| Prime Ministers of the UK | 0 | - | 4.95 | 439,025 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,943 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,536 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,422 |
| Soviet Leaders 1917–1991 | 0 | - | 4.44 | 95,017 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,626 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,698,861 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,738 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,818 |
| Country by Photo of its Leader | 0 | - | 4.72 | 124,073 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,386 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,810 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,475 |
| Biggest Trading Partners - Spain | 0 | - | 4.92 | 53,784 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.93 | 80,353 |
| Name the Popes Quiz | 0 | - | 4.47 | 138,212 |
| Countries of the Popes | 0 | - | 4.79 | 128,115 |
| National Founders | 0 | - | 4.40 | 83,842 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 426,501 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,492 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,513 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,874 |
| Paramount Leaders of China | 0 | - | 4.36 | 11,068 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,598 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,222 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,012 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,138 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,567 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,684 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,465 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,812 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,305 |
| Countries of Europe After World War II | 0 | - | 4.99 | 188,380 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,574 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,355 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 81,896 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,685 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,017 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,893 |
| Countries That Border Russia | 0 | - | 4.98 | 461,754 |
| Countries of the Soviet Union | 0 | - | 4.98 | 194,602 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,748 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,499 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,455 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,648 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,817 |
| Political Movements by Country | 0 | - | 4.46 | 72,531 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,870 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,608 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,277 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,610 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,983 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,073 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,879 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,811 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,801 |
| Every European Country Shape | 0 | - | 4.96 | 201,708 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,522 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,494 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,061 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,159 |
| Countries that Border Poland | 0 | - | 4.99 | 172,281 |
| Russia Country Quiz | 0 | - | 4.85 | 114,495 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,863 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,401 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,333 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,995 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,283 |
| UK Immigration by Country | 0 | - | 4.94 | 140,909 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,808 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,125 |
| Name the English Monarchs | 0 | - | 4.91 | 502,695 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,236 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,479 |
| Hindu Countries | 0 | - | 4.86 | 50,155 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,569 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,533 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,048 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,211 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,794 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,024 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,782 |
| The Trojan War | 0 | - | 4.83 | 39,729 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,461 |
| Name that Greek Letter | 0 | - | 4.93 | 323,464 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,854 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,536 |
| Roman Emperors | 0 | - | 4.95 | 120,056 |
| Monty Python Quotes | 0 | - | 4.88 | 42,465 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,417 |
| Pope Facts | 0 | - | 4.39 | 31,248 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,024 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,446 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,320 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 108,733 |
| U.S. Presidents by Event | 0 | - | 4.58 | 34,495 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 93,809 |
| Presidential Middle Names | 0 | - | 4.41 | 60,257 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 53,346 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 94,598 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,992 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,434 |
| The American Revolution | 0 | - | 4.52 | 54,255 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,577 |
| Random European Flag to Country | 0 | - | 4.89 | 182,469 |
| History of Russia Quiz | 0 | - | 4.47 | 31,918 |
| Russian History A-Z | 0 | - | 4.38 | 31,718 |
| Flags of Countries That Border France | 0 | - | 4.88 | 123,019 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,957 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 97,148 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,861 |
| Ancient Greek Words | 0 | - | 4.93 | 111,611 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,997 |
| History of Italy | 0 | - | 4.55 | 31,975 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,882 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,661 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,237 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,270 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,867 |
| Animals in British History | 0 | - | 4.43 | 26,006 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 859,575 |
| Scotland A-Z | 0 | - | 4.73 | 41,282 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,749 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,949 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,173 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,219 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 304,965 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 70,013 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,805 |
| Category Elimination - U.S. States #2 | 0 | - | 4.83 | 134,209 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,798 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,236 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,990 |
| Random European Countries on a Map | 0 | - | 4.97 | 283,546 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 318,606 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,471 |
| Arms Exports - Russia | 0 | - | 4.49 | 25,137 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,203 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,618 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 125,900 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,137 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,217 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 388,099 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,666 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.92 | 37,862 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,273 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,745 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 279,157 |
| The Vietnam War | 0 | - | 4.44 | 35,529 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,257 |
| Communist Countries in History | 0 | - | 4.63 | 495,741 |
| History of India | 0 | - | 4.62 | 21,427 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,447 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,986 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,905 |
| History of South Africa | 0 | - | 4.60 | 17,689 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,382 |
| Australian Capitals | 0 | - | 4.92 | 62,722 |
| History of Mexico | 0 | - | 4.58 | 15,309 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,544 |
| American Political Words | 0 | - | 4.39 | 23,423 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,159 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,522 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,863 |
| U.S. Vice Presidents | 0 | - | 4.39 | 136,273 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,259 |
| First Ladies of the United States | 0 | - | 4.28 | 85,642 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,955 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,228 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 77,097 |
| U.S. President Scramble | 0 | - | 4.40 | 116,778 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 16,197 |
| Add a Letter - Make a U.S. President | 0 | - | 4.57 | 23,965 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,187 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,892 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,828 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,135 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,654 |
| Official European Union Languages | 0 | - | 4.97 | 238,518 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,863 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,231 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,347 |
| Most Forested European Countries | 0 | - | 4.80 | 75,333 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,630 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,436 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 217,215 |
| Albania Country Quiz | 0 | - | 4.54 | 39,008 |
| Russia by Picture | 0 | - | 4.40 | 20,402 |
| Serbia Country Quiz | 0 | - | 4.44 | 35,041 |
| History of Austria | 0 | - | 4.70 | 17,863 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,166 |
| Geography of the French Empire | 0 | - | 4.45 | 27,060 |
| The French Revolution | 0 | - | 4.47 | 23,935 |
| History of France | 0 | - | 4.59 | 56,981 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,306 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 144,632 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,997 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Mythology A-Z | 0 | - | 4.31 | 37,221 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,978 |
