| Name the English Monarchs | 0 | - | 4.92 | 499,660 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,809 |
| Germany Country Quiz | 0 | - | 4.82 | 157,054 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,480 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,733 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,196 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 60,593 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,292 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,770 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,028 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,753 |
| The Trojan War | 0 | - | 4.83 | 39,536 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,044 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,230 |
| Roman Emperors | 0 | - | 4.95 | 119,052 |
| UK Cities Map Quiz | 0 | - | 4.95 | 463,037 |
| Medieval English History | 0 | - | 4.53 | 43,378 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,372 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,151 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,421 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,767 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,874 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,418 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,299 |
| Countries Bordering France | 0 | - | 4.83 | 400,860 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,084 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,672 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,438 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,028 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,884 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,625 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,602 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 73,016 |
| Italy Country Quiz | 0 | - | 4.82 | 122,588 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,741 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,387 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,344 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,958 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,344 |
| UK Immigration by Country | 0 | - | 4.94 | 140,021 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,769 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,981 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,670 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,946 |
| Counties of Ireland | 0 | - | 4.92 | 193,815 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,607 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,797 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,121 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,576 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,296 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,167 |
| History of Scotland | 0 | - | 4.51 | 21,033 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,996 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,970 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,503 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,093 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,704 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,854 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,087 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,907 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,622 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,758 |
| English Royal Consorts | 0 | - | 4.37 | 37,251 |
| Animals in British History | 0 | - | 4.44 | 25,921 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,729 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,044 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,164 |
| The Only European Country ... | 0 | - | 4.91 | 214,869 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,153 |
| Random European Flag to Country | 0 | - | 4.89 | 181,425 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 71,021 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,054 |
| Flags of North and South America | 0 | - | 4.99 | 369,577 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,667 |
| Flags of Countries That Border France | 0 | - | 4.89 | 122,418 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,398 |
| Flags of Countries that Border Germany | 0 | - | 4.86 | 96,584 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,184 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,518 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,605 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,760 |
| Roman Names for Places | 0 | - | 4.62 | 58,019 |
| Counties of England | 0 | - | 4.97 | 791,861 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,690 |
| Oldest Cities in the United Kingdom | 0 | - | 4.39 | 23,655 |
| History of London | 0 | - | 4.33 | 26,121 |
| British History Quiz for Dummies | 0 | - | 4.70 | 78,302 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,274 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,048 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,629 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,166 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,703 |
| Cross Flags of Europe | 0 | - | 4.43 | 297,532 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,982 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,039 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,160 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,634 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,443 |
| Slavic Countries | 0 | - | 4.96 | 111,158 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,806 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 66,964 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,708 |
| The Reign of Henry VIII | 0 | - | 4.25 | 27,657 |
| Elizabeth I... or Elizabeth II? | 0 | - | 4.30 | 24,454 |
| Former Flags | 0 | - | 4.97 | 107,070 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,342 |
| Flags of Oceania | 0 | - | 5.00 | 256,592 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,282 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,810 |
| Monarchies of Europe | 0 | - | 4.90 | 97,621 |
| European Countries with One Border | 0 | - | 4.97 | 182,018 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,893 |
| Countries That Border Russia | 0 | - | 4.98 | 460,090 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,459 |
| Austria Country Quiz | 0 | - | 4.57 | 59,498 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,433 |
| France Country Quiz | 0 | - | 4.70 | 134,403 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,648 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,013 |
| Kings of France Quiz | 0 | - | 4.20 | 32,617 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,541 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,069 |
| Greece Country Quiz | 0 | - | 4.74 | 65,932 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,448 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,129 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,586 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,338 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,174 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,932 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,539 |
| Spain Country Quiz | 0 | - | 4.45 | 127,947 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,097 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,270 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,519 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,615 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,148 |
| Name the James Bond Movies | 0 | - | 4.56 | 157,975 |
| James Bond Trivia | 0 | - | 4.46 | 39,202 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,255 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,049 |
| Geography of the British Empire | 0 | - | 4.48 | 39,566 |
| Counties of Wales | 0 | - | 4.63 | 39,043 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,715 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,356 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,229 |
| Pixelated United States Map | 0 | - | 4.89 | 93,749 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,670,297 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,652 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,854 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,539 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,414 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,900 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,268 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,048 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,648 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,920 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,349 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,378 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,266 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,754 |
| Countries that Border Poland | 0 | - | 4.99 | 171,707 |
| Russia Country Quiz | 0 | - | 4.85 | 113,969 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,527 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,340 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,036 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,892 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,157 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,007 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,612 |
| Departments of France | 0 | - | 4.93 | 53,166 |
| Famous Germans by Picture | 0 | - | 4.12 | 16,784 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 143,715 |
| German Inventions | 0 | - | 3.91 | 30,202 |
| Embarrassing Chapters in German History | 0 | - | 3.41 | 12,590 |
| History of Ireland | 0 | - | 4.39 | 30,967 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,112 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,419 |
| Roman History by Picture | 0 | - | 4.46 | 26,381 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,598 |
| Finland Country Quiz | 0 | - | 4.50 | 59,321 |
| Norway Country Quiz | 0 | - | 4.44 | 76,911 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,957 |
| Countries Bordering Spain | 0 | - | 4.51 | 69,204 |
| Arthurian Legend | 0 | - | 4.33 | 25,071 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,540 |
| Satellite Images - The United Kingdom | 0 | - | 4.40 | 27,943 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,869 |
| Top 100 UK Baby Boys' Names in 1850 | 0 | - | 4.42 | 69,507 |
| Most-Visited Countries by the British | 0 | - | 4.64 | 68,285 |
| Scotland Trivia | 0 | - | 4.58 | 57,475 |
| England or Wales? | 0 | - | 4.94 | 45,458 |
| WWII Geography | 0 | - | 4.81 | 119,750 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,140 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,948 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,806 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,187 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,704 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,637 |
| 20 Questions About France | 0 | - | 4.11 | 32,358 |
