| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,869 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,171 |
| Name the English Monarchs | 0 | - | 4.91 | 504,180 |
| Monarchies of Europe | 0 | - | 4.90 | 98,389 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,795 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,632 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,150 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,367 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,174 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,955 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,977 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,389 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,298 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,060 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,867 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,559 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,048 |
| Communist Countries in History | 0 | - | 4.63 | 496,673 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,290 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,694 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,065 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,974 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,432 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,685 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,629 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,541 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,253 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,453 |
| Countries in World War I | 0 | - | 4.88 | 228,522 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,166 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,665 |
| Russia A-Z | 0 | - | 4.46 | 27,270 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,442 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,157 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,854 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,790 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,517 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,411 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,681 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,501 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,666 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,321 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,151 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,217 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,766 |
| The Only European Country ... | 0 | - | 4.91 | 217,527 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,663 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,676 |
| Counties of England | 0 | - | 4.97 | 799,273 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,969 |
| British History A-Z #1 | 0 | - | 4.45 | 46,588 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,625 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,782 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,970 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,478 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,073 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,500 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,901 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,388 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,770 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,425 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,031 |
| European Countries with One Border | 0 | - | 4.97 | 183,166 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,949 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,700 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,621 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,453 |
| Slavic Countries | 0 | - | 4.96 | 111,933 |
| Russia by Picture | 0 | - | 4.41 | 20,438 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,209 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,138 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,903 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,260 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,398 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,220 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,285 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,189 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,275 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,410 |
| English Royal Consorts | 0 | - | 4.38 | 37,423 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,749 |
| Geography of the British Empire | 0 | - | 4.48 | 39,745 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,915 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,466 |
| Countries of the Popes | 0 | - | 4.79 | 128,371 |
| Monarchies of Asia | 0 | - | 4.97 | 71,255 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,049 |
| Countries in World War II | 0 | - | 4.55 | 915,095 |
| Political Movements by Country | 0 | - | 4.46 | 72,632 |
| Battle to Country | 0 | - | 4.91 | 53,569 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,024 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,524 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,417 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,045 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,110 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,832 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,482 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,199 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,617 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,534 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,048 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,746 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,462 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,112 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,313 |
| Countries that Border Poland | 0 | - | 4.99 | 172,649 |
| Russia Country Quiz | 0 | - | 4.83 | 114,738 |
| Countries That Border Russia | 0 | - | 4.98 | 462,936 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,000 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,152 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,506 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,453 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,425 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,687 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,792 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,682 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,215 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,977 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,291 |
| Countries Bordering France | 0 | - | 4.83 | 403,667 |
| Germany Country Quiz | 0 | - | 4.83 | 158,232 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,669 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,787 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,456 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,163 |
| Name that Greek Letter | 0 | - | 4.93 | 324,233 |
| Counties of Ireland | 0 | - | 4.92 | 196,138 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,722 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,647 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,039 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,436 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,394 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,138 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,275 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,302 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,233 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,414 |
| UK Immigration by Country | 0 | - | 4.94 | 141,198 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,257 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,416 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,362 |
| Medieval English History | 0 | - | 4.53 | 43,579 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,217 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,007 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,891 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,819 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,032 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,915 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,526 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,671 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,385 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,132 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,122 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,461 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,843 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,638 |
| Important Cities in WWII | 0 | - | 4.42 | 93,632 |
| U.S. States by Governor | 0 | - | 4.43 | 18,081 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,717 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,403 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,713 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,964 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,753 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,039 |
| Presidential Middle Names | 0 | - | 4.41 | 60,439 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,473 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,680 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,496 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,137 |
| The American Civil War | 0 | - | 4.62 | 52,506 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,354 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,995 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,027 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,276 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,598 |
| Random European Flag to Country | 0 | - | 4.89 | 183,034 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 83,388 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,100 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,559 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,934 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,897 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,133 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,034 |
| Germany A-Z | 0 | - | 4.56 | 62,706 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,703 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,782 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,042 |
| The Trojan War | 0 | - | 4.83 | 39,811 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,301 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,576 |
| Italy A-Z | 0 | - | 4.49 | 58,467 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,503 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,677 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,666 |
| Roman Emperors | 0 | - | 4.95 | 120,445 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,768 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,006 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,539 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,858 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,093 |
