| European Countries by First 2 Letters | 0 | - | 4.95 | 529,129 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,661 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,053 |
| Official European Union Languages | 0 | - | 4.97 | 238,291 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,717 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,821 |
| Slavic Languages | 0 | - | 4.68 | 54,309 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,928 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,791 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,710 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,375 |
| Celtic Nations | 0 | - | 4.69 | 46,917 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,300 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,196 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,038 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,314 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,927 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,135 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,007 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,440 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,094 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,826 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,736 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,928 |
| States of Germany | 0 | - | 4.96 | 152,170 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,950 |
| Regions of Italy | 0 | - | 4.92 | 75,706 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,022 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,770 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,102 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,679 |
| Champions League Winners | 0 | - | 4.92 | 1,005,298 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,889 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,499 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,881 |
| Departments of France | 0 | - | 4.93 | 53,960 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,530 |
| England or Wales? | 0 | - | 4.94 | 45,634 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,086 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,580 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,648 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,583 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,708 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,588 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,439 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,391 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,745 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,636 |
| Name that Greek Letter | 0 | - | 4.93 | 323,250 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,010 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,951 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,111 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,964 |
| The Trojan War | 0 | - | 4.83 | 39,674 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,661 |
| History of Italy | 0 | - | 4.55 | 31,955 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,707 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,464 |
| Roman Emperors | 0 | - | 4.95 | 119,785 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,636 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,196 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,850 |
| Australian Capitals | 0 | - | 4.92 | 62,709 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,639 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,740 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,460 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,178 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,233 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,288 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,323 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,632 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,539 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,859 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,231 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,539 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,235 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,899 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,188 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,208 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,439 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,396 |
| Capitals of French Regions | 0 | - | 4.45 | 16,054 |
| Regions of France | 0 | - | 4.75 | 120,573 |
| France Immigration by Country | 0 | - | 4.70 | 76,452 |
| Famous Germans | 0 | - | 4.50 | 55,235 |
| German Groups of Things | 0 | - | 4.46 | 38,453 |
| Capitals of German States | 0 | - | 4.74 | 28,941 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,301 |
| Germany True or False? | 0 | - | 4.61 | 48,764 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,935 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,230 |
| Ancient Greek Words | 0 | - | 4.93 | 111,451 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,722 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,386 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,293 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,245 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,143 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,425 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,901 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,552 |
| Africa Map Quiz | 0 | - | 5.00 | 2,115,988 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,297 |
| European Physical Geography | 0 | - | 4.26 | 33,489 |
| Geography of Russia | 0 | - | 4.57 | 21,518 |
| History of Austria | 0 | - | 4.70 | 17,849 |
| Geography of the French Empire | 0 | - | 4.45 | 27,040 |
| The French Revolution | 0 | - | 4.46 | 23,920 |
| France Multiple Choice | 0 | - | 4.39 | 40,722 |
| History of France | 0 | - | 4.59 | 56,910 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,646 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,054 |
| The Vikings! | 0 | - | 4.46 | 28,333 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,083 |
| The Portuguese Empire | 0 | - | 4.58 | 12,056 |
| American to British Word Translation | 0 | - | 4.14 | 138,879 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,873 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,614 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,631 |
| Champions League Top 4 | 0 | - | 4.77 | 136,091 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,473 |
| Asia Map Quiz | 0 | - | 4.99 | 915,540 |
| Countries of Africa | 0 | - | 5.00 | 2,532,865 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,721 |
| African East Coast | 0 | - | 4.96 | 95,928 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,744 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,568 |
| Australia Map Quiz | 0 | - | 4.95 | 344,126 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,417 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,964 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,615 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,732 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,185 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,336 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,657 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,827 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,475 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,315 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,962 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,571 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,808 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,638 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,067 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,001 |
| European Geography A-Z | 0 | - | 4.29 | 49,224 |
| Country Codes of Europe | 0 | - | 3.43 | 13,702 |
| The Only European Country ... | 0 | - | 4.91 | 216,262 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,926 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,095 |
| Austria... or Australia? | 0 | - | 4.68 | 104,273 |
| Famous French People | 0 | - | 4.06 | 35,317 |
| Presidents of France | 0 | - | 4.25 | 24,063 |
| Word Chain - France | 0 | - | 4.38 | 42,762 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,962 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,890 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,640 |
| Italian Foods | 0 | - | 4.30 | 72,708 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,282 |
| The Mafia Quiz | 0 | - | 4.46 | 23,312 |
| History of The Netherlands | 0 | - | 4.46 | 17,422 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,018 |
| Canary Islands | 0 | - | 4.62 | 17,470 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,644 |
| British Spellings | 0 | - | 4.06 | 99,425 |
| British Groups of Things | 0 | - | 4.25 | 82,850 |
| British Acronyms | 0 | - | 4.40 | 45,778 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,027 |
| British Monopoly Board | 0 | - | 4.52 | 41,152 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,729 |
| Geography of Scotland | 0 | - | 4.63 | 21,604 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,802 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,381,930 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,926 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,102 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,796 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,490 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,109 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,174 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,326 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,823 |
| African Island Countries | 0 | - | 4.96 | 101,515 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,227 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,175 |
| Australian States and Territories | 0 | - | 4.96 | 141,805 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,255 |
| Australia True or False | 0 | - | 4.87 | 56,811 |
| Flags of North and South America | 0 | - | 4.99 | 372,439 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,556 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,150 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,543 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,442 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,676 |
| North America Map Quiz | 0 | - | 4.98 | 248,096 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,683 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,851 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,630 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,081 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,829 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,757 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,327,124 |
