| European Countries by First 2 Letters | 0 | - | 4.95 | 530,558 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,471 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,193 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,817 |
| States of Germany | 0 | - | 4.95 | 153,166 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,281 |
| Regions of Italy | 0 | - | 4.92 | 76,231 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,421 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,393 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,414 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,752 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,320 |
| Official European Union Languages | 0 | - | 4.97 | 238,912 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,127 |
| Regions of France | 0 | - | 4.72 | 121,227 |
| France Immigration by Country | 0 | - | 4.70 | 76,681 |
| Departments of France | 0 | - | 4.93 | 54,457 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,669 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,016 |
| Geography of the French Empire | 0 | - | 4.45 | 27,155 |
| The French Revolution | 0 | - | 4.47 | 24,063 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,851 |
| History of France | 0 | - | 4.59 | 57,269 |
| Countries of Africa | 0 | - | 5.00 | 2,544,815 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,098 |
| African East Coast | 0 | - | 4.96 | 96,279 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,141 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,107 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,914 |
| History of Italy | 0 | - | 4.55 | 32,053 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,951 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,719 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,295 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,098 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,132 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,341 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,793 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,476 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,434 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,830 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,446 |
| African Island Countries | 0 | - | 4.96 | 101,870 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,826 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,413 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,429 |
| Celtic Nations | 0 | - | 4.69 | 46,996 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,535 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,216 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,974 |
| Counties of England | 0 | - | 4.97 | 798,837 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,149 |
| Famous Germans | 0 | - | 4.50 | 55,525 |
| German Groups of Things | 0 | - | 4.46 | 38,524 |
| Germany True or False? | 0 | - | 4.61 | 48,891 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,138 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,787 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,496 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,339 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,440 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,391 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 72,887 |
| The Only African Country ... | 0 | - | 4.99 | 129,270 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,206 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,063 |
| Countries Closest to Africa | 0 | - | 4.96 | 157,398 |
| African Countries That Have Been to the FIFA World Cup | 0 | - | 4.89 | 58,395 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,386 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,575 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,251 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,296 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,993 |
| History of Austria | 0 | - | 4.70 | 17,903 |
| Movies Set in France | 0 | - | 4.26 | 13,131 |
| French Inventions | 0 | - | 4.10 | 13,908 |
| France Multiple Choice | 0 | - | 4.39 | 40,773 |
| History of Paris | 0 | - | 4.24 | 13,659 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,150 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| The Portuguese Empire | 0 | - | 4.58 | 12,082 |
| American to British Word Translation | 0 | - | 4.14 | 139,306 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,945 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,151 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,146 |
| Champions League Winners | 0 | - | 4.92 | 1,009,820 |
| African Great Lakes | 0 | - | 4.82 | 66,511 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,595 |
| Name a Valid African Country | 0 | - | 4.98 | 154,354 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,852 |
| Tanzania Country Quiz | 0 | - | 4.90 | 33,128 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,587 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,429 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,907 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,360 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,619 |
| Countries Bordering France | 0 | - | 4.83 | 403,537 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,614 |
| England or Wales? | 0 | - | 4.94 | 45,794 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,987 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,644 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,674 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,870 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,591 |
| Slavic Languages | 0 | - | 4.67 | 54,466 |
| Famous French People | 0 | - | 4.07 | 35,846 |
| Word Chain - France | 0 | - | 4.38 | 42,840 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,664 |
| Italian Foods | 0 | - | 4.30 | 72,935 |
| The Mafia Quiz | 0 | - | 4.46 | 23,369 |
| History of The Netherlands | 0 | - | 4.46 | 17,482 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,515 |
| Canary Islands | 0 | - | 4.62 | 17,491 |
| Switzerland Immigration by Country | 0 | - | 4.68 | 29,830 |
| British Spellings | 0 | - | 4.06 | 99,507 |
| British Groups of Things | 0 | - | 4.25 | 82,908 |
| British Acronyms | 0 | - | 4.40 | 45,849 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,054 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,940 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,115 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,759 |
| Djibouti Country Quiz | 0 | - | 4.82 | 21,734 |
| Countries Closest to Ethiopia | 0 | - | 4.90 | 69,041 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,964 |
| Mauritius Country Quiz | 0 | - | 4.83 | 22,310 |
| Seychelles Country Quiz | 0 | - | 4.91 | 21,918 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,556 |
| Liberia Country Quiz | 0 | - | 4.85 | 21,933 |
| Mali Country Quiz | 0 | - | 4.83 | 24,851 |
| Eswatini Country Quiz | 0 | - | 4.85 | 20,862 |
| Botswana Country Quiz | 0 | - | 4.90 | 22,569 |
| Lesotho Country Quiz | 0 | - | 4.83 | 20,627 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,814 |
| Countries Closest to South Africa with Exceptions | 0 | - | 4.81 | 64,017 |
| Gabon Country Quiz | 0 | - | 4.83 | 18,594 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,631 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,631 |
| French Foods | 0 | - | 4.00 | 27,724 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,964 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,282 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,507 |
| Geography of Germany | 0 | - | 4.35 | 17,207 |
| History of Germany | 0 | - | 4.39 | 52,898 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,854 |
| Name that Greek Letter | 0 | - | 4.93 | 324,158 |
| History of Spain | 0 | - | 4.23 | 21,116 |
| Languages of Spain | 0 | - | 4.36 | 23,350 |
| British to American Word Translation | 0 | - | 3.74 | 255,169 |
| British Foods by Description | 0 | - | 3.94 | 48,340 |
| British and American Word Differences | 0 | - | 2.63 | 46,898 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,611 |
| Bridges of London | 0 | - | 4.17 | 10,119 |
| British Sport Trivia | 0 | - | 4.37 | 20,486 |
| Famous Welsh People | 0 | - | 4.31 | 11,569 |
| African Physical Geography | 0 | - | 4.51 | 31,743 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,591 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,543 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,817 |
| Sudan Country Quiz | 0 | - | 4.91 | 27,735 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,346 |
| History of Russia Quiz | 0 | - | 4.47 | 31,949 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,773 |
| Word Chain - Germany | 0 | - | 4.31 | 22,614 |
| The Trojan War | 0 | - | 4.83 | 39,797 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,236 |
| Word Chain - Italy | 0 | - | 4.07 | 23,179 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,126 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,649 |
| Roman Emperors | 0 | - | 4.95 | 120,388 |
| Famous Nordic People | 0 | - | 4.34 | 20,166 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,623 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,954 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,359 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,544 |
| People on Money - England | 0 | - | 4.29 | 16,623 |
| Name a Valid English City | 0 | - | 4.19 | 16,746 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,688 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,002 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,417 |
| Ten Highest HDI Countries in Africa | 0 | - | 4.70 | 67,861 |
| Australian Capitals | 0 | - | 4.92 | 62,754 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,925 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,331 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,724 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,279 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,957 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,279 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 97,907 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,180 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,988 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,264 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,809 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,906 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,353 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,009 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,299 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,292 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,866 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,545 |
| Capitals of French Regions | 0 | - | 4.45 | 16,108 |
| Kings of France Quiz | 0 | - | 4.20 | 32,816 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,022 |
