| European Countries by First 2 Letters | 0 | - | 4.95 | 532,427 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,606 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,705 |
| Official European Union Languages | 0 | - | 4.97 | 239,740 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,611 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,797 |
| Slavic Languages | 0 | - | 4.68 | 54,683 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,304 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,125 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,051 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,502 |
| Celtic Nations | 0 | - | 4.61 | 47,094 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,869 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,005 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,673 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,653 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,685 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,436 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,504 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,812 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,748 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,742 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,681 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,958 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,424 |
| States of Germany | 0 | - | 4.95 | 154,421 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,674 |
| Regions of Italy | 0 | - | 4.92 | 77,029 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,785 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,293 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,742 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,839 |
| Champions League Winners | 0 | - | 4.92 | 1,015,835 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,741 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,719 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,304 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 121,572 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,774 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,855 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,864 |
| Departments of France | 0 | - | 4.93 | 55,124 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,734 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,732 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,622 |
| England or Wales? | 0 | - | 4.94 | 45,959 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,075 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,927 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,078 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,648 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,323 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,822 |
| History of Russia Quiz | 0 | - | 4.47 | 32,002 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,738 |
| Name that Greek Letter | 0 | - | 4.93 | 324,930 |
| History of Italy | 0 | - | 4.55 | 32,142 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,348 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,816 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,419 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,273 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,530 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,732 |
| Capitals of French Regions | 0 | - | 4.45 | 16,178 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,688 |
| Capitals of German States | 0 | - | 4.74 | 29,070 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,534 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,544 |
| The Trojan War | 0 | - | 4.83 | 39,979 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,916 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,578 |
| Roman Emperors | 0 | - | 4.95 | 121,169 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,205 |
| Australian Capitals | 0 | - | 4.92 | 62,828 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,091 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,438 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,820 |
| European Geography By Letter - D | 0 | - | 4.50 | 116,045 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,991 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,431 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,070 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,543 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,981 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,528 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,512 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,171 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,452 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,423 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,384 |
| Regions of France | 0 | - | 4.70 | 122,060 |
| France Immigration by Country | 0 | - | 4.70 | 76,922 |
| Famous Germans | 0 | - | 4.50 | 55,782 |
| German Groups of Things | 0 | - | 4.47 | 38,630 |
| Germany True or False? | 0 | - | 4.61 | 49,018 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,457 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,655 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,354 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,743 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,404 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,797 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,340 |
| Asia Map Quiz | 0 | - | 4.99 | 924,934 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,382 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,444 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,887 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,906 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,740 |
| European Physical Geography | 0 | - | 4.26 | 33,590 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,065 |
| Country Codes of Europe | 0 | - | 3.43 | 13,820 |
| The Only European Country ... | 0 | - | 4.91 | 218,930 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,472 |
| Geography of Russia | 0 | - | 4.57 | 21,597 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Presidents of France | 0 | - | 4.25 | 24,334 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,145 |
| France Multiple Choice | 0 | - | 4.39 | 40,840 |
| History of France | 0 | - | 4.61 | 57,593 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,558 |
| Ancient Greek Words | 0 | - | 4.93 | 112,435 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,496 |
| The Vikings! | 0 | - | 4.46 | 28,403 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,378 |
| The Portuguese Empire | 0 | - | 4.58 | 12,104 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,117 |
| American to British Word Translation | 0 | - | 4.14 | 139,673 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,055 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,357 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,806 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,275 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,774 |
| Champions League Top 4 | 0 | - | 4.78 | 138,974 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,917 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,830 |
| African East Coast | 0 | - | 4.96 | 96,747 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,599 |
| Australia Map Quiz | 0 | - | 4.95 | 346,115 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,945 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,185 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,111 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,406 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,133 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,891 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,515 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,158 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,537 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,536 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,887 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,852 |
| European Geography A-Z | 0 | - | 4.29 | 49,475 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,144 |
| Austria... or Australia? | 0 | - | 4.68 | 104,758 |
| Famous French People | 0 | - | 4.07 | 36,091 |
| Word Chain - France | 0 | - | 4.38 | 42,932 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,229 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,040 |
| Italian Foods | 0 | - | 4.30 | 73,252 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,643 |
| The Mafia Quiz | 0 | - | 4.46 | 23,436 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,705 |
| History of The Netherlands | 0 | - | 4.46 | 17,550 |
| Canary Islands | 0 | - | 4.62 | 17,525 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,064 |
| British Spellings | 0 | - | 4.06 | 99,597 |
| British Groups of Things | 0 | - | 4.26 | 83,008 |
| British Acronyms | 0 | - | 4.40 | 45,935 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,103 |
| British Monopoly Board | 0 | - | 4.52 | 41,265 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,101 |
| Geography of Scotland | 0 | - | 4.63 | 21,740 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,185 |
| Countries of Africa | 0 | - | 5.00 | 2,559,038 |
| Australian States and Territories | 0 | - | 4.96 | 142,836 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,497 |
| Australia True or False | 0 | - | 4.87 | 57,137 |
| Flags of North and South America | 0 | - | 4.99 | 376,827 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,947 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,772 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,639 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,464 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,751 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,141 |
| North America Map Quiz | 0 | - | 4.98 | 251,954 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,972 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,072 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,519 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,552 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,164 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,561 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,456 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,484 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,025 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,697 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,750 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,842 |
| Seas of Europe | 0 | - | 4.37 | 84,893 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,347 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,155 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,770 |
| Slavic Countries | 0 | - | 4.96 | 112,351 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,669 |
