| Countries Invaded by the USSR | 0 | - | 4.29 | 86,706 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.42 | 23,519 |
| English Monarchs Quiz | 0 | - | 4.91 | 442,556 |
| Monarchies of Europe | 0 | - | 4.88 | 86,149 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,183 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 61,538 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.93 | 47,943 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,634 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,182 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,206 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,877 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,722 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,471 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 33,751 |
| Communist Countries in History | 0 | - | 4.65 | 451,015 |
| Prime Ministers of the UK | 0 | - | 4.95 | 377,138 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,727 |
| Europe Map Quiz | 0 | - | 5.00 | 4,250,862 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,465 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,067 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 75,678 |
| Countries With the Most Russian Speakers | 0 | - | 4.94 | 55,311 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,595 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,130,390 |
| Canadian Prime Ministers Quiz | 0 | - | 4.56 | 45,664 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,387 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 206,272 |
| Countries in World War I | 0 | - | 4.89 | 208,025 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 98,794 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 175,489 |
| Houses of British Monarchs | 0 | - | 4.50 | 51,674 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 45,984 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 391,501 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 333,622 |
| European Secessionist Movements on a Map | 0 | - | 4.55 | 31,098 |
| Russia A-Z | 0 | - | 4.45 | 25,698 |
| Counties of England | 0 | - | 4.96 | 682,140 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,123 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.55 | 13,742 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 350,600 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 164,648 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,367 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,030,980 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,169,567 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,732 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,461 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,306 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,212 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 76,143 |
| The Only European Country ... | 0 | - | 4.94 | 175,782 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.90 | 47,590 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,661 |
| Eastern Europe Map Quiz | 0 | - | 4.88 | 114,644 |
| Slavic Countries | 0 | - | 4.96 | 99,730 |
| UK Cities Map Quiz | 0 | - | 4.94 | 430,471 |
| Parts of the United Kingdom | 0 | - | 4.88 | 82,892 |
| Counties of England Map Quiz | 0 | - | 4.97 | 285,030 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,461 |
| English Royal Consorts | 0 | - | 4.27 | 34,334 |
| Countries the UK Declared War On | 0 | - | 4.57 | 110,824 |
| The Reign of Queen Elizabeth I | 0 | - | 4.50 | 29,487 |
| Name the Popes Quiz | 0 | - | 4.44 | 99,444 |
| Countries of the Popes | 0 | - | 4.77 | 78,876 |
| Monarchies of Asia | 0 | - | 4.95 | 53,548 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,401 |
| European Diaspora - Top 11 Countries | 0 | - | 4.91 | 82,694 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 119,376 |
| Three Band Flags of Europe | 0 | - | 4.97 | 159,384 |
| Catholic Countries in Europe | 0 | - | 4.87 | 82,626 |
| Pixelated Europe Map | 0 | - | 4.89 | 108,387 |
| European Countries with One Border | 0 | - | 4.96 | 148,998 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,261 |
| Countries That Border Russia | 0 | - | 4.98 | 423,032 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 100,879 |
| Regions of France Map Quiz | 0 | - | 4.96 | 126,224 |
| Countries Bordering France | 0 | - | 4.87 | 354,708 |
| States of Germany Map Quiz | 0 | - | 4.91 | 119,380 |
| Countries Closest to Germany A-Z | 0 | - | 4.96 | 8,046 |
| Countries Bordering Germany | 0 | - | 4.99 | 338,502 |
| Countries in World War II | 0 | - | 4.67 | 800,426 |
| Political Movements by Country | 0 | - | 4.46 | 68,142 |
| Battle to Country | 0 | - | 4.92 | 34,732 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 85,207 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 167,897 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 91,762 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 34,809 |
| Countries Closest to Spain | 0 | - | 4.95 | 204,243 |
| UK Immigration by Country | 0 | - | 4.95 | 123,990 |
| United Kingdom Country Quiz | 0 | - | 4.93 | 116,954 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 61,547 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 101,918 |
| British History A-Z | 0 | - | 4.48 | 30,959 |
| Medieval English History | 0 | - | 4.52 | 40,529 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,221 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,589 |
| World Capitals Closest to London | 0 | - | 4.90 | 92,874 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 84,731 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,061 |
| Top 10 Richest Countries in Asia | 0 | - | 4.86 | 72,320 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,550 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.90 | 91,470 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 81,094 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,294 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 66,831 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,563 |
| Category Elimination - African Geography #1 | 0 | - | 4.89 | 78,648 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,108 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,281 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,598 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,194 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 65,715 |
| Most Guessed European Capitals | 0 | - | 4.89 | 95,999 |
| Most Forested European Countries | 0 | - | 4.82 | 67,526 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 127,399 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 197,989 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 140,893 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 186,362 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 83,281 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,279 |
| Countries that Border Poland | 0 | - | 4.99 | 157,570 |
| Russia Country Quiz | 0 | - | 4.84 | 102,233 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.94 | 75,425 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,209 |
| Countries that Border Hungary | 0 | - | 4.98 | 95,736 |
| Countries Bordering Serbia | 0 | - | 4.95 | 82,298 |
| Countries Bordering Austria | 0 | - | 4.97 | 109,423 |
| France Cities Map Quiz | 0 | - | 4.95 | 146,664 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,495 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 65,864 |
| Germany Country Quiz | 0 | - | 4.83 | 138,768 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 104,996 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,032 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 51,186 |
| Italy Country Quiz | 0 | - | 4.81 | 107,501 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 132,145 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 126,112 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,505 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,634 |
| Countries Closest to Italy | 0 | - | 4.97 | 177,450 |
| National Founders | 0 | - | 4.38 | 78,964 |
| Important Cities in WWII | 0 | - | 4.48 | 82,551 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,242 |
| Roman Emperors | 0 | - | 4.95 | 94,614 |
| Greenland Country Quiz | 0 | - | 4.82 | 32,016 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,008 |
| Countries that Beat Portugal | 0 | - | 4.82 | 35,176 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 49,952 |
| Countries that Beat Spain | 0 | - | 4.96 | 55,350 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,428 |
| Monty Python Quotes | 0 | - | 4.89 | 40,221 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 345,336 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 461,479 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,717 |
| Geography of the British Empire | 0 | - | 4.49 | 28,026 |
| The Reign of Henry VIII | 0 | - | 4.24 | 26,151 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 18,895 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,084 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.29 | 23,250 |
| The Reign of Queen Victoria | 0 | - | 4.33 | 22,128 |
| The Life of Winston Churchill | 0 | - | 4.10 | 11,299 |
| 2025 Football League Teams | 0 | - | 4.93 | 340,596 |
| Top 4 in English Football, 1888–2024 | 0 | - | 4.95 | 105,325 |
| 2025 English Premier League Teams | 0 | - | 4.85 | 729,821 |
| Scotland A-Z | 0 | - | 4.75 | 37,522 |
| Pope Facts | 0 | - | 4.44 | 17,448 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,252 |
| Countries with the Most Hindus | 0 | - | 4.93 | 112,292 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,232 |
| U.S. States by Governor Quiz | 0 | - | 4.42 | 16,879 |
| U.S. Political Parties in History | 0 | - | 4.42 | 26,032 |
| U.S. Government Agencies | 0 | - | 4.41 | 17,488 |
| U.S. Vice Presidents | 0 | - | 4.42 | 117,880 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,033 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.56 | 80,398 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,179 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,371 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,391 |
| The American Civil War | 0 | - | 4.72 | 48,629 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,240 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,764 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,864 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,407 |
| Random European Flag to Country | 0 | - | 4.90 | 159,990 |
| Russia by Picture | 0 | - | 4.35 | 18,656 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 64,175 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.87 | 88,499 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.82 | 30,632 |
| Moldova Country Quiz | 0 | - | 4.87 | 27,047 |
| Andorra Country Quiz | 0 | - | 4.88 | 27,545 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,393 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,892 |
| Germany A-Z | 0 | - | 4.70 | 49,432 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 61,609 |
| Countries that Beat Germany | 0 | - | 4.87 | 69,446 |
| Olympian Gods Quiz | 0 | - | 4.96 | 454,801 |
| The Trojan War | 0 | - | 4.81 | 35,609 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 579,155 |
| Name that Greek Letter | 0 | - | 4.94 | 293,916 |
| Italy A-Z | 0 | - | 4.43 | 40,350 |
| Countries that Beat Italy | 0 | - | 4.87 | 44,684 |
