| European Countries by First 2 Letters | 0 | - | 4.95 | 527,184 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,481 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,764 |
| Official European Union Languages | 0 | - | 4.97 | 237,377 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,159 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,029 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,456 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,275 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,789 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,726 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,677 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,583 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,633 |
| Italian Foods | 0 | - | 4.31 | 72,352 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,278 |
| Celtic Nations | 0 | - | 4.69 | 46,854 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,080 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,009 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,887 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,949 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,139 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,676 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 351,635 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,072 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,714 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,023 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,060 |
| German Groups of Things | 0 | - | 4.46 | 38,355 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,098 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,568 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,536 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,450 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,249 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,540 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,123 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,847 |
| States of Germany | 0 | - | 4.96 | 150,749 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,235 |
| Regions of Italy | 0 | - | 4.92 | 75,008 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,008 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,861 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,575 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,589 |
| Champions League Winners | 0 | - | 4.92 | 999,163 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,623 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,451 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,012 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,387 |
| Name a Valid African Country | 0 | - | 4.98 | 153,237 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,535 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,487 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,465 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,617 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,167 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,588 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,940 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,638 |
| Slavic Languages | 0 | - | 4.68 | 54,096 |
| Departments of France | 0 | - | 4.93 | 53,106 |
| Word Chain - France | 0 | - | 4.38 | 42,641 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,495 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,411 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,306 |
| British Groups of Things | 0 | - | 4.25 | 82,741 |
| British to American Food Translation | 0 | - | 3.38 | 51,891 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,980 |
| England or Wales? | 0 | - | 4.94 | 45,434 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,967 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,055 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,851 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,303 |
| Foods by Country of Origin #1 | 0 | - | 4.42 | 335,495 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,993 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,028 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,280 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,887 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,427 |
| History of Russia Quiz | 0 | - | 4.49 | 31,825 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,615 |
| French Foods | 0 | - | 4.00 | 27,618 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,593 |
| Name that Greek Letter | 0 | - | 4.94 | 322,198 |
| History of Italy | 0 | - | 4.55 | 31,870 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,347 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,533 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,510 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,051 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,517 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,951 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,489 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.53 | 52,623 |
| Fruit and Vegetable Emojis | 0 | - | 4.43 | 79,701 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,151 |
| Countries by Milk Production | 0 | - | 4.54 | 43,720 |
| American Foods | 0 | - | 3.66 | 39,313 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,933 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,031 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,502 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,548 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,944 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,125 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,129 |
| Capitals of French Regions | 0 | - | 4.45 | 16,009 |
| Capitals of German States | 0 | - | 4.74 | 28,872 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,164 |
| Word Chain - Germany | 0 | - | 4.31 | 22,506 |
| The Trojan War | 0 | - | 4.83 | 39,513 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,950 |
| Word Chain - Italy | 0 | - | 4.07 | 23,122 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,192 |
| Roman Emperors | 0 | - | 4.95 | 118,881 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,318 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,861 |
| Geography of Spain | 0 | - | 4.59 | 22,002 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,267 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,869 |
| Name a Valid English City | 0 | - | 4.19 | 16,657 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,396 |
| Countries That Eat the Most Pork | 0 | - | 4.18 | 39,162 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,340 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,849 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,272 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,961 |
| Australian Capitals | 0 | - | 4.92 | 62,630 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,597 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,060 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,028 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,908 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,377 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,184 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,973 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,745 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,120 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,495 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,723 |
| Regions of France | 0 | - | 4.78 | 119,683 |
| France Immigration by Country | 0 | - | 4.72 | 76,099 |
| Famous Germans | 0 | - | 4.50 | 54,760 |
| Germany True or False? | 0 | - | 4.61 | 48,615 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,631 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,617 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,748 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,972 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,462 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,110 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,874 |
| Asia Map Quiz | 0 | - | 4.99 | 909,349 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,370 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,388 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,179 |
| Countries that Produce the Most Cheese | 0 | - | 4.77 | 63,125 |
| Top 15 Countries with the Most Starbucks | 0 | - | 4.51 | 80,635 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,095 |
| African East Coast | 0 | - | 4.96 | 95,352 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,214 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,060 |
| Word Chain - Australia | 0 | - | 4.37 | 38,050 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,350 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,729 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,398 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,590 |
| European Physical Geography | 0 | - | 4.26 | 33,407 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,047 |
| Country Codes of Europe | 0 | - | 3.46 | 13,666 |
| The Only European Country ... | 0 | - | 4.91 | 214,683 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,040 |
| Geography of Russia | 0 | - | 4.57 | 21,458 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,827 |
| History of Austria | 0 | - | 4.70 | 17,780 |
| Presidents of France | 0 | - | 4.25 | 23,949 |
| Geography of the French Empire | 0 | - | 4.45 | 26,975 |
| The French Revolution | 0 | - | 4.46 | 23,840 |
| France Multiple Choice | 0 | - | 4.38 | 40,667 |
| History of France | 0 | - | 4.59 | 56,441 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,411 |
| Ancient Greek Words | 0 | - | 4.93 | 110,960 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,750 |
| The Vikings! | 0 | - | 4.46 | 28,272 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,777 |
| The Portuguese Empire | 0 | - | 4.58 | 12,011 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,980 |
| American to British Word Translation | 0 | - | 4.13 | 137,623 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,779 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,367 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,433 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,681 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,853 |
| Champions League Top 4 | 0 | - | 4.77 | 134,543 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,972 |
| Sushi Translation | 0 | - | 4.08 | 13,914 |
| Cities with the Most Michelin Stars | 0 | - | 4.33 | 24,512 |
| Countries that Eat the Most Meat | 0 | - | 4.23 | 42,381 |
| Countries of Africa | 0 | - | 5.00 | 2,516,049 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,002 |
| Australia Map Quiz | 0 | - | 4.94 | 342,967 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,651 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,236 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,502 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,024 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,853 |
