| Prime Ministers of the UK | 0 | - | 4.95 | 378,528 |
| Biggest Trading Partners - Spain | 0 | - | 4.93 | 50,072 |
| Biggest Trading Partners - UK | 0 | - | 4.87 | 56,529 |
| Canadian Prime Ministers Quiz | 0 | - | 4.60 | 48,781 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 61,901 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,729 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 177,525 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 86,863 |
| Prime Ministers of Australia | 0 | - | 4.47 | 27,552 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 134,164 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,379 |
| Country by Photo of its Leader | 0 | - | 4.79 | 114,531 |
| Monty Python Quotes | 0 | - | 4.89 | 40,269 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,142,496 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 580,629 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,072 |
| Name the Popes Quiz | 0 | - | 4.42 | 100,870 |
| Countries of the Popes | 0 | - | 4.79 | 79,481 |
| Name that Greek Letter | 0 | - | 4.94 | 294,581 |
| National Founders | 0 | - | 4.38 | 79,151 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 81,561 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 175,788 |
| Paramount Leaders of China | 0 | - | 4.31 | 9,872 |
| U.S. Presidents by Picture | 0 | - | 4.86 | 392,432 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 130,301 |
| Ancient Greek Words | 0 | - | 4.90 | 96,448 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,186 |
| UK Cities Map Quiz | 0 | - | 4.94 | 431,575 |
| Pope Facts | 0 | - | 4.44 | 17,625 |
| The Dictator Files: Chairman Mao | 0 | - | 4.31 | 18,300 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 351,398 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 165,610 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.91 | 48,125 |
| Countries of Europe After World War II | 0 | - | 4.98 | 169,469 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 138,160 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,996 |
| Biggest Spanish Empire Countries | 0 | - | 4.90 | 92,404 |
| UK Immigration by Country | 0 | - | 4.95 | 124,385 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 117,492 |
| Counties of England Map Quiz | 0 | - | 4.97 | 285,568 |
| British Monopoly Board - Map Quiz | 0 | - | 4.45 | 19,087 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 83,880 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 101,024 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,035 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,633 |
| African Countries with the Most Christians | 0 | - | 4.92 | 66,913 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,957 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 220,819 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 67,345 |
| Most Forested European Countries | 0 | - | 4.82 | 67,754 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,765 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,969 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,403 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 74,035 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.33 | 39,518 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,155 |
| Political Movements by Country | 0 | - | 4.47 | 68,257 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 76,316 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 35,119 |
| Countries that Visit the UK the Most | 0 | - | 4.84 | 61,866 |
| English Monarchs Quiz | 0 | - | 4.91 | 443,891 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 53,179 |
| 2025 Football League Teams | 0 | - | 4.93 | 342,012 |
| Top 10 Richest Countries in Asia | 0 | - | 4.86 | 77,970 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 67,221 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 75,718 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,235 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 157,147 |
| Every European Country Shape | 0 | - | 4.95 | 170,335 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,170 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,531 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 75,965 |
| Ireland Country Quiz | 0 | - | 4.72 | 124,698 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,732 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,695 |
| Roman History Vocabulary | 0 | - | 4.43 | 54,924 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,371 |
| Roman Emperors | 0 | - | 4.95 | 95,034 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,010 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,242 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,700 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 54,120 |
| Middle Earth Geography | 0 | - | 4.56 | 37,131 |
| Lord of the Rings Trivia | 0 | - | 4.51 | 75,029 |
| Members of the Fellowship of the Ring | 0 | - | 4.79 | 43,050 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 221,140 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,121 |
| Top 4 in English Football, 1888–2024 | 0 | - | 4.95 | 105,959 |
| Scotland A-Z | 0 | - | 4.75 | 37,590 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,479 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 69,641 |
| Countries with the Most Hindus | 0 | - | 4.92 | 112,562 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,322 |
| Biggest Trading Partners - Australia | 0 | - | 4.88 | 42,595 |
| U.S. Vice Presidents | 0 | - | 4.42 | 118,401 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 96,329 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 80,671 |
| U.S. Presidential Trivia #2 | 0 | - | 4.51 | 39,337 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 79,578 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,455 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,500 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 115,139 |
| Random European Flag to Country | 0 | - | 4.91 | 160,518 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 141,634 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 33,831 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 87,727 |
| Biggest Cities in France - Extreme | 0 | - | 4.88 | 43,150 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,953 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,304 |
| Germany A-Z | 0 | - | 4.70 | 49,544 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.89 | 75,005 |
| Holy Roman Empire Countries | 0 | - | 4.58 | 41,928 |
| The Trojan War | 0 | - | 4.81 | 35,732 |
| Famous Ancient Romans | 0 | - | 4.72 | 74,026 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.57 | 46,068 |
| Italy A-Z | 0 | - | 4.43 | 40,420 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 397,070 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,263 |
| Largest Nordic Cities on a Map | 0 | - | 4.73 | 22,939 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 65,004 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 98,994 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,225 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 74,191 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 346,441 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,578 |
| 2025 English Premier League Teams | 0 | - | 4.85 | 733,250 |
| Countries Closest to Israel | 0 | - | 4.87 | 98,232 |
| The Vietnam War | 0 | - | 4.41 | 32,614 |
| Colonies of Africa with a Map | 0 | - | 4.80 | 48,009 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 35,172 |
| U.S. Bill of Rights | 0 | - | 4.56 | 30,991 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.31 | 10,286 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.44 | 276,984 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 60,245 |
| The American Revolution | 0 | - | 4.55 | 51,511 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 193,473 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 454,628 |
| Random European Countries on a Map | 0 | - | 4.98 | 258,397 |
| Flags of Countries That Border France | 0 | - | 4.90 | 111,839 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 86,580 |
| All Countries that Once Bordered Germany | 0 | - | 4.35 | 69,668 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,622 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 99,272 |
| Roman History by Picture | 0 | - | 4.44 | 24,442 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 110,552 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.25 | 70,835 |
| The Vikings! | 0 | - | 4.44 | 27,038 |
| The Portuguese Empire | 0 | - | 4.54 | 11,301 |
| Arthurian Legend | 0 | - | 4.35 | 24,234 |
| Biggest British Empire Countries | 0 | - | 4.67 | 78,663 |
| UK Rivers Map Quiz | 0 | - | 4.60 | 27,767 |
| Which Country of the United Kingdom? | 0 | - | 4.59 | 34,967 |
| British Places A-Z | 0 | - | 4.32 | 75,568 |
| James Bond Movies | 0 | - | 4.64 | 142,977 |
| James Bond Trivia | 0 | - | 4.41 | 31,872 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.79 | 26,344 |
| Lord of the Rings - Races | 0 | - | 4.23 | 54,705 |
| The Ultimate LOTR Character Quiz - The Books | 0 | - | 4.60 | 17,590 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 30,565 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,545 |
| Countries the UK Declared War On | 0 | - | 4.57 | 111,640 |
| Geography of the British Empire | 0 | - | 4.50 | 36,619 |
| British History A-Z | 0 | - | 4.51 | 31,035 |
| English First Names of the Middle Ages | 0 | - | 4.40 | 45,161 |
| The Reign of Queen Elizabeth II | 0 | - | 4.38 | 33,640 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.33 | 25,113 |
| Doctor Who Actors | 0 | - | 4.59 | 16,758 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 253,503 |
| History of Iran Quiz | 0 | - | 4.63 | 15,065 |
| The Iraq War | 0 | - | 4.43 | 14,294 |
| History of China | 0 | - | 4.39 | 50,042 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 97,849 |
| History of India | 0 | - | 4.52 | 19,118 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 243,413 |
| African Countries with the Most Muslims | 0 | - | 4.76 | 80,278 |
| History of South Africa | 0 | - | 4.59 | 16,487 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.10 | 25,035 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.06 | 14,725 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.16 | 10,071 |
| Governors Who Ran For President | 0 | - | 4.46 | 18,841 |
| U.S. Presidents by Event | 0 | - | 4.57 | 28,966 |
| First Ladies of the United States | 0 | - | 4.27 | 79,537 |
| Presidential Middle Names | 0 | - | 4.36 | 55,942 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,451 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,778 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.31 | 62,928 |
| U.S. Presidents Who Died in Office | 0 | - | 4.72 | 31,087 |
| Random U.S. Vice President to President | 0 | - | 4.57 | 23,080 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.62 | 13,780 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 21,794 |
| Europe Map Quiz | 0 | - | 5.00 | 4,264,248 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,454 |
| European Countries with NO Wolves | 0 | - | 4.64 | 63,585 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,145 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 201,570 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 264,208 |
| Save Europeans by Guessing Countries | 0 | - | 4.85 | 164,133 |
| History of Russia Quiz | 0 | - | 4.48 | 29,760 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,252 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 86,921 |
