| European Countries by First 2 Letters | 0 | - | 4.95 | 532,437 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,622 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,686 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,436 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,840 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,706 |
| Official European Union Languages | 0 | - | 4.97 | 239,748 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,611 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,803 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,736 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,622 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,304 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,503 |
| Celtic Nations | 0 | - | 4.61 | 47,094 |
| Capitals of French Regions | 0 | - | 4.45 | 16,178 |
| Capitals of German States | 0 | - | 4.74 | 29,071 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,534 |
| History of Italy | 0 | - | 4.55 | 32,142 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,349 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,816 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,420 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,565 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,007 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,679 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,666 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,521 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,825 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,748 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,743 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,696 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,961 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,430 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Geography of the French Empire | 0 | - | 4.45 | 27,216 |
| The French Revolution | 0 | - | 4.47 | 24,145 |
| France Multiple Choice | 0 | - | 4.39 | 40,841 |
| States of Germany | 0 | - | 4.95 | 154,427 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,558 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,675 |
| Regions of Italy | 0 | - | 4.92 | 77,034 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,786 |
| The Vikings! | 0 | - | 4.46 | 28,403 |
| The Portuguese Empire | 0 | - | 4.58 | 12,104 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,296 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,744 |
| American to British Word Translation | 0 | - | 4.14 | 139,677 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,055 |
| Champions League Winners | 0 | - | 4.92 | 1,015,851 |
| Presidents of France | 0 | - | 4.25 | 24,334 |
| History of France | 0 | - | 4.61 | 57,593 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,117 |
| 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 | 142,306 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 121,607 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,785 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,860 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,869 |
| Slavic Languages | 0 | - | 4.68 | 54,685 |
| Departments of France | 0 | - | 4.93 | 55,124 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,732 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,065 |
| England or Wales? | 0 | - | 4.94 | 45,959 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,080 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,928 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,079 |
| Geography of Germany | 0 | - | 4.35 | 17,281 |
| History of Spain | 0 | - | 4.23 | 21,164 |
| Languages of Spain | 0 | - | 4.36 | 23,434 |
| British to American Word Translation | 0 | - | 3.74 | 255,339 |
| British Foods by Description | 0 | - | 3.94 | 48,388 |
| British and American Word Differences | 0 | - | 2.63 | 46,928 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,217 |
| Bridges of London | 0 | - | 4.17 | 10,143 |
| British Sport Trivia | 0 | - | 4.39 | 20,528 |
| Famous Welsh People | 0 | - | 4.34 | 11,683 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,657 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,338 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,824 |
| History of Russia Quiz | 0 | - | 4.47 | 32,002 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,869 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,759 |
| Name that Greek Letter | 0 | - | 4.93 | 324,944 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,092 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,347 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,530 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,734 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,688 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,545 |
| The Trojan War | 0 | - | 4.83 | 39,980 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,923 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,580 |
| Roman Emperors | 0 | - | 4.95 | 121,171 |
| British Noble Ranks | 0 | - | 3.85 | 20,494 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,238 |
| Australian Capitals | 0 | - | 4.92 | 62,828 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,096 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,445 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,835 |
| European Geography By Letter - D | 0 | - | 4.48 | 116,218 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,000 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,442 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,079 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,556 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,010 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,543 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,514 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,171 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,453 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,423 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,397 |
| Regions of France | 0 | - | 4.70 | 122,062 |
| France Immigration by Country | 0 | - | 4.70 | 76,923 |
| Famous Germans | 0 | - | 4.50 | 55,782 |
| German Groups of Things | 0 | - | 4.47 | 38,631 |
| Germany True or False? | 0 | - | 4.61 | 49,018 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,457 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,667 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,508 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,354 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,744 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,404 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,799 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,356 |
| Asia Map Quiz | 0 | - | 4.99 | 924,951 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,407 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,444 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,894 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,906 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,744 |
| European Physical Geography | 0 | - | 4.26 | 33,590 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,069 |
| Country Codes of Europe | 0 | - | 3.45 | 13,823 |
| The Only European Country ... | 0 | - | 4.91 | 218,936 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,477 |
| Geography of Russia | 0 | - | 4.57 | 21,597 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,126 |
| Ancient Greek Words | 0 | - | 4.93 | 112,435 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,496 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,378 |
| 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 | 238,284 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,774 |
| Champions League Top 4 | 0 | - | 4.78 | 138,984 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,919 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,831 |
| African East Coast | 0 | - | 4.96 | 96,750 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,606 |
| Australia Map Quiz | 0 | - | 4.95 | 346,129 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,026 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,188 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,121 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,415 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,144 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,899 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,529 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,167 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,545 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,546 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,887 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,862 |
| European Geography A-Z | 0 | - | 4.29 | 49,476 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,149 |
| Austria... or Australia? | 0 | - | 4.67 | 104,759 |
| Famous French People | 0 | - | 4.07 | 36,093 |
| Word Chain - France | 0 | - | 4.38 | 42,933 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,229 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,040 |
| Italian Foods | 0 | - | 4.30 | 73,254 |
| 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 | 439,714 |
| History of The Netherlands | 0 | - | 4.46 | 17,550 |
| Canary Islands | 0 | - | 4.62 | 17,525 |
| British Spellings | 0 | - | 4.06 | 99,599 |
| British Groups of Things | 0 | - | 4.26 | 83,008 |
| British Acronyms | 0 | - | 4.40 | 45,935 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,105 |
| 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 | 1,387,203 |
| Countries of Africa | 0 | - | 5.00 | 2,559,127 |
| Australian States and Territories | 0 | - | 4.96 | 142,843 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,498 |
| Australia True or False | 0 | - | 4.87 | 57,141 |
| Flags of North and South America | 0 | - | 4.99 | 376,851 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,948 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,773 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,645 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,498 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,751 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,176 |
| North America Map Quiz | 0 | - | 4.98 | 251,975 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,974 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,094 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,523 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,553 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,164 |
