| Countries of the Soviet Union | 0 | - | 4.98 | 194,208 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,674 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,712 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,635 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,455 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,928 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,673,873 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,070 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,664 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,884 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,856 |
| Every European Country Shape | 0 | - | 4.96 | 200,826 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,788 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,410 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,381 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,790 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,279 |
| Random European Flag to Country | 0 | - | 4.89 | 181,555 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,091 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,079 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,635 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,889 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,999 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,378 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,649 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,763 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,783 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,463 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,644 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,834 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,346 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,687 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,938 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,631 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,341 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,391 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,741 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,280 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,046 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,309 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,173 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,765 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,822 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,849 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,680 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,530 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,860 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,956 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,489 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,371 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,911 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,147 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,426 |
| UK Immigration by Country | 0 | - | 4.94 | 140,319 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,957 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,664 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,644 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,578 |
| Countries of the Popes | 0 | - | 4.79 | 127,606 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,701 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,446 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,419 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,618 |
| Political Movements by Country | 0 | - | 4.46 | 72,390 |
| Hindu Countries | 0 | - | 4.86 | 49,821 |
| Every African Country Shape | 0 | - | 4.90 | 86,607 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,518 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,229 |
| Pixelated United States Map | 0 | - | 4.89 | 93,813 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,976 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,432 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,116 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,491 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,710 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,833 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,783 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,328 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,350 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,509 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,476 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,185 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,867 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,413 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,181 |
| The Trojan War | 0 | - | 4.83 | 39,564 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,600 |
| Name that Greek Letter | 0 | - | 4.93 | 322,538 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,162 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,284 |
| Roman Emperors | 0 | - | 4.95 | 119,239 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,657 |
| Monty Python Quotes | 0 | - | 4.88 | 42,377 |
| Name the English Monarchs | 0 | - | 4.92 | 500,109 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,868 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,143 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,577 |
| Every Asian Country Shape | 0 | - | 4.95 | 86,997 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,029 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,620 |
| National Founders | 0 | - | 4.40 | 83,736 |
| Country Picture Puzzle Game #1 | 0 | - | 4.86 | 85,964 |
| Countries in a JetPunk Fish of the World Map | 0 | - | 4.99 | 60,024 |
| Countries in a Blue JetPunk Fish of the World Map | 0 | - | 4.92 | 71,620 |
| Divided Country Shape Puzzle #1 | 0 | - | 4.87 | 53,086 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,636 |
| Africa Flags Map Quiz | 0 | - | 4.95 | 36,147 |
| Random African Flag to Country | 0 | - | 4.88 | 74,510 |
| Eastern Africa Map Quiz | 0 | - | 4.98 | 78,492 |
| South America Flags Map Quiz | 0 | - | 4.95 | 87,185 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,133 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,265 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,929 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,325 |
| Presidential Middle Names | 0 | - | 4.41 | 59,930 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,981 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,207 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,857 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,281 |
| The American Revolution | 0 | - | 4.52 | 54,147 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,294 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,827 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,409 |
| Ancient Greek Words | 0 | - | 4.93 | 111,096 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,069 |
| Italy by Picture | 0 | - | 4.41 | 30,830 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,377 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,601 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,943 |
| Animals in British History | 0 | - | 4.44 | 25,933 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 855,138 |
| Scotland A-Z | 0 | - | 4.73 | 41,148 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,381 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,862 |
| Flags of Countries that Border China | 0 | - | 4.94 | 98,835 |
| Flags of WW1 | 0 | - | 4.60 | 38,159 |
| Flags of the Countries that Start with C | 0 | - | 4.89 | 129,662 |
| Flags of the Countries that Start with I | 0 | - | 4.94 | 153,346 |
| Flags of the Countries that Start with B | 0 | - | 4.96 | 42,216 |
| Flags of the Countries that Start with A | 0 | - | 4.94 | 126,940 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,195 |
| Random Sequential African Countries on a Map | 0 | - | 5.00 | 127,139 |
| Random African Countries on a Map | 0 | - | 4.99 | 294,666 |
| Africa Map with Random Merged Countries | 0 | - | 4.95 | 73,029 |
| Random American Countries on a Map | 0 | - | 4.96 | 99,019 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,630 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,198 |
| First Ladies of the United States | 0 | - | 4.28 | 85,374 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,874 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,160 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,669 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,168 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,084 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,677 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,884 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,523 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,242 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,734 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,815 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,766 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,850 |
| Europe Flag Map - Find the Errors | 0 | - | 4.25 | 61,468 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,101 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,444 |
| Mythology A-Z | 0 | - | 4.31 | 37,103 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,848 |
| History of Italy | 0 | - | 4.55 | 31,897 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,244 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,138 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,025 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,566 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,092 |
| Arthurian Legend | 0 | - | 4.33 | 25,075 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,715 |
| Satellite Images - The United Kingdom | 0 | - | 4.40 | 27,964 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,172 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 386,812 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,462 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,329 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,803 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,665 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,826 |
| British Football Team Logos | 0 | - | 4.04 | 68,030 |
| Pope Facts | 0 | - | 4.39 | 31,133 |
| Random Asian Countries on a Map | 0 | - | 4.90 | 169,349 |
| Random Sequential Asian Countries on a Map | 0 | - | 4.99 | 118,600 |
| The Iraq War | 0 | - | 4.47 | 15,596 |
| The Vietnam War | 0 | - | 4.43 | 35,409 |
| Communist Countries in History | 0 | - | 4.63 | 493,896 |
| History of India | 0 | - | 4.61 | 21,349 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,310 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,615 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,391 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,630 |
| History of South Africa | 0 | - | 4.60 | 17,637 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,560 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Australia A-Z | 0 | - | 4.54 | 49,874 |
| History of Mexico | 0 | - | 4.58 | 15,261 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,411 |
