| Name the English Monarchs | 0 | - | 4.91 | 507,546 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,526 |
| Monarchies of Europe | 0 | - | 4.90 | 99,068 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,609 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,181 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,063 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,058 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,764 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,586 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,112 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,013 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,837 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,458 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,366 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,506 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,063 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,317 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,215 |
| Name that Greek Letter | 0 | - | 4.93 | 325,372 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,331 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,670 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,564 |
| The Only European Country ... | 0 | - | 4.91 | 219,707 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,897 |
| The Trojan War | 0 | - | 4.83 | 40,104 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,313 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,759 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,715 |
| Roman Emperors | 0 | - | 4.95 | 121,491 |
| Hindu Countries | 0 | - | 4.86 | 50,696 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| History of Italy | 0 | - | 4.55 | 32,195 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,858 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,480 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,152 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,007 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,043 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,876 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,697 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,128 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,561 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,831 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,576 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,379 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,938 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,265 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,296 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,664 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,417 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,944 |
| Slavic Countries | 0 | - | 4.96 | 112,539 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,617 |
| Ancient Greek Words | 0 | - | 4.93 | 112,717 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,963 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,503 |
| Counties of England | 0 | - | 4.97 | 804,606 |
| British History A-Z #1 | 0 | - | 4.45 | 47,358 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,932 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,182 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,024 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,781 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,935 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,928 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,686 |
| European Countries with One Border | 0 | - | 4.97 | 184,081 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,801 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,208 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,005 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,614 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,854 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,017 |
| States of Germany | 0 | - | 4.95 | 155,009 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,841 |
| Regions of Italy | 0 | - | 4.92 | 77,303 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,564 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,638 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,946 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,648 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,918 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,675 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,860 |
| Champions League Winners | 0 | - | 4.92 | 1,018,439 |
| Monarchies of Asia | 0 | - | 4.97 | 71,635 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,375 |
| Battle to Country | 0 | - | 4.91 | 54,147 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,768 |
| Countries That Border Russia | 0 | - | 4.98 | 465,026 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,240 |
| The French Revolution | 0 | - | 4.47 | 24,172 |
| Countries Bordering France | 0 | - | 4.83 | 405,444 |
| Kings of France Quiz | 0 | - | 4.22 | 32,975 |
| History of France | 0 | - | 4.61 | 57,752 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,231 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,673 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,319 |
| The Vikings! | 0 | - | 4.46 | 28,427 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,496 |
| English Royal Consorts | 0 | - | 4.38 | 37,574 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,403 |
| Geography of the British Empire | 0 | - | 4.48 | 39,888 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,876 |
| Israel Immigration by Country | 0 | - | 4.29 | 36,449 |
| Countries Closest to Israel | 0 | - | 4.69 | 106,923 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,694 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,983 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,180 |
| Canadian Prime Ministers | 0 | - | 4.64 | 58,030 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,033 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,411 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,528 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,170 |
| Russia Country Quiz | 0 | - | 4.83 | 115,490 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,856 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,660 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,005 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,031 |
| Departments of France | 0 | - | 4.93 | 55,446 |
| Germany Country Quiz | 0 | - | 4.82 | 159,121 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,289 |
| German History A-Z | 0 | - | 4.49 | 24,955 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,291 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,077 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,071 |
| Figures from Greek Mythology | 0 | - | 4.92 | 193,737 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,472 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,274 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,792 |
| History of The Netherlands | 0 | - | 4.46 | 17,578 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,647 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,078 |
| British Acronyms | 0 | - | 4.40 | 45,985 |
| British Monopoly Board | 0 | - | 4.52 | 41,297 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,093 |
| Medieval English History | 0 | - | 4.53 | 43,697 |
| England or Wales? | 0 | - | 4.94 | 46,079 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,554 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,832 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,194 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,831 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,614 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,979 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,741 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,247 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,526 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,642 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,754 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,333 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,203 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,414 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,742 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,843 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,460 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,441 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,084 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,442 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,803 |
| Countries that Border Poland | 0 | - | 4.99 | 173,385 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,369 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,393 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,126 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,097 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,078 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,242 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,311 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,072 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,246 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,590 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,229 |
| History of Germany | 0 | - | 4.39 | 53,010 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,517 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,904 |
| Counties of Ireland | 0 | - | 4.92 | 197,756 |
| Italian History A-Z | 0 | - | 4.16 | 17,961 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,394 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,749 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,405 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,274 |
| Roman Names for Places | 0 | - | 4.62 | 58,805 |
| Byzantine History | 0 | - | 4.91 | 29,060 |
| Byzantine Emperors | 0 | - | 4.93 | 14,666 |
| History of Spain | 0 | - | 4.23 | 21,178 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,335 |
| Spanish History A-Z | 0 | - | 4.37 | 19,540 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,436 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,716 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,836 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,258 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,362 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,112 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,034 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,341 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,449 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,442 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 408,304 |
| Malta Country Quiz | 0 | - | 4.81 | 31,275 |
| History of Israel | 0 | - | 3.76 | 11,140 |
| The 12 Tribes of Israel | 0 | - | 3.70 | 9,955 |
