| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,942 |
| Countries of the Soviet Union | 0 | - | 4.98 | 195,602 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,590 |
| Name the English Monarchs | 0 | - | 4.91 | 506,767 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,443 |
| Monarchies of Europe | 0 | - | 4.90 | 98,913 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,420 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,596 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,850 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,898 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,621 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,118 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,250 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,949 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,844 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,196 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,788 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,840 |
| Communist Countries in History | 0 | - | 4.63 | 498,362 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,828 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,486 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,284 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,334 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,126 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,512 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,948 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,792 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,220 |
| Countries in World War I | 0 | - | 4.88 | 229,230 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 428,615 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 383,682 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,916 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,325 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,235 |
| The Only European Country ... | 0 | - | 4.91 | 219,182 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,608 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,848 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,049 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,979 |
| British History A-Z #1 | 0 | - | 4.45 | 47,279 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,974 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 193,861 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,896 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,959 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,088 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,615 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,126 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,937 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,808 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,533 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,234 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,818 |
| Slavic Countries | 0 | - | 4.96 | 112,412 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 84,092 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,628 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,473 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,538 |
| Counties of England | 0 | - | 4.97 | 803,266 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,107 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,653 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,207 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,870 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,854 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,157 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,870 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,576 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,652 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,800 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,508 |
| European Countries with One Border | 0 | - | 4.97 | 183,861 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,580 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,985 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,010 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,798 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,941 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,588 |
| Russia Country Quiz | 0 | - | 4.83 | 115,345 |
| Russia A-Z | 0 | - | 4.46 | 27,318 |
| Countries That Border Russia | 0 | - | 4.98 | 464,602 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,197 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,773 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,500 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,603 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,952 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,688 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,850 |
| Countries Bordering France | 0 | - | 4.83 | 405,011 |
| Germany Country Quiz | 0 | - | 4.82 | 158,887 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,849 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,113 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,945 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,277 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,085 |
| Countries Italy Declared War On | 0 | - | 4.70 | 45,603 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,522 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,919 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,977 |
| UK Immigration by Country | 0 | - | 4.94 | 141,760 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,076 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,553 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,121 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,468 |
| English Royal Consorts | 0 | - | 4.38 | 37,536 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,288 |
| Geography of the British Empire | 0 | - | 4.48 | 39,851 |
| Medieval English History | 0 | - | 4.53 | 43,662 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 29,043 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,976 |
| Countries of the Popes | 0 | - | 4.79 | 128,771 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,773 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,426 |
| Monarchies of Asia | 0 | - | 4.97 | 71,527 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,407 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,772 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,308 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,578 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,377 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,472 |
| Countries in World War II | 0 | - | 4.53 | 919,238 |
| Political Movements by Country | 0 | - | 4.46 | 72,789 |
| Battle to Country | 0 | - | 4.91 | 54,003 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,362 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,149 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,866 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,722 |
| The American Civil War | 0 | - | 4.62 | 52,638 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,365 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,831 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,755 |
| Countries that Border Poland | 0 | - | 4.99 | 173,211 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,502 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,294 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,661 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,645 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,954 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,025 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,120 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,964 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,828 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,162 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,496 |
| Germany A-Z | 0 | - | 4.56 | 62,873 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,364 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,758 |
| The Trojan War | 0 | - | 4.83 | 40,006 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,213 |
| Name that Greek Letter | 0 | - | 4.93 | 325,068 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,019 |
| Counties of Ireland | 0 | - | 4.92 | 197,397 |
| Italy A-Z | 0 | - | 4.49 | 58,775 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,275 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,208 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,437 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,612 |
| Roman Emperors | 0 | - | 4.95 | 121,267 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,177 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,899 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,316 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,179 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,368 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,893 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,113 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,461 |
| Monty Python Quotes | 0 | - | 4.89 | 42,613 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,876 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,106 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,329 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,095 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,078 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,568 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,003 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,874 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,087 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,326 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,173 |
| Hindu Countries | 0 | - | 4.87 | 50,599 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,059 |
| National Founders | 0 | - | 4.40 | 83,980 |
| Important Cities in WWII | 0 | - | 4.42 | 93,944 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,427 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,565 |
| Names of Generations | 0 | - | 4.09 | 45,544 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,750 |
| U.S. States by Governor | 0 | - | 4.43 | 18,115 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,771 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,480 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,783 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 109,582 |
| U.S. Presidents by Event | 0 | - | 4.58 | 35,376 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.62 | 94,672 |
| Presidential Middle Names | 0 | - | 4.41 | 60,749 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,708 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,910 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,219 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,640 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,232 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,909 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,565 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,233 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,345 |
