| Name the English Monarchs | 0 | - | 4.92 | 499,147 |
| The Trojan War | 0 | - | 4.83 | 39,502 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,439 |
| Name that Greek Letter | 0 | - | 4.94 | 322,134 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,911 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,178 |
| Roman Emperors | 0 | - | 4.95 | 118,838 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,661 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,768 |
| Finland Country Quiz | 0 | - | 4.50 | 59,268 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,444 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,262 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,680 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,720 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,338 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,223 |
| Countries Bordering France | 0 | - | 4.83 | 400,573 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,591 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,616 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,481 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,229 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,573 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,935 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,629 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,900 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,926 |
| Counties of Ireland | 0 | - | 4.92 | 193,631 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,571 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,668 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,521 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,964 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,252 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,690 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,122 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,936 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,913 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,927 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,735 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,646 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,605 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,071 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,029 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,546 |
| Norway Country Quiz | 0 | - | 4.44 | 76,837 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,928 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,016 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,842 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,582 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,983 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,243 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,538 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,826 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,995 |
| The Only European Country ... | 0 | - | 4.91 | 214,590 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,995 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,503 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,606 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,544 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,103 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,848 |
| History of Russia Quiz | 0 | - | 4.49 | 31,820 |
| Ancient Greek Words | 0 | - | 4.92 | 110,943 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,102 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,497 |
| History of Italy | 0 | - | 4.55 | 31,865 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,588 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,740 |
| Roman Names for Places | 0 | - | 4.62 | 57,975 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,524 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,180 |
| Most-Visited Countries by Swedes | 0 | - | 4.64 | 52,982 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,041 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,062 |
| Counties of England | 0 | - | 4.97 | 791,100 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,651 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,524 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,729 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,615 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,653 |
| British History A-Z #1 | 0 | - | 4.45 | 46,215 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,393 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,426 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,254 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,388 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,645 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,956 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,533 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,938 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,640 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,781 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,850 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,522 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,375 |
| Slavic Countries | 0 | - | 4.96 | 111,063 |
| Countries that have Won the Most Eurovisions | 0 | - | 4.56 | 101,393 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,779 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,881 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,043 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,499 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,736 |
| Sweden Country Quiz | 0 | - | 4.35 | 67,863 |
| Champions League Winners | 0 | - | 4.92 | 998,739 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,524 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,208 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,673 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,216 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,040 |
| Monarchies of Europe | 0 | - | 4.90 | 97,534 |
| European Countries with One Border | 0 | - | 4.97 | 181,893 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,802 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,523 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,754 |
| Countries That Border Russia | 0 | - | 4.98 | 459,811 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,366 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,499 |
| Geography of the French Empire | 0 | - | 4.45 | 26,968 |
| The French Revolution | 0 | - | 4.46 | 23,833 |
| History of France | 0 | - | 4.59 | 56,403 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,996 |
| States of Germany | 0 | - | 4.96 | 150,676 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,410 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,212 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,443 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,472 |
| Regions of Italy | 0 | - | 4.92 | 74,987 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,124 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,991 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,891 |
| The Vikings! | 0 | - | 4.46 | 28,269 |
| The Portuguese Empire | 0 | - | 4.54 | 12,008 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,827 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,538 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,195 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,238 |
| English Royal Consorts | 0 | - | 4.37 | 37,234 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,978 |
| Geography of the British Empire | 0 | - | 4.48 | 39,540 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,582 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,132 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,665,654 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,544 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,441 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,315 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,858 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,993 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,004 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,151 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,726 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,635 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,229 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,775 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,576 |
| Countries that Border Poland | 0 | - | 4.99 | 171,602 |
| Russia Country Quiz | 0 | - | 4.85 | 113,848 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,476 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,082 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,983 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,836 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,124 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,928 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,460 |
| Departments of France | 0 | - | 4.93 | 53,073 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,693 |
| Germany Country Quiz | 0 | - | 4.82 | 156,877 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,392 |
| German History A-Z | 0 | - | 4.49 | 24,477 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,829 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,807 |
| Italy Country Quiz | 0 | - | 4.82 | 122,470 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,641 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,306 |
| Italian History A-Z | 0 | - | 4.21 | 17,600 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,409 |
| The Life of Julius Caesar | 0 | - | 4.39 | 38,995 |
| Byzantine History | 0 | - | 4.91 | 28,667 |
| History of The Netherlands | 0 | - | 4.46 | 17,347 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,207 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,262 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,858 |
| Spanish History A-Z | 0 | - | 4.37 | 19,199 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,158 |
| Arthurian Legend | 0 | - | 4.33 | 25,065 |
| British Monopoly Board | 0 | - | 4.52 | 41,077 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,596 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,508 |
| Viva la Vida Lyrics | 0 | - | 4.37 | 49,631 |
| Medieval English History | 0 | - | 4.53 | 43,354 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,726 |
| England or Wales? | 0 | - | 4.94 | 45,420 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,882 |
| O Canada Lyrics | 0 | - | 4.47 | 50,832 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,128 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,614 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,504 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,894 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,099 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,682 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,608 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,474 |
