| The Trojan War | 0 | - | 4.83 | 39,642 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,525 |
| Name the English Monarchs | 0 | - | 4.91 | 501,416 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,906 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,516 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,086 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,871 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,412 |
| Roman Emperors | 0 | - | 4.95 | 119,645 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,506 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,871 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,109 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,273 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,694 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,592 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,087 |
| Countries Bordering France | 0 | - | 4.83 | 401,852 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,580 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,458 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,387 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,425 |
| Departments of France | 0 | - | 4.93 | 53,766 |
| Germany Country Quiz | 0 | - | 4.82 | 157,561 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,857 |
| Italy Country Quiz | 0 | - | 4.82 | 123,172 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,114 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,806 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,514 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,651 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,361 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,210 |
| England or Wales? | 0 | - | 4.94 | 45,594 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,460 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,712 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,180 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,786 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,086 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 96,060 |
| Counties of Ireland | 0 | - | 4.92 | 194,610 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,746 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,691 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,374 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,596 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 130,142 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,223 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,681 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,612 |
| Countries that Beat Germany | 0 | - | 4.95 | 106,091 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,934 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,875 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,032 |
| Name that Greek Letter | 0 | - | 4.93 | 323,073 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,244 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,305 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,786 |
| Finland Country Quiz | 0 | - | 4.50 | 59,527 |
| Norway Country Quiz | 0 | - | 4.44 | 77,163 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,080 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,366 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,140 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,779 |
| Medieval English History | 0 | - | 4.53 | 43,460 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,506 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,919 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,808 |
| The Only European Country ... | 0 | - | 4.91 | 215,949 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,757 |
| History of Russia Quiz | 0 | - | 4.49 | 31,879 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,605 |
| History of Italy | 0 | - | 4.55 | 31,935 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,692 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,857 |
| Roman Names for Places | 0 | - | 4.62 | 58,174 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,610 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,306 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,652 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,161 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,790 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,738 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,571 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,099 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,924 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,770 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,038 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,411 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,957 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,142 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,974 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,951 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,559 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,990 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,711 |
| Slavic Countries | 0 | - | 4.96 | 111,481 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,507 |
| Ancient Greek Words | 0 | - | 4.93 | 111,338 |
| Counties of England | 0 | - | 4.97 | 794,686 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,134 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,899 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,583 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,114 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,191 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,995 |
| Sweden Country Quiz | 0 | - | 4.35 | 68,089 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,004 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,222 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,466 |
| History of Scotland | 0 | - | 4.51 | 21,073 |
| Champions League Winners | 0 | - | 4.92 | 1,003,623 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,657 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,230 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,888 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,489 |
| Monarchies of Europe | 0 | - | 4.90 | 97,942 |
| European Countries with One Border | 0 | - | 4.97 | 182,494 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,303 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,920 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,356 |
| Countries That Border Russia | 0 | - | 4.98 | 461,069 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,719 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Austria Country Quiz | 0 | - | 4.57 | 59,630 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,648 |
| France Country Quiz | 0 | - | 4.70 | 134,745 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,126 |
| Geography of the French Empire | 0 | - | 4.45 | 27,024 |
| The French Revolution | 0 | - | 4.46 | 23,901 |
| Kings of France Quiz | 0 | - | 4.20 | 32,682 |
| History of France | 0 | - | 4.59 | 56,819 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,533 |
| States of Germany | 0 | - | 4.96 | 151,867 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,462 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,871 |
| Greece Country Quiz | 0 | - | 4.74 | 66,128 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,477 |
| Regions of Italy | 0 | - | 4.92 | 75,533 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,167 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,691 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,434 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,380 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,838 |
| The Vikings! | 0 | - | 4.46 | 28,319 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,040 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,735 |
| The Portuguese Empire | 0 | - | 4.58 | 12,046 |
| Spain Country Quiz | 0 | - | 4.45 | 128,284 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,614 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,254 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,992 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,544 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,558 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,676 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,306 |
| English Royal Consorts | 0 | - | 4.37 | 37,320 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,290 |
| Geography of the British Empire | 0 | - | 4.48 | 39,628 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,658 |
| Counties of Wales | 0 | - | 4.63 | 39,189 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,600 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,865 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,772 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,570 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,267 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,646 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,882 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,318 |
| Russia Country Quiz | 0 | - | 4.85 | 114,265 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,231 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,288 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,756 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,414 |
| History of Ireland | 0 | - | 4.39 | 31,107 |
| Byzantine History | 0 | - | 4.91 | 28,754 |
| History of The Netherlands | 0 | - | 4.46 | 17,405 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,695 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,327 |
| UK Immigration by Country | 0 | - | 4.94 | 140,664 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,435 |
| British Monopoly Board | 0 | - | 4.52 | 41,137 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,718 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,566 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,489 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,185 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,040 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,642 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,270 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,353 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,340 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,758 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,158 |
| Countries that Border Poland | 0 | - | 4.99 | 172,043 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,712 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,453 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,197 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,085 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,796 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,734 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,239 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,469 |
| 20 Questions About France | 0 | - | 4.11 | 32,393 |
| Countries that Beat France | 0 | - | 4.49 | 75,606 |
