| Prime Ministers of the UK | 0 | - | 4.95 | 384,372 |
| Countries of the Popes | 0 | - | 4.85 | 111,826 |
| Canadian Prime Ministers Quiz | 0 | - | 4.64 | 50,171 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 101,298 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,554 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 87,852 |
| Prime Ministers of Australia | 0 | - | 4.48 | 28,196 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,200,413 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 136,561 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 65,503 |
| Country by Photo of its Leader | 0 | - | 4.78 | 116,042 |
| Countries that Bordered the USSR | 0 | - | 4.94 | 153,895 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 50,621 |
| Biggest Trading Partners – United Kingdom | 0 | - | 4.90 | 62,425 |
| Name the Popes Quiz | 0 | - | 4.46 | 122,985 |
| Biggest Trading Partners - Germany | 0 | - | 4.98 | 63,266 |
| National Founders | 0 | - | 4.39 | 79,938 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 178,298 |
| Paramount Leaders of China | 0 | - | 4.31 | 10,001 |
| U.S. Presidents by Picture | 0 | - | 4.85 | 396,635 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 149,011 |
| Biggest Trading Partners - Russia | 0 | - | 4.56 | 34,191 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,212 |
| UK Cities Map Quiz | 0 | - | 4.94 | 436,122 |
| The Dictator Files: Chairman Mao | 0 | - | 4.32 | 18,638 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 355,164 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.92 | 50,784 |
| Counties of England Map Quiz | 0 | - | 4.97 | 288,556 |
| Pope Facts | 0 | - | 4.41 | 28,121 |
| Prime Ministers of Israel | 0 | - | 4.10 | 16,256 |
| U.S. Citizenship Test Questions | 0 | - | 4.86 | 223,178 |
| Name a Valid U.S. President #1 | 0 | - | 4.93 | 168,853 |
| Countries of Europe After World War II | 0 | - | 4.98 | 172,171 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 140,748 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 134,947 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 59,598 |
| Countries of the Soviet Union | 0 | - | 4.98 | 185,593 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 74,929 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.32 | 40,065 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,842 |
| Political Movements by Country | 0 | - | 4.46 | 68,839 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 94,543 |
| UK Immigration by Country | 0 | - | 4.94 | 126,291 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 120,255 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 63,473 |
| English Monarchs Quiz | 0 | - | 4.91 | 450,749 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 85,432 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 82,399 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 102,660 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 94,511 |
| African Countries with the Most Christians | 0 | - | 4.92 | 67,959 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,407 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,570 |
| U.S. Federal Agency Acronyms | 0 | - | 4.51 | 76,352 |
| All U.S. Supreme Court Justices | 0 | - | 4.49 | 27,389 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 67,913 |
| Deadliest U.S. Wars | 0 | - | 4.83 | 159,160 |
| Every European Country Shape | 0 | - | 4.95 | 172,500 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,775 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,189 |
| Most Forested European Countries | 0 | - | 4.82 | 68,803 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 77,479 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 62,062 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,462 |
| Countries With the Most Russian Speakers | 0 | - | 4.95 | 57,017 |
| Countries Italy Declared War On | 0 | - | 4.79 | 40,213 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.81 | 10,113 |
| Monty Python Quotes | 0 | - | 4.89 | 40,529 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 223,354 |
| Biggest Trading Partners – Australia | 0 | - | 4.89 | 47,733 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 72,139 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 116,713 |
| Biggest Cities in Poland | 0 | - | 4.57 | 48,608 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 87,937 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 89,864 |
| The Trojan War | 0 | - | 4.81 | 36,185 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 588,544 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 86,443 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,088 |
| Roman Emperors | 0 | - | 4.95 | 96,826 |
| Biggest Roman Empire Countries | 0 | - | 4.88 | 82,553 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,567 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,014 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 100,532 |
| Invasions of Great Britain | 0 | - | 4.49 | 55,878 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 351,139 |
| 2025–2026 English Premier League Teams | 0 | - | 4.85 | 755,403 |
| Scotland A-Z | 0 | - | 4.75 | 37,990 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 45,473 |
| Countries Closest to Israel | 0 | - | 4.86 | 99,425 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,579 |
| Countries with the Most Hindus | 0 | - | 4.91 | 114,052 |
| Colonies of Africa with a Map | 0 | - | 4.79 | 48,767 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 37,873 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 35,908 |
| U.S. Bill of Rights | 0 | - | 4.53 | 31,152 |
| American Political Words | 0 | - | 4.41 | 22,391 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.33 | 10,405 |
| U.S. Vice Presidents | 0 | - | 4.43 | 120,816 |
| U.S. Presidential Trivia #1 | 0 | - | 4.51 | 97,768 |
| Losing U.S. Presidential Candidates in History | 0 | - | 4.57 | 82,462 |
| U.S. Presidential Trivia #2 | 0 | - | 4.52 | 40,181 |
| Assassinated U.S. Presidents | 0 | - | 4.54 | 80,571 |
| Ten Least Guessed U.S. Presidents | 0 | - | 4.45 | 33,674 |
| The American Revolution | 0 | - | 4.51 | 51,893 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 488,706 |
| Random European Flag to Country | 0 | - | 4.89 | 162,957 |
| Flags of Countries That Border France | 0 | - | 4.90 | 113,259 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,289 |
| Flags of Countries that Border Germany | 0 | - | 4.85 | 87,870 |
| Olympian Gods Quiz | 0 | - | 4.96 | 459,446 |
| Name that Greek Letter | 0 | - | 4.94 | 297,311 |
| Ancient Greek Words | 0 | - | 4.90 | 98,444 |
| Modern-Day Countries of the Roman Empire on a Map | 0 | - | 4.99 | 112,664 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 402,279 |
| British Monopoly Board - Map Quiz | 0 | - | 4.46 | 19,294 |
| People in Pictures with Queen Elizabeth II | 0 | - | 4.34 | 25,715 |
| Countries "Ruled" by King Charles III | 0 | - | 4.78 | 80,871 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 257,279 |
| The Vietnam War | 0 | - | 4.41 | 33,031 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 98,966 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 247,080 |
| US Presidents - 1 Minute Sprint | 0 | - | 4.43 | 281,138 |
| Name a Valid U.S. President #2 | 0 | - | 4.52 | 61,841 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 196,420 |
| Europe Map Quiz | 0 | - | 5.00 | 4,325,820 |
| European Secessionist Movements on a Map | 0 | - | 4.51 | 31,676 |
| Random European Countries on a Map | 0 | - | 4.98 | 261,568 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 170,857 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.91 | 100,309 |
| Communist Countries in History | 0 | - | 4.65 | 458,476 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 67,083 |
| Byzantine History | 0 | - | 4.87 | 26,394 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.26 | 72,912 |
| History of The Netherlands | 0 | - | 4.43 | 15,864 |
| The Vikings! | 0 | - | 4.45 | 27,218 |
| The Portuguese Empire | 0 | - | 4.54 | 11,375 |
| Arthurian Legend | 0 | - | 4.35 | 24,330 |
| Biggest British Empire Countries | 0 | - | 4.70 | 80,043 |
| Which Country of the United Kingdom? | 0 | - | 4.60 | 35,573 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.41 | 61,559 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 61,470 |
| James Bond Movies | 0 | - | 4.70 | 144,665 |
| James Bond Trivia | 0 | - | 4.41 | 32,095 |
| Tolkien's Middle Earth Map Quiz | 0 | - | 4.90 | 31,255 |
| Wives of King Henry VIII | 0 | - | 4.53 | 45,826 |
| Countries the UK Declared War On | 0 | - | 4.58 | 113,112 |
| Geography of the British Empire | 0 | - | 4.51 | 37,238 |
| Top 100 UK Baby Girls' Names in 1850 | 0 | - | 4.32 | 54,415 |
| Medieval English History | 0 | - | 4.52 | 41,024 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.56 | 13,845 |
| Scotland Trivia | 0 | - | 4.57 | 55,150 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,351,263 |
| Asia Map Quiz | 0 | - | 4.99 | 793,921 |
| History of Iran Quiz | 0 | - | 4.63 | 15,182 |
| The Iraq War | 0 | - | 4.45 | 14,448 |
| Ottoman Empire Quiz | 0 | - | 4.42 | 15,800 |
| Chinese Inventions | 0 | - | 4.26 | 32,662 |
| History of China | 0 | - | 4.40 | 50,897 |
| History of India | 0 | - | 4.52 | 19,390 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.57 | 52,028 |
| Africa Map Quiz | 0 | - | 5.00 | 1,951,530 |
| African Countries with the Most Muslims | 0 | - | 4.76 | 81,470 |
| History of South Africa | 0 | - | 4.59 | 16,642 |
| Oceania Map Quiz | 0 | - | 4.98 | 572,500 |
| Australian Capitals | 0 | - | 4.92 | 61,004 |
| History of Mexico | 0 | - | 4.55 | 13,994 |
| United States Map Quiz | 0 | - | 4.98 | 3,920,625 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.11 | 25,155 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.08 | 14,808 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.17 | 10,143 |
| Governors Who Ran For President | 0 | - | 4.47 | 18,949 |
| U.S. Presidents by Event | 0 | - | 4.58 | 29,276 |
| U.S. Presidential Running Mates | 0 | - | 4.41 | 25,952 |
| First Ladies of the United States | 0 | - | 4.27 | 80,300 |
| Presidential Middle Names | 0 | - | 4.37 | 56,348 |
| The Franklin D. Roosevelt Presidency | 0 | - | 4.41 | 22,591 |
| The Abraham Lincoln Presidency | 0 | - | 4.52 | 24,921 |
| U.S. Presidents in Order - Whammies | 0 | - | 4.32 | 65,471 |
| U.S. Presidents Who Died in Office | 0 | - | 4.75 | 31,375 |
| Random U.S. Vice President to President | 0 | - | 4.55 | 27,799 |
| U.S. President Scramble | 0 | - | 4.37 | 91,519 |
| U.S. Vice Presidents Who Became President | 0 | - | 4.63 | 14,038 |
| Add a Letter - Make a U.S. President | 0 | - | 4.66 | 22,111 |
| U.S. Presidents With Facial Hair By Picture | 0 | - | 4.46 | 21,019 |
| People in Pictures with Barack Obama | 0 | - | 4.11 | 45,251 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,421 |
| Biggest European Cities by Letter | 0 | - | 4.66 | 119,798 |
| Official European Union Languages | 0 | - | 4.98 | 202,549 |
| European Countries in their Native Language | 0 | - | 4.99 | 145,320 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 389,778 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,838 |
| European Countries with NO Wolves | 0 | - | 4.63 | 63,972 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,567 |
| Random Sequential European Countries on a Map | 0 | - | 4.99 | 203,663 |
| Europe Map with Random Merged Countries | 0 | - | 4.96 | 269,427 |
| History of Russia Quiz | 0 | - | 4.48 | 30,008 |
| Russia by Picture | 0 | - | 4.35 | 18,912 |
| History of Austria | 0 | - | 4.69 | 16,488 |
| Biggest French Empire Countries | 0 | - | 4.46 | 51,603 |
