| Battle to Country | 0 | - | 4.91 | 53,973 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,659 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,802 |
| Name the English Monarchs | 0 | - | 4.91 | 506,477 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,452 |
| Monarchies of Europe | 0 | - | 4.90 | 98,886 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,397 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,483 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,804 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,867 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,598 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,145 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,737 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,904 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,808 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,754 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,906 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,954 |
| The American Civil War | 0 | - | 4.62 | 52,627 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,928 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,095 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,022 |
| Name that Greek Letter | 0 | - | 4.93 | 325,002 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,835 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,261 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,166 |
| The Only European Country ... | 0 | - | 4.91 | 219,076 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,547 |
| The Trojan War | 0 | - | 4.83 | 39,993 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,975 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,596 |
| Roman Emperors | 0 | - | 4.95 | 121,222 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,169 |
| Countries in World War I | 0 | - | 4.88 | 229,170 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,783 |
| History of Russia Quiz | 0 | - | 4.47 | 32,006 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,574 |
| History of Italy | 0 | - | 4.55 | 32,149 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,825 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,428 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,100 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,971 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,957 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,783 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,360 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,399 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,815 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,538 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,076 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,838 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,780 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,188 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,813 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,867 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,197 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,803 |
| Slavic Countries | 0 | - | 4.96 | 112,382 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,811 |
| Ancient Greek Words | 0 | - | 4.93 | 112,480 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,827 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,408 |
| Counties of England | 0 | - | 4.97 | 803,049 |
| British History A-Z #1 | 0 | - | 4.45 | 47,266 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,799 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,961 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,825 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,532 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,614 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,783 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,484 |
| European Countries with One Border | 0 | - | 4.97 | 183,818 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,557 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,861 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,533 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,478 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,662 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,812 |
| States of Germany | 0 | - | 4.95 | 154,549 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,704 |
| Regions of Italy | 0 | - | 4.92 | 77,100 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,861 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,505 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,812 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,346 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,775 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,534 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,818 |
| Champions League Winners | 0 | - | 4.92 | 1,016,308 |
| Monarchies of Asia | 0 | - | 4.97 | 71,513 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,293 |
| Countries That Border Russia | 0 | - | 4.98 | 464,539 |
| History of Austria | 0 | - | 4.70 | 17,975 |
| Geography of the French Empire | 0 | - | 4.45 | 27,218 |
| The French Revolution | 0 | - | 4.47 | 24,148 |
| Countries Bordering France | 0 | - | 4.83 | 404,954 |
| Kings of France Quiz | 0 | - | 4.21 | 32,931 |
| History of France | 0 | - | 4.61 | 57,627 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,560 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,619 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,894 |
| The Vikings! | 0 | - | 4.46 | 28,407 |
| The Portuguese Empire | 0 | - | 4.58 | 12,107 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,465 |
| English Royal Consorts | 0 | - | 4.38 | 37,528 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,263 |
| Geography of the British Empire | 0 | - | 4.48 | 39,849 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,652 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Countries in World War II | 0 | - | 4.53 | 919,016 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,850 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,107 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,934 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,737 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,948 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,701 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,905 |
| Russia Country Quiz | 0 | - | 4.83 | 115,324 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,749 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,596 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,940 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,822 |
| Departments of France | 0 | - | 4.93 | 55,175 |
| Germany Country Quiz | 0 | - | 4.82 | 158,860 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,080 |
| German History A-Z | 0 | - | 4.49 | 24,918 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,244 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,048 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,969 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,875 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,259 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,064 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,746 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,505 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,885 |
| British Acronyms | 0 | - | 4.40 | 45,945 |
| British Monopoly Board | 0 | - | 4.52 | 41,273 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,796 |
| Medieval English History | 0 | - | 4.53 | 43,657 |
| England or Wales? | 0 | - | 4.94 | 45,973 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,176 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,757 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,346 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,385 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,742 |
| The Vietnam War | 0 | - | 4.44 | 35,661 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,554 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,350 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,446 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,232 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,726,502 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,340 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,550 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,360 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,720 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,736 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,233 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,276 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,949 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,321 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,687 |
| Countries that Border Poland | 0 | - | 4.99 | 173,183 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,277 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,888 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,014 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,050 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,029 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,106 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,089 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,955 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,152 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,486 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,678 |
| History of Germany | 0 | - | 4.39 | 52,973 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,319 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,843 |
| Counties of Ireland | 0 | - | 4.92 | 197,365 |
| Italian History A-Z | 0 | - | 4.16 | 17,932 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,261 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,399 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,299 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,210 |
| Roman Names for Places | 0 | - | 4.62 | 58,715 |
| Byzantine History | 0 | - | 4.91 | 29,025 |
| Byzantine Emperors | 0 | - | 4.93 | 14,601 |
| History of Spain | 0 | - | 4.23 | 21,165 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,316 |
| Spanish History A-Z | 0 | - | 4.37 | 19,511 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,144 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,413 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,828 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,244 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,319 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,090 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,993 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,383 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,078 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,308 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,934 |
| Malta Country Quiz | 0 | - | 4.81 | 31,238 |
