| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,468 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,687 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,384 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,243 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,433 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,928 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,522 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,480 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,089 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 80,696 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,522 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,883 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,219 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,694,197 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,626 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,253 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,779 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,962 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,498 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,469 |
| Name the English Monarchs | 0 | - | 4.91 | 502,198 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,909 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,490 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,772 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,789 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,418 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,296 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,766 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,604 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,245 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,381 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,085 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,202 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,764 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,628 |
| The American Revolution | 0 | - | 4.52 | 54,234 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,827 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,448 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,258 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,456 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,087 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,577 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,116 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,475 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,075 |
| The Only European Country ... | 0 | - | 4.91 | 216,380 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,960 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,990 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,015 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,176 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,013 |
| Slavic Countries | 0 | - | 4.96 | 111,588 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,937 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,274 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,953 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,100 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,299 |
| Counties of England | 0 | - | 4.97 | 795,935 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,838 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,843 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,783 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,060 |
| Countries of the Popes | 0 | - | 4.79 | 128,030 |
| The Vietnam War | 0 | - | 4.44 | 35,510 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,771 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,546 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,516 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,345 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,956 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,069 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,842 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,781 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,947 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,042 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,910 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,768 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,409 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,156 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,663 |
| Monarchies of Europe | 0 | - | 4.90 | 98,060 |
| European Countries with One Border | 0 | - | 4.97 | 182,673 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,481 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,623 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,555 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,118 |
| Russia Country Quiz | 0 | - | 4.85 | 114,402 |
| Countries That Border Russia | 0 | - | 4.98 | 461,501 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,131 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,981 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,303 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,833 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,324 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,664 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,295 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,631 |
| Countries Bordering France | 0 | - | 4.83 | 402,339 |
| Germany Country Quiz | 0 | - | 4.82 | 157,752 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,711 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,029 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,224 |
| Italy Country Quiz | 0 | - | 4.82 | 123,326 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,268 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,936 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,810 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,554 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,887 |
| UK Immigration by Country | 0 | - | 4.94 | 140,803 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,663 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,941 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,392 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,338 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,413 |
| Geography of the British Empire | 0 | - | 4.48 | 39,654 |
| Medieval English History | 0 | - | 4.53 | 43,495 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,151 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,841 |
| The Iraq War | 0 | - | 4.47 | 15,647 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,986 |
| Political Movements by Country | 0 | - | 4.46 | 72,505 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,964 |
| Hindu Countries | 0 | - | 4.86 | 50,086 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,222 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,530 |
| Arms Exports - United States | 0 | - | 4.75 | 62,358 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,521 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,639 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,386 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,722 |
| Presidential Middle Names | 0 | - | 4.41 | 60,185 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,277 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,545 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,966 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,398 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,683 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,198 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,083 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,485 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,338 |
| Random European Flag to Country | 0 | - | 4.89 | 182,229 |
| Countries that Border Poland | 0 | - | 4.99 | 172,195 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,304 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,569 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,799 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,494 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,658 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,607 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 29,803 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,353 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,168 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,843 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,778 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,345 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,274 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,664 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,841 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,143 |
| Germany A-Z | 0 | - | 4.56 | 62,579 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,299 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,458 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,432 |
| The Trojan War | 0 | - | 4.83 | 39,691 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,868 |
| Name that Greek Letter | 0 | - | 4.93 | 323,305 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,731 |
| Counties of Ireland | 0 | - | 4.92 | 195,038 |
| Italy A-Z | 0 | - | 4.49 | 58,244 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,831 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,422 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,925 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,485 |
| Roman Emperors | 0 | - | 4.95 | 119,878 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,513 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,787 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,269 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,145 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,846 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,885 |
| Arthurian Legend | 0 | - | 4.33 | 25,106 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,033 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,477 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,287 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,522 |
| Monty Python Quotes | 0 | - | 4.88 | 42,455 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 493,188 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,745 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,253 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,775 |
| British History A-Z #1 | 0 | - | 4.45 | 46,454 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,142 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,628 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,632 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,126 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,939 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,543 |
| History of Scotland | 0 | - | 4.51 | 21,086 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,600 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,779 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,328 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 400,943 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,895 |
