| Monarchies of Europe | 0 | - | 4.90 | 97,312 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,495 |
| Name the English Monarchs | 0 | - | 4.92 | 497,901 |
| Counties of England | 0 | - | 4.97 | 789,192 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,331 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,259 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,948 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 75,423 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 63,418 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,112 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,020 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,130 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,684 |
| States of Germany | 0 | - | 4.96 | 150,053 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,012 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,520 |
| Regions of Italy | 0 | - | 4.92 | 74,727 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,813 |
| History of The Netherlands | 0 | - | 4.46 | 17,311 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,351 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,162 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,908 |
| Monarchies of Asia | 0 | - | 4.97 | 70,601 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,340 |
| Kings of France Quiz | 0 | - | 4.20 | 32,556 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,247 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,120 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,147 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,537 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,171 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,190 |
| Departments of France | 0 | - | 4.93 | 52,826 |
| Germany Country Quiz | 0 | - | 4.82 | 156,546 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,147 |
| Italy Country Quiz | 0 | - | 4.82 | 122,205 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,385 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,080 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,367 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 95,951 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,643 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,045 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,281 |
| England or Wales? | 0 | - | 4.94 | 45,318 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,201 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,223 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,174 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,779 |
| Geography of the British Empire | 0 | - | 4.48 | 39,472 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,255 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,398 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,918 |
| Name that Greek Letter | 0 | - | 4.94 | 321,671 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,463 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,329 |
| Malta Country Quiz | 0 | - | 4.81 | 30,827 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,988 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,304 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,560 |
| The Only European Country ... | 0 | - | 4.91 | 213,836 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,534 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,775 |
| The Trojan War | 0 | - | 4.83 | 39,428 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,771 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,537 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,046 |
| Roman Emperors | 0 | - | 4.95 | 118,491 |
| British Acronyms | 0 | - | 4.39 | 45,619 |
| Medieval English History | 0 | - | 4.53 | 43,319 |
| History of Russia Quiz | 0 | - | 4.49 | 31,794 |
| French History Multiple Choice | 0 | - | 4.55 | 32,879 |
| 101 Figures from Greek Mythology | 0 | - | 5.00 | 124,288 |
| History of Italy | 0 | - | 4.55 | 31,815 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,482 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,981 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,388 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,296 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 54,956 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,836 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,948 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,090 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,639 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,410 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,910 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,856 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,714 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,218 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,896 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,673 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,628 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,025 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,308 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,770 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,598 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,716 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,290 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,327 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,471 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,745 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,826 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,887 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,263 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,205 |
| Slavic Countries | 0 | - | 4.96 | 110,857 |
| Regions of France | 0 | - | 4.78 | 119,250 |
| France Immigration by Country | 0 | - | 4.72 | 75,964 |
| Famous Germans | 0 | - | 4.50 | 54,614 |
| History of Germany | 0 | - | 4.39 | 52,614 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,465 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,132 |
| Ancient Greek Words | 0 | - | 4.92 | 110,693 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,501 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,828 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,960 |
| The UK for Americans - True or False | 0 | - | 4.46 | 58,387 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,689 |
| British History A-Z #1 | 0 | - | 4.45 | 45,814 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,073 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,930 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,328 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,042 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,394 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,860 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,215 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,811 |
| European Countries with One Border | 0 | - | 4.97 | 181,627 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,521 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,793 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,997 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,200 |
| French Inventions | 0 | - | 4.08 | 13,865 |
| History of Paris | 0 | - | 4.24 | 13,616 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 72,465 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,984 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,041 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,548 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,617 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,157 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,087 |
| People on Money - England | 0 | - | 4.29 | 16,564 |
| Embarrassing Chapters in British History | 0 | - | 4.29 | 32,122 |
| History of Scotland | 0 | - | 4.51 | 21,003 |
| Champions League Winners | 0 | - | 4.92 | 996,348 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,999 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,432 |
| Battle to Country | 0 | - | 4.91 | 52,523 |
| Countries That Border Russia | 0 | - | 4.98 | 458,918 |
| History of Austria | 0 | - | 4.70 | 17,747 |
| Austria Country Quiz | 0 | - | 4.57 | 59,342 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,233 |
| France Country Quiz | 0 | - | 4.70 | 133,831 |
| Geography of the French Empire | 0 | - | 4.48 | 26,934 |
| The French Revolution | 0 | - | 4.46 | 23,785 |
| Countries Bordering France | 0 | - | 4.83 | 399,097 |
| History of France | 0 | - | 4.59 | 56,046 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,383 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,048 |
| Greece Country Quiz | 0 | - | 4.74 | 65,757 |
| Luxembourg Country Quiz | 0 | - | 4.77 | 33,482 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,244 |
| Netherlands Country Quiz | 0 | - | 4.50 | 79,962 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,759 |
| The Vikings! | 0 | - | 4.45 | 28,245 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,697 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,339 |
| The Portuguese Empire | 0 | - | 4.54 | 11,990 |
| Spain Country Quiz | 0 | - | 4.45 | 127,608 |
| Switzerland Country Quiz | 0 | - | 4.51 | 62,938 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,566 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,173 |
| English Royal Consorts | 0 | - | 4.37 | 37,162 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,611 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,406 |
| Counties of Wales | 0 | - | 4.63 | 38,903 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,898 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,097 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,087 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,526 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,219 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,638 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,906 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,281 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,494 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,171 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,919 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,297 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,510 |
| European Geography A-Z | 0 | - | 4.28 | 49,003 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,205 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,787 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,251 |
| Russia Country Quiz | 0 | - | 4.85 | 113,631 |
| Croatia Country Quiz | 0 | - | 4.83 | 42,851 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,038 |
| German History A-Z | 0 | - | 4.49 | 24,219 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,948 |
| History of Ireland | 0 | - | 4.39 | 30,827 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,952 |
| The Mafia Quiz | 0 | - | 4.46 | 23,206 |
| Canary Islands | 0 | - | 4.61 | 17,402 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,865 |
