| Prime Ministers of the UK | 0 | - | 4.96 | 434,622 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,677 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,038 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,253 |
| Soviet Leaders 1917–1991 | 0 | - | 4.43 | 94,428 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,270 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,654,140 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,146 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,107 |
| Country by Photo of its Leader | 0 | - | 4.74 | 123,254 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,485 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,635 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,770 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,505 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.92 | 79,508 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,151 |
| Countries of the Popes | 0 | - | 4.79 | 127,210 |
| National Founders | 0 | - | 4.40 | 83,648 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 423,714 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 160,467 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,334 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,911 |
| Paramount Leaders of China | 0 | - | 4.36 | 10,998 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 379,542 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,418 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,615 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,120 |
| The Dictator Files: Chairman Mao | 0 | - | 4.28 | 20,574 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,322 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 189,842 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,672 |
| Countries of Europe After World War II | 0 | - | 4.99 | 186,739 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 155,349 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,942 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,415 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,406 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,109 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,018 |
| Countries That Border Russia | 0 | - | 4.98 | 458,901 |
| Countries of the Soviet Union | 0 | - | 4.98 | 193,831 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 80,235 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.37 | 48,288 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,313 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,079 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,540 |
| Political Movements by Country | 0 | - | 4.46 | 72,259 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,891 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,860 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,175 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,361 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,736 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,881 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,526 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,670 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,251 |
| Every European Country Shape | 0 | - | 4.96 | 200,154 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,196 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,144 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,966 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,664 |
| Countries that Border Poland | 0 | - | 4.99 | 171,345 |
| Russia Country Quiz | 0 | - | 4.85 | 113,627 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,457 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,745 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,948 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,847 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,491 |
| UK Immigration by Country | 0 | - | 4.94 | 139,627 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,133 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,260 |
| Name the English Monarchs | 0 | - | 4.92 | 497,862 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,254 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,241 |
| Hindu Countries | 0 | - | 4.85 | 49,577 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 60,954 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,376 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,711 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,934 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,886 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,545 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,612 |
| The Trojan War | 0 | - | 4.83 | 39,425 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,863 |
| Name that Greek Letter | 0 | - | 4.94 | 321,650 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,532 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,044 |
| Roman Emperors | 0 | - | 4.95 | 118,482 |
| Monty Python Quotes | 0 | - | 4.88 | 42,323 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,271 |
| Pope Facts | 0 | - | 4.39 | 31,039 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,344 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 53,943 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,975 |
| U.S. Vice Presidents | 0 | - | 4.41 | 134,931 |
| U.S. Presidential Trivia #1 | 0 | - | 4.45 | 107,947 |
| U.S. Presidents by Event | 0 | - | 4.58 | 33,493 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.61 | 92,999 |
| Presidential Middle Names | 0 | - | 4.41 | 59,701 |
| U.S. Presidential Trivia #2 | 0 | - | 4.49 | 52,734 |
| Assassinated U.S. Presidents | 0 | - | 4.63 | 93,818 |
| U.S. Presidents Who Died in Office | 0 | - | 4.77 | 34,745 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 38,169 |
| The American Revolution | 0 | - | 4.52 | 54,054 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,333 |
| Random European Flag to Country | 0 | - | 4.89 | 180,884 |
| History of Russia Quiz | 0 | - | 4.49 | 31,791 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,142 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,676 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,365 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,092 |
| Ancient Greek Words | 0 | - | 4.92 | 110,687 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,280 |
| History of Italy | 0 | - | 4.55 | 31,814 |
| Biggest Roman Empire Countries | 0 | - | 4.87 | 101,376 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,481 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,980 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,674 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,387 |
| Animals in British History | 0 | - | 4.44 | 25,869 |
| 2025–2026 English Premier League Teams | 0 | - | 4.86 | 851,387 |
| Scotland A-Z | 0 | - | 4.73 | 41,042 |
| Prime Ministers of Israel | 0 | - | 3.97 | 17,820 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,680 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,525 |
| US Presidents - One Minute Sprint | 0 | - | 4.41 | 303,362 |
| Name a Valid U.S. President #2 | 0 | - | 4.54 | 69,412 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,538 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,499 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,135 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,744 |
| Random European Countries on a Map | 0 | - | 4.97 | 281,970 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,465 |
| Arms Exports - Russia | 0 | - | 4.48 | 24,763 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,460 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.90 | 105,305 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 124,725 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,530 |
| British Monopoly Board - Map Quiz | 0 | - | 4.47 | 20,146 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,707 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,394 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.91 | 37,112 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.38 | 29,034 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 82,595 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,097 |
| The Vietnam War | 0 | - | 4.43 | 35,294 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 103,860 |
| Communist Countries in History | 0 | - | 4.63 | 492,501 |
| History of India | 0 | - | 4.61 | 21,283 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.68 | 55,174 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,248 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,409 |
| History of South Africa | 0 | - | 4.60 | 17,602 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,279 |
| Australian Capitals | 0 | - | 4.92 | 62,593 |
| History of Mexico | 0 | - | 4.58 | 15,230 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,770 |
| American Political Words | 0 | - | 4.39 | 23,340 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,073 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,461 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,807 |
| U.S. Governors Who Ran For President | 0 | - | 4.47 | 20,166 |
| First Ladies of the United States | 0 | - | 4.28 | 85,243 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.43 | 23,814 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 26,111 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 76,277 |
| U.S. President Scramble | 0 | - | 4.40 | 116,197 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.64 | 15,999 |
| Add a Letter - Make a U.S. President | 0 | - | 4.61 | 23,832 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.48 | 23,022 |
| People in Pictures with Barack Obama | 0 | - | 4.10 | 47,694 |
| Shortest U.S. Presidential Terms | 0 | - | 4.75 | 12,686 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,578 |
| Biggest European Cities by Letter | 0 | - | 4.55 | 126,225 |
| Official European Union Languages | 0 | - | 4.97 | 236,520 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,700 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,194 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,152 |
| Most Forested European Countries | 0 | - | 4.80 | 74,907 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,534 |
| European Cities with the Biggest Economies | 0 | - | 4.62 | 38,184 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 216,143 |
| Europe Map with Random Merged Countries | 0 | - | 4.97 | 315,724 |
| Albania Country Quiz | 0 | - | 4.54 | 38,648 |
| Russia by Picture | 0 | - | 4.40 | 20,250 |
| Russian History A-Z | 0 | - | 4.38 | 30,812 |
| Serbia Country Quiz | 0 | - | 4.44 | 34,762 |
| History of Austria | 0 | - | 4.70 | 17,746 |
| Biggest French Empire Countries | 0 | - | 4.49 | 64,888 |
| Geography of the French Empire | 0 | - | 4.48 | 26,933 |
| The French Revolution | 0 | - | 4.46 | 23,784 |
| History of France | 0 | - | 4.59 | 56,039 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,383 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,931 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,171 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,771 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,768 |
| Mythology A-Z | 0 | - | 4.31 | 36,996 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,936 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 71,732 |
