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,813 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,871 |
| World Capitals Closest to London | 0 | - | 4.91 | 94,098 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 86,981 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,935 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 82,378 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 102,640 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,004 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 83,354 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,490 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,399 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,558 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 80,465 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 68,940 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,188 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 76,348 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,389 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 66,479 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,770 |
| Most Forested European Countries | 0 | - | 4.82 | 68,788 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 128,782 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 203,130 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 144,754 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 191,275 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 85,206 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 62,057 |
| Countries that Border Poland | 0 | - | 4.99 | 159,654 |
| Russia Country Quiz | 0 | - | 4.84 | 104,201 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.92 | 76,447 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,460 |
| Croatia Country Quiz | 0 | - | 4.81 | 37,779 |
| Countries that Border Hungary | 0 | - | 4.98 | 97,018 |
| Countries Bordering Serbia | 0 | - | 4.95 | 83,793 |
| Countries Bordering Austria | 0 | - | 4.97 | 110,704 |
| France Cities Map Quiz | 0 | - | 4.96 | 149,402 |
| Countries that Visit France the Most | 0 | - | 4.81 | 40,262 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,680 |
| Germany Country Quiz | 0 | - | 4.82 | 141,539 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 107,040 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,836 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 52,901 |
| Italy Country Quiz | 0 | - | 4.81 | 110,190 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 135,057 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 138,865 |
| Countries Bordering Italy | 0 | - | 4.95 | 95,067 |
| Countries Italy Declared War On | 0 | - | 4.79 | 40,208 |
| Countries Closest to Italy | 0 | - | 4.97 | 180,738 |
| National Founders | 0 | - | 4.39 | 79,936 |
| Important Cities in WWII | 0 | - | 4.48 | 84,191 |
| Greenland Country Quiz | 0 | - | 4.81 | 32,636 |
| Countries Closest to Iceland | 0 | - | 4.87 | 63,478 |
| Countries that Beat Portugal | 0 | - | 4.84 | 36,049 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 50,613 |
| Countries that Beat Spain | 0 | - | 4.95 | 56,262 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 90,850 |
| Monty Python Quotes | 0 | - | 4.89 | 40,527 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 351,076 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 465,662 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,820 |
| The Reign of Henry VIII | 0 | - | 4.24 | 26,367 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 19,073 |
| English First Names of the Middle Ages | 0 | - | 4.41 | 45,705 |
| British History Quiz for Dummies | 0 | - | 4.54 | 62,070 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.29 | 23,430 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 22,279 |
| The Life of Winston Churchill | 0 | - | 4.10 | 11,370 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 351,719 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.95 | 109,909 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 755,240 |
| Scotland A-Z | 0 | - | 4.75 | 37,986 |
| Pope Facts | 0 | - | 4.41 | 28,111 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 45,466 |
| Countries with the Most Hindus | 0 | - | 4.91 | 114,031 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,868 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 17,008 |
| U.S. Political Parties in History | 0 | - | 4.43 | 26,257 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,793 |
| U.S. Vice Presidents | 0 | - | 4.42 | 120,782 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 97,757 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 82,444 |
| U.S. Presidential Trivia #2 | 0 | - | 4.52 | 40,167 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,560 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,670 |
| The American Civil War | 0 | - | 4.75 | 49,292 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 100,856 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 101,593 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,291 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,179 |
| Random European Flag to Country | 0 | - | 4.89 | 162,937 |
| Russia by Picture | 0 | - | 4.35 | 18,908 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 65,212 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.87 | 89,777 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.81 | 31,263 |
| Moldova Country Quiz | 0 | - | 4.86 | 27,587 |
| Andorra Country Quiz | 0 | - | 4.87 | 28,192 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 89,847 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,279 |
| Germany A-Z | 0 | - | 4.65 | 50,193 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 63,256 |
| Countries that Beat Germany | 0 | - | 4.87 | 70,881 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,412 |
| The Trojan War | 0 | - | 4.81 | 36,179 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 588,486 |
| Name that Greek Letter | 0 | - | 4.94 | 297,289 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,426 |
| Italy A-Z | 0 | - | 4.43 | 40,789 |
