| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,924 |
| Name the English Monarchs | 0 | - | 4.91 | 506,129 |
| Monarchies of Europe | 0 | - | 4.90 | 98,803 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,291 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,211 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,683 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,783 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,514 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,082 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,723,905 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,814 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,737 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,174 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,610 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,636 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,676 |
| Communist Countries in History | 0 | - | 4.63 | 498,007 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,719 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,988 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,116 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,273 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,004 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,680 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,086 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,894 |
| Russia A-Z | 0 | - | 4.46 | 27,312 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,394 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,529 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,760 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,042 |
| Countries in World War I | 0 | - | 4.88 | 229,074 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,369 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,480 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,646 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,104 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,000 |
| The Only European Country ... | 0 | - | 4.91 | 218,817 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,415 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,244 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,747 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,672 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,945 |
| British History A-Z #1 | 0 | - | 4.45 | 47,209 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,928 |
| Name a Valid U.S. President #1 | 0 | - | 4.90 | 193,687 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,836 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,256,866 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,121 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,439 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,985 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,608 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,726 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,292 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,122 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,729 |
| Slavic Countries | 0 | - | 4.96 | 112,320 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,507 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,579 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,416 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,314 |
| Counties of England | 0 | - | 4.97 | 802,411 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,081 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,649 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,187 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,795 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,772 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,134 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,441 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,423 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,490 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,720 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,423 |
| European Countries with One Border | 0 | - | 4.97 | 183,709 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,465 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,653 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,779 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,396 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,815 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,527 |
| Russia Country Quiz | 0 | - | 4.83 | 115,274 |
| Russia by Picture | 0 | - | 4.41 | 20,476 |
| Countries That Border Russia | 0 | - | 4.98 | 464,358 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,189 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,714 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,433 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,564 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,916 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,563 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,737 |
| Countries Bordering France | 0 | - | 4.83 | 404,746 |
| Germany Country Quiz | 0 | - | 4.82 | 158,773 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,750 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,033 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,699 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,160 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,988 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,622 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,425 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,798 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,774 |
| UK Immigration by Country | 0 | - | 4.94 | 141,643 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,908 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,483 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,954 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,454 |
| English Royal Consorts | 0 | - | 4.38 | 37,511 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,209 |
| Geography of the British Empire | 0 | - | 4.48 | 39,840 |
| Medieval English History | 0 | - | 4.53 | 43,643 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,014 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,869 |
| Countries of the Popes | 0 | - | 4.79 | 128,690 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,718 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,111 |
| Monarchies of Asia | 0 | - | 4.97 | 71,478 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,273 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,646 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,261 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,461 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,282 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,361 |
| Countries in World War II | 0 | - | 4.53 | 918,375 |
| Political Movements by Country | 0 | - | 4.46 | 72,754 |
| Battle to Country | 0 | - | 4.91 | 53,914 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,782 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,141 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,861 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,667 |
| The American Civil War | 0 | - | 4.62 | 52,620 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,328 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,799 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,697 |
| Countries that Border Poland | 0 | - | 4.99 | 173,110 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,231 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,547 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,980 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,033 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,914 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,624 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,132 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,448 |
| Germany A-Z | 0 | - | 4.56 | 62,849 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,260 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,489 |
| The Trojan War | 0 | - | 4.83 | 39,967 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,568 |
| Name that Greek Letter | 0 | - | 4.93 | 324,893 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,880 |
| Counties of Ireland | 0 | - | 4.92 | 197,198 |
| Italy A-Z | 0 | - | 4.49 | 58,718 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,226 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,136 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,311 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,562 |
| Roman Emperors | 0 | - | 4.95 | 121,105 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,100 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,843 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,305 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,038 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,319 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,794 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,039 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,277 |
| Monty Python Quotes | 0 | - | 4.89 | 42,602 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,860 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,053 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,302 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,079 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,021 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,562 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,976 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,871 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,034 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,268 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,106 |
| Hindu Countries | 0 | - | 4.87 | 50,557 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,957 |
| National Founders | 0 | - | 4.40 | 83,962 |
| Important Cities in WWII | 0 | - | 4.42 | 93,853 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,390 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,527 |
| Names of Generations | 0 | - | 4.09 | 45,490 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,668 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,466 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,772 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,527 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,273 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,593 |
| Presidential Middle Names | 0 | - | 4.41 | 60,701 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,672 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,881 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,185 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,621 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,210 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,800 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,430 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,179 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,325 |
