| The Trojan War | 0 | - | 4.83 | 40,017 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,052 |
| Name the English Monarchs | 0 | - | 4.91 | 506,904 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,719 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,443 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,926 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,333 |
| Name that Greek Letter | 0 | - | 4.93 | 325,099 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,482 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,632 |
| Roman Emperors | 0 | - | 4.95 | 121,307 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,676 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,448 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,701 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,881 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,924 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,642 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,225 |
| Countries Bordering France | 0 | - | 4.83 | 405,083 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,999 |
| Ancient Greek Words | 0 | - | 4.93 | 112,561 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,364 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,876 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,772 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,964 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,879 |
| Departments of France | 0 | - | 4.93 | 55,246 |
| Germany Country Quiz | 0 | - | 4.82 | 158,923 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,135 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,296 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,110 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,541 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,941 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,888 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,115 |
| England or Wales? | 0 | - | 4.94 | 45,990 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,097 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,976 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,179 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,516 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,826 |
| Greece Country Quiz | 0 | - | 4.74 | 66,664 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,245 |
| Counties of Ireland | 0 | - | 4.92 | 197,441 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,296 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,486 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,224 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,495 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,097 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,344 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,397 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,250 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,054 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,540 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,228 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,917 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,380 |
| Medieval English History | 0 | - | 4.53 | 43,668 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,268 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,979 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,370 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,293 |
| The Only European Country ... | 0 | - | 4.91 | 219,275 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,652 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Countries that Beat Greece | 0 | - | 4.53 | 49,525 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,867 |
| History of Italy | 0 | - | 4.55 | 32,161 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,335 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,229 |
| Roman Names for Places | 0 | - | 4.62 | 58,737 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,441 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,115 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,987 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,980 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,338 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,099 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,114 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,485 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,386 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,654 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,149 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,003 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,842 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,919 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,105 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,262 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,829 |
| Slavic Countries | 0 | - | 4.96 | 112,429 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,008 |
| Counties of England | 0 | - | 4.97 | 803,474 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,476 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,056 |
| Countries that have Won the Most Eurovisions | 0 | - | 4.61 | 102,783 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,177 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,460 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,421 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,800 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,023 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,544 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,598 |
| Embarrassing Chapters in British History | 0 | - | 4.30 | 32,385 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,097 |
| History of Scotland | 0 | - | 4.51 | 21,181 |
| Champions League Winners | 0 | - | 4.92 | 1,016,860 |
| Name a Valid Answer - British History | 0 | - | 4.57 | 15,245 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,042 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,894 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,613 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,694 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,532 |
| Monarchies of Europe | 0 | - | 4.90 | 98,938 |
| European Countries with One Border | 0 | - | 4.97 | 183,891 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,611 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,977 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,688 |
| Countries That Border Russia | 0 | - | 4.98 | 464,653 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,513 |
| History of Austria | 0 | - | 4.70 | 17,981 |
| Austria Country Quiz | 0 | - | 4.57 | 60,084 |
| Belgium Country Quiz | 0 | - | 4.72 | 72,290 |
| France Country Quiz | 0 | - | 4.70 | 135,714 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,724 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| Kings of France Quiz | 0 | - | 4.21 | 32,940 |
| History of France | 0 | - | 4.61 | 57,664 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,876 |
| States of Germany | 0 | - | 4.95 | 154,683 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,564 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,735 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,589 |
| Regions of Italy | 0 | - | 4.92 | 77,157 |
| Italy Country Quiz | 0 | - | 4.77 | 124,110 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,270 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,964 |
| Monaco Country Quiz | 0 | - | 4.48 | 41,708 |
| Netherlands Country Quiz | 0 | - | 4.52 | 80,977 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,840 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,760 |
| The Vikings! | 0 | - | 4.46 | 28,413 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,405 |
| Portugal Country Quiz | 0 | - | 4.69 | 72,353 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Spain Country Quiz | 0 | - | 4.44 | 129,306 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,430 |
| Switzerland Country Quiz | 0 | - | 4.52 | 63,671 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,816 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,568 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,394 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,867 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,476 |
| English Royal Consorts | 0 | - | 4.38 | 37,539 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,304 |
| Geography of the British Empire | 0 | - | 4.48 | 39,854 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,846 |
| Counties of Wales | 0 | - | 4.63 | 39,652 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,970 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,864 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,048 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,062 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,052 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,909 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,976 |
| Russia Country Quiz | 0 | - | 4.83 | 115,367 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,782 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,608 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,008 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,988 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,995 |
| History of Ireland | 0 | - | 4.39 | 31,449 |
| Byzantine History | 0 | - | 4.91 | 29,033 |
| Byzantine Emperors | 0 | - | 4.93 | 14,625 |
| History of The Netherlands | 0 | - | 4.46 | 17,562 |
| Denmark Country Quiz | 0 | - | 4.78 | 76,296 |
| Finland Country Quiz | 0 | - | 4.51 | 60,037 |
| Norway Country Quiz | 0 | - | 4.45 | 77,861 |
| Iceland Country Quiz | 0 | - | 4.69 | 43,415 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,001 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,737 |
| UK Immigration by Country | 0 | - | 4.94 | 141,794 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,123 |
| British Monopoly Board | 0 | - | 4.52 | 41,277 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,274 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,599 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,927 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,861 |
| O Canada Lyrics | 0 | - | 4.47 | 51,075 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,349 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,376 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,767 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,886 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,989 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,159 |
| Random Point on Land to European Country | 0 | - | 4.94 | 78,111 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,715 |
