| Countries of the Soviet Union | 0 | - | 4.98 | 194,829 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,206 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,869 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,214 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 80,872 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,810 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,709,646 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,849 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,761 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,895 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,035 |
| Every European Country Shape | 0 | - | 4.96 | 202,271 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,049 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,968 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 83,357 |
| Prime Ministers of Australia | 0 | - | 4.50 | 32,015 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,658 |
| Random European Flag to Country | 0 | - | 4.89 | 183,028 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,152 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,691 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,856 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,552 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 427,131 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 382,387 |
| Random European Countries on a Map | 0 | - | 4.97 | 284,345 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 319,417 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,169 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,415 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 97,523 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,289 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,146 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 192,667 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,498 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,552 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,691 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,561 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,214 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,266 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,379 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,777 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,041 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,948 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,787 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,584 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,137 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,352 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,168 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,307 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,430 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,295 |
| UK Immigration by Country | 0 | - | 4.94 | 141,190 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,239 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,232 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,911 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,455 |
| Countries of the Popes | 0 | - | 4.79 | 128,364 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,510 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,627 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,119 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,785 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,832 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,078 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,281 |
| Political Movements by Country | 0 | - | 4.46 | 72,630 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,720 |
| Pixelated United States Map | 0 | - | 4.88 | 94,494 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,109 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,558 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,180 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,541 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,831 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,875 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,251 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,413 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,611 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,545 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,408 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,550 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,674 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,555 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,129 |
| The Trojan War | 0 | - | 4.83 | 39,808 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,068 |
| Name that Greek Letter | 0 | - | 4.93 | 324,222 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,287 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,664 |
| Roman Emperors | 0 | - | 4.95 | 120,434 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,406 |
| Monty Python Quotes | 0 | - | 4.89 | 42,512 |
| Name the English Monarchs | 0 | - | 4.91 | 504,123 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,731 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,343 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,625 |
| Every Asian Country Shape | 0 | - | 4.95 | 88,011 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,101 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,709 |
| Hindu Countries | 0 | - | 4.86 | 50,318 |
| Every African Country Shape | 0 | - | 4.90 | 87,702 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,451 |
| National Founders | 0 | - | 4.40 | 83,890 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 86,631 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,439 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 72,082 |
| Divided Country Shape Puzzle #1 | 0 | - | 4.88 | 53,619 |
| South America Flags Map Quiz | 0 | - | 4.95 | 88,347 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,410 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,955 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,745 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 94,034 |
| Presidential Middle Names | 0 | - | 4.41 | 60,435 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,468 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,679 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 35,061 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,494 |
| The American Revolution | 0 | - | 4.52 | 54,295 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,592 |
| Russia by Picture | 0 | - | 4.41 | 20,435 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,032 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,013 |
| Ancient Greek Words | 0 | - | 4.93 | 111,935 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,559 |
| Italy by Picture | 0 | - | 4.41 | 30,993 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,503 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 102,027 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,438 |
| Animals in British History | 0 | - | 4.43 | 26,044 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 862,184 |
| Scotland A-Z | 0 | - | 4.73 | 41,342 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,918 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,301 |
| Flags of Countries that Border China | 0 | - | 4.94 | 99,771 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,228 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,568 |
| Random African Flag to Country | 0 | - | 4.88 | 75,244 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 79,193 |
| Flags of WW1 | 0 | - | 4.60 | 38,512 |
| Flags of the Countries that Start with C | 0 | - | 4.88 | 130,350 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 154,207 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 43,104 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 127,558 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,797 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,533 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,289 |
| First Ladies of the United States | 0 | - | 4.28 | 85,757 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,983 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,251 |
| U.S. Presidents in Order by First Letter | 0 | - | 4.32 | 77,285 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 305,513 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,238 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,232 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 24,006 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,465 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,661 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,860 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,928 |
| Europe Map Quiz | 0 | - | 5.00 | 4,772,356 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,726 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,058 |
| Europe Flag Map - Find the Errors | 0 | - | 4.24 | 61,887 |
| History of Russia Quiz | 0 | - | 4.47 | 31,957 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,393 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,666 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,697 |
| Mythology A-Z | 0 | - | 4.31 | 37,296 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,848 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,796 |
| History of Italy | 0 | - | 4.55 | 32,062 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 126,250 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,146 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 103,254 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,725 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,302 |
| Arthurian Legend | 0 | - | 4.33 | 25,132 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,965 |
| Satellite Images - The United Kingdom | 0 | - | 4.40 | 28,082 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,245 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 388,803 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,728 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,990 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 62,293 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,783 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,852 |
| British Football Team Logos | 0 | - | 4.06 | 68,871 |
| Pope Facts | 0 | - | 4.39 | 31,304 |
| Random Asian Countries on a Map | 0 | - | 4.91 | 170,411 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 119,257 |
| The Iraq War | 0 | - | 4.47 | 15,674 |
| The Vietnam War | 0 | - | 4.44 | 35,584 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 54,558 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,978 |
| Random African Countries on a Map | 0 | - | 4.99 | 296,906 |
| Africa Map with Random Merged Countries | 0 | - | 4.95 | 73,953 |
| Communist Countries in History | 0 | - | 4.63 | 496,644 |
| History of South Africa | 0 | - | 4.60 | 17,723 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,312 |
| Australian Capitals | 0 | - | 4.92 | 62,759 |
| Australia A-Z | 0 | - | 4.54 | 50,031 |
| History of Mexico | 0 | - | 4.58 | 15,339 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,973 |
| American Political Words | 0 | - | 4.39 | 23,439 |
