| Prime Ministers of the UK | 0 | - | 4.95 | 437,813 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 94,836 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,762 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,848 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,427 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,935 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,228 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,904 |
| Countries of the Popes | 0 | - | 4.79 | 127,862 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,973 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,414 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,690 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,427 |
| Country by Photo of its Leader | 0 | - | 4.72 | 123,851 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,119 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,316 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,730 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,154 |
| National Founders | 0 | - | 4.40 | 83,792 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,849 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,246 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,471 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,635 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,050 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,079 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,334 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,151 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,795 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,041 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,237 |
| Flags of Countries That Border Russia | 0 | - | 4.70 | 70,500 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,873 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,000 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,018 |
| Pope Facts | 0 | - | 4.39 | 31,200 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,648 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,608 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,443 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,332 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,165 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,797 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,879 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,120 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,280 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,698 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,607 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,047 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,605 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,441 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,411 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,712 |
| UK Immigration by Country | 0 | - | 4.94 | 140,672 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,451 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,020 |
| Countries "Ruled" by King Charles III | 0 | - | 4.77 | 82,709 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,739 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,006 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 130,563 |
| Political Movements by Country | 0 | - | 4.46 | 72,465 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,063 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,920 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,063 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,502 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,753 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,506 |
| Every European Country Shape | 0 | - | 4.96 | 201,290 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,442 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,390 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,777 |
| Biggest Cities in Russia | 0 | - | 4.49 | 82,302 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,090 |
| Name that Greek Letter | 0 | - | 4.93 | 323,083 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,246 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,900 |
| Name the English Monarchs | 0 | - | 4.91 | 501,471 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,833 |
| Hindu Countries | 0 | - | 4.86 | 50,004 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,423 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,522 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,246 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,590 |
| Presidential Middle Names | 0 | - | 4.41 | 60,102 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,178 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,434 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,353 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,721 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,890 |
| Random European Flag to Country | 0 | - | 4.89 | 181,950 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,156 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,920 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,475 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,901 |
| The Trojan War | 0 | - | 4.83 | 39,648 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,533 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,418 |
| Roman Emperors | 0 | - | 4.95 | 119,653 |
| Monty Python Quotes | 0 | - | 4.88 | 42,437 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,174 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,218 |
| Scotland A-Z | 0 | - | 4.73 | 41,228 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,609 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,916 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,066 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,337 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,243 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,611 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,937 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,859 |
| The American Revolution | 0 | - | 4.52 | 54,211 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,320 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,832 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,692 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,078 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 317,522 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,692 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,859 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,550 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,536 |
| Ancient Greek Words | 0 | - | 4.93 | 111,349 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,751 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,276 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,612 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,164 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,119 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,794 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,688 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 857,480 |
| The Vietnam War | 0 | - | 4.44 | 35,480 |
| History of India | 0 | - | 4.61 | 21,395 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,864 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,794 |
| History of South Africa | 0 | - | 4.60 | 17,660 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,135 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,504 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,853 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,048 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,241 |
| First Ladies of the United States | 0 | - | 4.28 | 85,534 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,926 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,200 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,925 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,157 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,934 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,795 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,629 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,375 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,296 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,916 |
| Most Forested European Countries | 0 | - | 4.80 | 75,237 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,608 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,378 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,922 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,224 |
| Russia A-Z | 0 | - | 4.46 | 27,221 |
| History of Austria | 0 | - | 4.70 | 17,834 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,112 |
| Geography of the French Empire | 0 | - | 4.45 | 27,025 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| History of France | 0 | - | 4.59 | 56,826 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,223 |
| Mythology A-Z | 0 | - | 4.31 | 37,166 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,430 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,559 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 102,524 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| The Portuguese Empire | 0 | - | 4.58 | 12,047 |
| Arthurian Legend | 0 | - | 4.33 | 25,094 |
| Biggest British Empire Countries | 0 | - | 4.74 | 99,754 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,264 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,190 |
| Name the James Bond Movies | 0 | - | 4.56 | 158,324 |
| James Bond Trivia | 0 | - | 4.46 | 39,245 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 387,495 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,606 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,307 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,298 |
| Geography of the British Empire | 0 | - | 4.48 | 39,631 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.35 | 61,966 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,671 |
| History of Iran | 0 | - | 4.66 | 16,340 |
| The Iraq War | 0 | - | 4.47 | 15,637 |
| History of China | 0 | - | 4.37 | 57,045 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,170 |
| Communist Countries in History | 0 | - | 4.63 | 494,906 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,387 |
| Countries of Africa | 0 | - | 5.00 | 2,529,983 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,589 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,598 |
| African East Coast | 0 | - | 4.96 | 95,825 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,603 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,559 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,451 |
| Australian Capitals | 0 | - | 4.92 | 62,694 |
| Australia A-Z | 0 | - | 4.54 | 49,943 |
| Australia Map Quiz | 0 | - | 4.95 | 343,828 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| United States Map Quiz | 0 | - | 4.98 | 4,153,889 |
