| Name the English Monarchs | 0 | - | 4.92 | 499,792 |
| Monarchies of Europe | 0 | - | 4.90 | 97,648 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,468 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,799 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,904 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,442 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,319 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,637 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,656 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,559 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,434 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,832 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,968 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,759 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,257 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,063 |
| Geography of the British Empire | 0 | - | 4.48 | 39,567 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,671,676 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,682 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,695 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,370 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,410 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,342 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,249 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,792 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,093 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,204 |
| The Only European Country ... | 0 | - | 4.91 | 214,944 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,206 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,697 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,676 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,446 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,131 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,145 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,530 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,960 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,074 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,652 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,230 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,728 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,200 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,662 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,491 |
| Slavic Countries | 0 | - | 4.96 | 111,184 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,721 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,910 |
| Counties of England | 0 | - | 4.97 | 792,058 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,287 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,719 |
| British History A-Z #1 | 0 | - | 4.45 | 46,276 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,108 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,753 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 424,834 |
| First Names of U.S. Presidents | 0 | - | 4.85 | 380,255 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,295 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,841 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,409 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,536 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,180 |
| European Countries with One Border | 0 | - | 4.97 | 182,058 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,918 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,755 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,483 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,680 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,097 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,079 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,286 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,567 |
| Monarchies of Asia | 0 | - | 4.97 | 70,794 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,596 |
| Communist Countries in History | 0 | - | 4.63 | 493,696 |
| Battle to Country | 0 | - | 4.91 | 52,858 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 190,585 |
| Play-Doh Presidents | 0 | - | 5.00 | 81,904 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,280 |
| Countries That Border Russia | 0 | - | 4.98 | 460,168 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.45 | 26,705 |
| Countries Bordering France | 0 | - | 4.83 | 400,941 |
| History of France | 0 | - | 4.59 | 56,541 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,078 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,862 |
| English Royal Consorts | 0 | - | 4.37 | 37,255 |
| All UK Parliament Constituencies on a Map | 0 | - | 4.60 | 28,626 |
| Political Movements by Country | 0 | - | 4.46 | 72,368 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,256 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,712 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,518 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,770 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,406 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,832 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,590 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,964 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,386 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,795 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,875 |
| Russia Country Quiz | 0 | - | 4.85 | 113,991 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,052 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,165 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,628 |
| Germany Country Quiz | 0 | - | 4.82 | 157,092 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,499 |
| Italy Country Quiz | 0 | - | 4.82 | 122,612 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,764 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,398 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,122 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,357 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,977 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,369 |
| UK Immigration by Country | 0 | - | 4.94 | 140,039 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,814 |
| Former Dominions of the British Empire | 0 | - | 4.27 | 24,125 |
| Medieval English History | 0 | - | 4.53 | 43,383 |
| Name the Popes Quiz | 0 | - | 4.47 | 137,513 |
| Countries of the Popes | 0 | - | 4.79 | 127,547 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,661 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,844 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,223 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,978 |
| National Founders | 0 | - | 4.40 | 83,719 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,471 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,480 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 28,958 |
| U.S. States by Governor | 0 | - | 4.43 | 18,011 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,611 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.49 | 11,695 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,597 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,504 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,913 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,331 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,054 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,958 |
| Countries that Border Poland | 0 | - | 4.99 | 171,729 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,535 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,397 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,903 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,712 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,643 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,029 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,514 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,997 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,680 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,955 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,257 |
| History of Germany | 0 | - | 4.39 | 52,707 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,221 |
| Name that Greek Letter | 0 | - | 4.93 | 322,411 |
| Counties of Ireland | 0 | - | 4.92 | 193,887 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,615 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,827 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,072 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,156 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,606 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,357 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,030 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,888 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,747 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,013 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,976 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,809 |
| Malta Country Quiz | 0 | - | 4.81 | 30,918 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,590 |
| Hindu Countries | 0 | - | 4.86 | 49,796 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,277 |
| Colonies of Africa with a Map | 0 | - | 4.77 | 54,160 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,252 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,803 |
| The American Civil War | 0 | - | 4.62 | 52,260 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,177 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,031 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,675 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,680 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,820 |
| Random European Flag to Country | 0 | - | 4.89 | 181,463 |
| History of Russia Quiz | 0 | - | 4.49 | 31,834 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,829 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,401 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,205 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,105 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,122 |
| Germany A-Z | 0 | - | 4.56 | 62,440 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,046 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,769 |
| The Trojan War | 0 | - | 4.83 | 39,542 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,089 |
| History of Italy | 0 | - | 4.55 | 31,888 |
| Italy A-Z | 0 | - | 4.49 | 57,970 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,098 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,247 |
| Roman Emperors | 0 | - | 4.95 | 119,122 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,549 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,114 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,511 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,921 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,076 |
| Biggest Trading Partners - Spain | 0 | - | 4.91 | 53,616 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,631 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,086 |
| Monty Python Quotes | 0 | - | 4.88 | 42,369 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,170 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,663 |
