| Prime Ministers of the UK | 0 | - | 4.95 | 436,869 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,804 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,308 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,185 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,709 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,937 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,677,000 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,853 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,451 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,671 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,913 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,725 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,124 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,647 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 79,933 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,632 |
| Countries of the Popes | 0 | - | 4.79 | 127,652 |
| National Founders | 0 | - | 4.40 | 83,746 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,176 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,990 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,426 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,405 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,033 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,505 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,444 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,785 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,861 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,491 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,630 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,908 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,823 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,973 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,731 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,958 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,608 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,920 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,032 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,534 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,430 |
| Countries That Border Russia | 0 | - | 4.98 | 460,496 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,254 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,484 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,405 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,387 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,720 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,660 |
| Political Movements by Country | 0 | - | 4.46 | 72,404 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,385 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,221 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,566 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,825 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,869 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,006 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,709 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,722 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,944 |
| Every European Country Shape | 0 | - | 4.96 | 200,919 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,375 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,310 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,556 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,941 |
| Countries that Border Poland | 0 | - | 4.99 | 171,837 |
| Russia Country Quiz | 0 | - | 4.85 | 114,092 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,670 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,104 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,163 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,495 |
| UK Immigration by Country | 0 | - | 4.94 | 140,436 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,048 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,703 |
| Name the English Monarchs | 0 | - | 4.92 | 500,394 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,751 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,938 |
| Hindu Countries | 0 | - | 4.86 | 49,870 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,271 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,459 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,434 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,592 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,289 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,810 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,254 |
| The Trojan War | 0 | - | 4.83 | 39,586 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,940 |
| Name that Greek Letter | 0 | - | 4.93 | 322,659 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,244 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,316 |
| Roman Emperors | 0 | - | 4.95 | 119,364 |
| Monty Python Quotes | 0 | - | 4.88 | 42,384 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,938 |
| Pope Facts | 0 | - | 4.39 | 31,142 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,692 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,237 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,155 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,310 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,994 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,375 |
| Presidential Middle Names | 0 | - | 4.41 | 59,971 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,019 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,250 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,871 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,293 |
| The American Revolution | 0 | - | 4.52 | 54,161 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,990 |
| Random European Flag to Country | 0 | - | 4.89 | 181,635 |
| History of Russia Quiz | 0 | - | 4.49 | 31,855 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,505 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,844 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,695 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,651 |
| Ancient Greek Words | 0 | - | 4.93 | 111,158 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,173 |
| History of Italy | 0 | - | 4.55 | 31,910 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,642 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,578 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,107 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,981 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,738 |
| Animals in British History | 0 | - | 4.44 | 25,942 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 855,626 |
| Scotland A-Z | 0 | - | 4.73 | 41,169 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,413 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,886 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,887 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,481 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,260 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,714 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,685 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,384 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,964 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,867 |
| Random European Countries on a Map | 0 | - | 4.97 | 282,748 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 316,903 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,237 |
| Arms Exports - Russia | 0 | - | 4.48 | 25,099 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,247 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,460 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,316 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,333 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,174 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 386,961 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,476 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,373 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,164 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,674 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,273 |
| The Vietnam War | 0 | - | 4.43 | 35,422 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,070 |
| Communist Countries in History | 0 | - | 4.63 | 494,105 |
| History of India | 0 | - | 4.61 | 21,360 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,326 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,423 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,653 |
| History of South Africa | 0 | - | 4.60 | 17,643 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,936 |
| Australian Capitals | 0 | - | 4.92 | 62,668 |
| History of Mexico | 0 | - | 4.58 | 15,268 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,332 |
| American Political Words | 0 | - | 4.39 | 23,386 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,124 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,494 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,835 |
| U.S. Vice Presidents | 0 | - | 4.39 | 135,719 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,207 |
| First Ladies of the United States | 0 | - | 4.28 | 85,400 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,883 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,166 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,718 |
| U.S. President Scramble | 0 | - | 4.40 | 116,499 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,101 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,893 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,099 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,792 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,744 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,881 |
| Biggest European Cities by Letter | 0 | - | 4.54 | 126,439 |
| Official European Union Languages | 0 | - | 4.97 | 237,755 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,379 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,723 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,253 |
| Most Forested European Countries | 0 | - | 4.80 | 75,140 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,580 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,307 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,707 |
| Albania Country Quiz | 0 | - | 4.54 | 38,847 |
| Russia by Picture | 0 | - | 4.40 | 20,335 |
| Russian History A-Z | 0 | - | 4.38 | 31,446 |
| Serbia Country Quiz | 0 | - | 4.44 | 34,919 |
| History of Austria | 0 | - | 4.70 | 17,810 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,050 |
| Geography of the French Empire | 0 | - | 4.45 | 27,002 |
| The French Revolution | 0 | - | 4.46 | 23,872 |
| History of France | 0 | - | 4.59 | 56,658 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,440 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,133 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,935 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,880 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,846 |
| Mythology A-Z | 0 | - | 4.31 | 37,116 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,958 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,922 |
