| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,347 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,506 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,834 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,320 |
| Byzantine History | 0 | - | 4.91 | 28,603 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,868 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,364 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,329 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,055 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 55,968 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,638 |
| States of Germany | 0 | - | 4.96 | 149,938 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,985 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,908 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,403 |
| Germany Country Quiz | 0 | - | 4.82 | 156,476 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,101 |
| Name the English Monarchs | 0 | - | 4.92 | 497,688 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 60,300 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,661 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,186 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,431 |
| The Trojan War | 0 | - | 4.83 | 39,418 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,577 |
| Name that Greek Letter | 0 | - | 4.94 | 321,529 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,478 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,843 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,021 |
| Roman Emperors | 0 | - | 4.95 | 118,397 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,436 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,452 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,039 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,123 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,620 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,379 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,601 |
| Ancient Greek Words | 0 | - | 4.92 | 110,631 |
| Roman to Greek God | 0 | - | 4.52 | 122,170 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 124,182 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,014 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 491,304 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,873 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,572 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,209 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,343 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,451 |
| The Only European Country ... | 0 | - | 4.91 | 213,680 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,440 |
| History of Russia Quiz | 0 | - | 4.49 | 31,784 |
| History of Germany | 0 | - | 4.39 | 52,608 |
| History of Italy | 0 | - | 4.55 | 31,806 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,594 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,474 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,974 |
| Counties of England | 0 | - | 4.97 | 788,824 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,374 |
| Groups of Things - Harry Potter | 0 | - | 4.82 | 280,043 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,605 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,296 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,659 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,252 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,004 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,208 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,304 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,438 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,785 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,700 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,740 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,746 |
| Monarchies of Europe | 0 | - | 4.90 | 97,269 |
| European Countries with One Border | 0 | - | 4.97 | 181,554 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,382 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,178 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,206 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,150 |
| Slavic Countries | 0 | - | 4.96 | 110,813 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,856 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,147 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,062 |
| History of France | 0 | - | 4.59 | 55,963 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 66,898 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,922 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,104 |
| Countries of the German Empire | 0 | - | 4.51 | 37,648 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 87,148 |
| Regions of Italy | 0 | - | 4.92 | 74,653 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,778 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,230 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,098 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,876 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,108 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 42,258 |
| Lord of the Rings Characters | 0 | - | 4.54 | 112,665 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,164 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,739 |
| Geography of the British Empire | 0 | - | 4.48 | 39,467 |
| Champions League Winners | 0 | - | 4.92 | 995,815 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,811 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,067 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,651,983 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,195 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,204 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,083 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,775 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,816 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,771 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,400 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,089 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,071 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,925 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,554 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,153 |
| Countries that Border Poland | 0 | - | 4.99 | 171,293 |
| Russia Country Quiz | 0 | - | 4.85 | 113,601 |
| Countries That Border Russia | 0 | - | 4.98 | 458,769 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,354 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 98,328 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,824 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,665 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,017 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,700 |
| History of Austria | 0 | - | 4.70 | 17,742 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,506 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,741 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,131 |
| Departments of France | 0 | - | 4.93 | 52,746 |
| Geography of the French Empire | 0 | - | 4.48 | 26,922 |
| The French Revolution | 0 | - | 4.46 | 23,769 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,497 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,781 |
| Countries that Beat France | 0 | - | 4.49 | 75,142 |
| Countries Bordering France | 0 | - | 4.85 | 398,422 |
| French History Multiple Choice | 0 | - | 4.55 | 32,864 |
| German History A-Z | 0 | - | 4.49 | 24,206 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,759 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,765 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,858 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,420 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.80 | 20,663 |
| Counties of Ireland | 0 | - | 4.92 | 192,957 |
| Italy Country Quiz | 0 | - | 4.82 | 122,140 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,318 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,028 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,421 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,928 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,244 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,354 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,524 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,656 |
| Roman Names for Places | 0 | - | 4.62 | 57,855 |
| The Vikings! | 0 | - | 4.45 | 28,237 |
| The Portuguese Empire | 0 | - | 4.54 | 11,986 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,922 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,591 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,216 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,192 |
| British Geography Quiz #1 | 0 | - | 4.51 | 48,141 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,528 |
| Shakespeare's Plays Quiz | 0 | - | 4.38 | 385,598 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 377,239 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,675 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,195 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,287 |
| Medieval English History | 0 | - | 4.53 | 43,305 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,948 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,825 |
| Prime Ministers of the UK | 0 | - | 4.96 | 434,431 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,676 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,739 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,400 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 396,950 |
| England or Wales? | 0 | - | 4.94 | 45,298 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,407 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,570 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,582 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,088 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,847 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 95,875 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,596 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,526 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,370 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,570 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,663 |
| Germany A-Z | 0 | - | 4.56 | 62,303 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,291 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 70,735 |
| Which City in Germany? | 0 | - | 4.50 | 134,951 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,663 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,979 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,007 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,301 |
| History of The Netherlands | 0 | - | 4.46 | 17,305 |
| Countries Closest to Iceland | 0 | - | 4.89 | 72,810 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,320 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,639 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,803 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,685 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,106 |
| British History A-Z #1 | 0 | - | 4.45 | 45,789 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,071 |
