| Battle to Country | 0 | - | 4.91 | 53,213 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,275 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,615 |
| Name the English Monarchs | 0 | - | 4.91 | 501,894 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,917 |
| Monarchies of Europe | 0 | - | 4.90 | 98,014 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,002 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 79,354 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,414 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,806 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,712 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,920 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,032 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,005 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,859 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,435 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,843 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,856 |
| The American Civil War | 0 | - | 4.62 | 52,390 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,758 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,897 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,558 |
| Name that Greek Letter | 0 | - | 4.93 | 323,229 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,704 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,166 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,966 |
| The Only European Country ... | 0 | - | 4.91 | 216,215 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,895 |
| The Trojan War | 0 | - | 4.83 | 39,672 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,645 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,454 |
| Roman Emperors | 0 | - | 4.95 | 119,750 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,796 |
| Countries in World War I | 0 | - | 4.88 | 227,934 |
| Countries that Have Won the Most Battles | 0 | - | 4.02 | 39,534 |
| History of Russia Quiz | 0 | - | 4.49 | 31,898 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,677 |
| History of Italy | 0 | - | 4.55 | 31,953 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,634 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,186 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,816 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,757 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,612 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,309 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,328 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,454 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,950 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,512 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,059 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,346 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,047 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,941 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,134 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,992 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,103 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,913 |
| Slavic Countries | 0 | - | 4.96 | 111,543 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,089 |
| Ancient Greek Words | 0 | - | 4.93 | 111,437 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,174 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,243 |
| Counties of England | 0 | - | 4.97 | 795,421 |
| British History A-Z #1 | 0 | - | 4.45 | 46,428 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,031 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,734 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,345 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,060 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,997 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,596 |
| European Countries with One Border | 0 | - | 4.97 | 182,595 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,414 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,082 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,638 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,788 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,248 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,654 |
| States of Germany | 0 | - | 4.96 | 152,133 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,937 |
| Regions of Italy | 0 | - | 4.92 | 75,684 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,564 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,045 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,003 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,750 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,096 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,906 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,626 |
| Champions League Winners | 0 | - | 4.92 | 1,005,087 |
| Monarchies of Asia | 0 | - | 4.97 | 71,015 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,804 |
| Countries That Border Russia | 0 | - | 4.98 | 461,335 |
| History of Austria | 0 | - | 4.70 | 17,847 |
| Geography of the French Empire | 0 | - | 4.45 | 27,039 |
| The French Revolution | 0 | - | 4.46 | 23,918 |
| Countries Bordering France | 0 | - | 4.83 | 402,114 |
| Kings of France Quiz | 0 | - | 4.20 | 32,695 |
| History of France | 0 | - | 4.59 | 56,895 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,466 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,254 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,779 |
| The Vikings! | 0 | - | 4.46 | 28,332 |
| The Portuguese Empire | 0 | - | 4.58 | 12,054 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,318 |
| English Royal Consorts | 0 | - | 4.37 | 37,334 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,368 |
| Geography of the British Empire | 0 | - | 4.48 | 39,640 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,602 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,670 |
| Countries in World War II | 0 | - | 4.54 | 911,493 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,696 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,461 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,194 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,036 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,832 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,454 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,161 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,475 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,359 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,469 |
| Russia Country Quiz | 0 | - | 4.85 | 114,356 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,277 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,314 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,641 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,554 |
| Departments of France | 0 | - | 4.93 | 53,935 |
| Germany Country Quiz | 0 | - | 4.82 | 157,686 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,974 |
| German History A-Z | 0 | - | 4.49 | 24,586 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,955 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,886 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,597 |
| Italy Country Quiz | 0 | - | 4.82 | 123,278 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,191 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,875 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,529 |
| History of The Netherlands | 0 | - | 4.46 | 17,421 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,788 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,477 |
| British Acronyms | 0 | - | 4.40 | 45,774 |
| British Monopoly Board | 0 | - | 4.52 | 41,149 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,364 |
| Medieval English History | 0 | - | 4.53 | 43,482 |
| England or Wales? | 0 | - | 4.94 | 45,628 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,049 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,905 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 133,313 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,830 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,654 |
| The Vietnam War | 0 | - | 4.44 | 35,495 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,183 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,672 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,691,557 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,194 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,084 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,069 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,647 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,314 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,566 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,672 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,381 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,746 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,197 |
| Countries that Border Poland | 0 | - | 4.99 | 172,137 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,763 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,445 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,134 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,824 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,758 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,310 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,736 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,228 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,814 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,120 |
| French History Multiple Choice | 0 | - | 4.55 | 33,010 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,317 |
| History of Germany | 0 | - | 4.39 | 52,791 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,546 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,624 |
| Counties of Ireland | 0 | - | 4.92 | 194,902 |
| Italian History A-Z | 0 | - | 4.21 | 17,688 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,793 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,842 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,710 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,874 |
| Roman Names for Places | 0 | - | 4.62 | 58,220 |
| Byzantine History | 0 | - | 4.91 | 28,768 |
| History of Spain | 0 | - | 4.23 | 21,073 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,135 |
| Spanish History A-Z | 0 | - | 4.37 | 19,276 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,769 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,371 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,742 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,139 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,114 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,930 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,817 |
| Prime Ministers of the UK | 0 | - | 4.95 | 438,237 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,579 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,748 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 400,672 |
| Malta Country Quiz | 0 | - | 4.81 | 31,020 |
