| The Trojan War | 0 | - | 4.83 | 40,039 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,133 |
| Name the English Monarchs | 0 | - | 4.91 | 507,208 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,775 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,985 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,504 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,668 |
| Roman Emperors | 0 | - | 4.95 | 121,382 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,804 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,520 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,925 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,961 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,987 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,699 |
| Europe Map Quiz | 0 | - | 5.00 | 4,792,206 |
| Countries Bordering France | 0 | - | 4.83 | 405,264 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,151 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,413 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,803 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,980 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,961 |
| Departments of France | 0 | - | 4.93 | 55,353 |
| Germany Country Quiz | 0 | - | 4.82 | 159,009 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,202 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,375 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,188 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,772 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,592 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,003 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,999 |
| England or Wales? | 0 | - | 4.94 | 46,010 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,293 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,191 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,017 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,203 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,546 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,018 |
| Counties of Ireland | 0 | - | 4.92 | 197,617 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,343 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,598 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,784 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,324 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,584 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,123 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,379 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,455 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,275 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,067 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,725 |
| Name that Greek Letter | 0 | - | 4.93 | 325,197 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,003 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,862 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,257 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,320 |
| Finland Country Quiz | 0 | - | 4.51 | 60,069 |
| Norway Country Quiz | 0 | - | 4.45 | 77,893 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,433 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,259 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,976 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,423 |
| Medieval English History | 0 | - | 4.53 | 43,681 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,137 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,502 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,425 |
| The Only European Country ... | 0 | - | 4.91 | 219,482 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,778 |
| History of Russia Quiz | 0 | - | 4.47 | 32,019 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,886 |
| History of Italy | 0 | - | 4.55 | 32,177 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,366 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,257 |
| Roman Names for Places | 0 | - | 4.62 | 58,773 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,841 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,549 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,281 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,462 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,138 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,996 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,005 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,347 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,101 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,780 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,873 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,738 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,178 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,887 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,092 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,372 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,335 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,891 |
| Slavic Countries | 0 | - | 4.96 | 112,481 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,270 |
| Ancient Greek Words | 0 | - | 4.93 | 112,623 |
| Counties of England | 0 | - | 4.97 | 803,996 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,452 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,206 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,555 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,255 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,266 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,583 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,600 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,747 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,401 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,134 |
| History of Scotland | 0 | - | 4.51 | 21,187 |
| Champions League Winners | 0 | - | 4.92 | 1,017,592 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,078 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,959 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,689 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,800 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,592 |
| Monarchies of Europe | 0 | - | 4.90 | 99,004 |
| European Countries with One Border | 0 | - | 4.97 | 183,990 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,696 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,046 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,864 |
| Countries That Border Russia | 0 | - | 4.98 | 464,817 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,558 |
| History of Austria | 0 | - | 4.70 | 17,991 |
| Austria Country Quiz | 0 | - | 4.57 | 60,105 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,346 |
| France Country Quiz | 0 | - | 4.70 | 135,772 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,782 |
| Geography of the French Empire | 0 | - | 4.45 | 27,229 |
| The French Revolution | 0 | - | 4.47 | 24,164 |
| Kings of France Quiz | 0 | - | 4.21 | 32,960 |
| History of France | 0 | - | 4.61 | 57,706 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,946 |
| States of Germany | 0 | - | 4.95 | 154,864 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,573 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,787 |
| Greece Country Quiz | 0 | - | 4.74 | 66,694 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,593 |
| Regions of Italy | 0 | - | 4.92 | 77,227 |
| Italy Country Quiz | 0 | - | 4.77 | 124,177 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,275 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,978 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,718 |
| Netherlands Country Quiz | 0 | - | 4.52 | 81,020 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,890 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,430 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,395 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Spain Country Quiz | 0 | - | 4.44 | 129,358 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,533 |
| Switzerland Country Quiz | 0 | - | 4.52 | 63,701 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,873 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,595 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,421 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,879 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,486 |
| English Royal Consorts | 0 | - | 4.38 | 37,551 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,349 |
| Geography of the British Empire | 0 | - | 4.48 | 39,866 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,859 |
| Counties of Wales | 0 | - | 4.63 | 39,662 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,031 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,918 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,232 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,252 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,183 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,237 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,081 |
| Russia Country Quiz | 0 | - | 4.83 | 115,417 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,816 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,622 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,019 |
| Figures from Greek Mythology | 0 | - | 4.91 | 189,146 |
| History of Ireland | 0 | - | 4.39 | 31,474 |
| Byzantine History | 0 | - | 4.91 | 29,037 |
| Byzantine Emperors | 0 | - | 4.93 | 14,650 |
| History of The Netherlands | 0 | - | 4.46 | 17,570 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,072 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,756 |
| UK Immigration by Country | 0 | - | 4.94 | 141,862 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,219 |
| British Monopoly Board | 0 | - | 4.52 | 41,286 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,397 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,673 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,730,032 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,936 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,392 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,738 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,811 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,697 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,034 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,229 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,756 |
| Countries that Border Poland | 0 | - | 4.99 | 173,316 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,337 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,722 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,171 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,077 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,084 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,051 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,185 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,954 |
| 20 Questions About France | 0 | - | 4.11 | 32,483 |
