| European Countries by First 2 Letters | 0 | - | 4.96 | 509,227 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 65,097 |
| Official European Union Languages | 0 | - | 4.98 | 227,870 |
| European Countries in their Native Language | 0 | - | 4.99 | 151,086 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 409,137 |
| Celtic Nations | 0 | - | 4.74 | 45,986 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,950 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 40,670 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,124 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,297 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 83,951 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 298,442 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 144,078 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,003 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,339 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,319 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,547 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 257,813 |
| Catholic Countries in Europe | 0 | - | 4.83 | 89,803 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 65,629 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 73,793 |
| Federal Subjects of Russia | 0 | - | 4.93 | 129,508 |
| States of Germany | 0 | - | 4.94 | 137,977 |
| Germany Immigration by Country | 0 | - | 4.86 | 75,560 |
| Counties of Ireland | 0 | - | 4.89 | 175,611 |
| Regions of Italy | 0 | - | 4.91 | 67,914 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 35,001 |
| Regions of Spain Quiz | 0 | - | 4.89 | 104,561 |
| Cantons of Switzerland | 0 | - | 4.97 | 45,309 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 309,322 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,182 |
| Champions League Winners | 0 | - | 4.91 | 947,129 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,211 |
| Word Scramble - European Countries | 0 | - | 4.74 | 135,519 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 103,323 |
| Slavic Languages | 0 | - | 4.65 | 51,720 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,564 |
| Spanish Immigration by Country | 0 | - | 4.63 | 54,058 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 217,466 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 263,006 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 155,480 |
| Departments of France | 0 | - | 4.88 | 44,611 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,146 |
| England or Wales? | 0 | - | 4.94 | 43,252 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 120,704 |
| Australian Capitals | 0 | - | 4.92 | 61,865 |
| Europe Map Quiz | 0 | - | 5.00 | 4,550,210 |
| Country Codes of Europe | 0 | - | 3.40 | 13,264 |
| Top European Languages on a Map | 0 | - | 4.78 | 125,909 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 61,288 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,566 |
| French Geography Quiz #1 | 0 | - | 4.87 | 33,090 |
| Capitals of French Regions | 0 | - | 4.42 | 15,491 |
| Capitals of German States | 0 | - | 4.73 | 28,180 |
| Chancellors of Germany, 1949–present | 0 | - | 4.57 | 21,999 |
| Italy Multiple Choice | 0 | - | 4.74 | 99,512 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,557 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,169 |
| Africa Map Quiz | 0 | - | 5.00 | 2,033,207 |
| Oceania Map Quiz | 0 | - | 4.98 | 604,431 |
| European Geography By Letter - A | 0 | - | 4.62 | 128,672 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,457 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,732 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,484 |
| European Geography By Letter - L | 0 | - | 4.52 | 108,915 |
| European Geography By Letter - M | 0 | - | 4.53 | 118,014 |
| European Geography By Letter - P | 0 | - | 4.79 | 93,293 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,753 |
| European Geography By Letter - R | 0 | - | 4.41 | 90,183 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,542 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,395 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 69,947 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,480 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,692 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 96,838 |
| Regions of France | 0 | - | 4.70 | 111,073 |
| France Immigration by Country | 0 | - | 4.77 | 73,278 |
| Famous Germans | 0 | - | 4.44 | 39,949 |
| German Groups of Things | 0 | - | 4.46 | 37,412 |
| Germany True or False? | 0 | - | 4.63 | 46,809 |
| Largest Islands of Greece | 0 | - | 4.58 | 44,386 |
| The Trojan War | 0 | - | 4.81 | 37,792 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 614,786 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 102,712 |
| Famous Italians | 0 | - | 4.41 | 70,556 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 75,064 |
| Roman Emperors | 0 | - | 4.96 | 109,444 |
| Provinces of the Netherlands | 0 | - | 4.75 | 37,152 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,155 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 97,789 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,398,623 |
| Asia Map Quiz | 0 | - | 4.99 | 855,081 |
| African East Coast | 0 | - | 4.96 | 90,292 |
| Western Africa Map Quiz | 0 | - | 4.97 | 67,987 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 45,705 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,704 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 89,415 |
| Countries That Use the Euro | 0 | - | 4.93 | 75,736 |
| European Physical Geography | 0 | - | 4.24 | 32,759 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,318 |
| The Only European Country ... | 0 | - | 4.92 | 197,673 |
| History of Russia Quiz | 0 | - | 4.48 | 31,091 |
| Geography of Russia | 0 | - | 4.56 | 20,887 |
| History of Austria | 0 | - | 4.69 | 17,145 |
| Presidents of France | 0 | - | 4.24 | 22,175 |
| Geography of the French Empire | 0 | - | 4.51 | 26,184 |
| The French Revolution | 0 | - | 4.45 | 22,843 |
| France Multiple Choice | 0 | - | 4.37 | 39,916 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,812 |
| Name that Greek Letter | 0 | - | 4.94 | 310,825 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,250 |
| History of Italy | 0 | - | 4.52 | 31,028 |
| The Vikings! | 0 | - | 4.46 | 27,779 |
| The Portuguese Empire | 0 | - | 4.54 | 11,699 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,528 |
| Languages of the United Kingdom | 0 | - | 4.13 | 39,782 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 89,529 |
| Countries of Africa | 0 | - | 5.00 | 2,353,958 |
| Australia Map Quiz | 0 | - | 4.94 | 333,460 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 350,802 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,849 |
| History of France Quiz | 0 | - | 4.56 | 41,674 |
| Olympian Gods Quiz | 0 | - | 4.96 | 471,516 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,904 |
| United Kingdom A-Z | 0 | - | 4.53 | 84,641 |
| Champions League Top 4 | 0 | - | 4.62 | 122,222 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,339,086 |
| 10 African Countries with the Most Tourists | 0 | - | 4.40 | 57,820 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 25,292 |
| United States Map Quiz | 0 | - | 4.98 | 4,051,394 |
| European Geography By Letter - E | 0 | - | 4.22 | 109,172 |
| European Geography By Letter - F | 0 | - | 4.18 | 88,806 |
| European Geography By Letter - H | 0 | - | 4.29 | 92,312 |
| European Geography By Letter - G | 0 | - | 4.26 | 98,514 |
| European Geography By Letter - I | 0 | - | 4.11 | 92,004 |
| European Geography By Letter - K | 0 | - | 4.15 | 66,864 |
| European Geography By Letter - O | 0 | - | 4.29 | 59,897 |
| European Geography by Letter - W | 0 | - | 4.21 | 80,628 |
| European Geography By Letter - T | 0 | - | 4.40 | 73,098 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,000 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 48,713 |
| European Geography A-Z | 0 | - | 4.31 | 47,488 |
| Word Chain - France | 0 | - | 4.37 | 41,582 |
| Ancient Greek Words | 0 | - | 4.92 | 105,304 |
| Italian Foods | 0 | - | 4.30 | 68,880 |
| History of The Netherlands | 0 | - | 4.45 | 16,561 |
| Famous Nordic People | 0 | - | 4.41 | 10,958 |
| Canary Islands | 0 | - | 4.61 | 17,011 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 26,130 |
| British Spellings Quiz | 0 | - | 4.07 | 97,655 |
| British Groups of Things | 0 | - | 4.25 | 81,918 |
| British Acronyms | 0 | - | 4.39 | 44,714 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,401 |
| Beatles Songs Quiz | 0 | - | 4.96 | 223,127 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 283,229 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 95,492 |
| Flags of Africa Quiz | 0 | - | 5.00 | 425,402 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 208,344 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 111,281 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 154,716 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 128,799 |
| Top African Languages on a Map | 0 | - | 4.92 | 64,537 |
| African Island Countries | 0 | - | 4.96 | 95,908 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 234,034 |
| Australian States and Territories | 0 | - | 4.96 | 135,762 |
| Australian Immigration by Country | 0 | - | 4.82 | 75,484 |
| Australia Country Quiz | 0 | - | 4.43 | 60,061 |
| Australia True or False | 0 | - | 4.87 | 54,627 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 334,597 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 110,212 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 138,371 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 119,253 |
| South America Map Quiz | 0 | - | 5.00 | 1,491,016 |
| Countries of North America Quiz | 0 | - | 5.00 | 952,668 |
| North America Map Quiz | 0 | - | 4.98 | 224,015 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,135 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 609,817 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,500 |
| Straight Shot to Antarctica | 0 | - | 4.92 | 40,321 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,132,078 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,268,256 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 185,749 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 145,419 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 203,297 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 82,864 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 59,973 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 82,563 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 121,816 |
| Slavic Countries | 0 | - | 4.96 | 106,488 |
| Austria... or Australia? | 0 | - | 4.73 | 101,520 |
| Geography of Germany | 0 | - | 4.37 | 16,460 |
| Ancient Greek Trivia | 0 | - | 4.56 | 65,279 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 418,108 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,713 |
| History of Spain Quiz | 0 | - | 4.29 | 20,446 |
| Languages of Spain | 0 | - | 4.38 | 22,419 |
| British to American Word Translation | 0 | - | 3.73 | 238,797 |
| American to British Word Translation | 0 | - | 4.00 | 113,283 |
| British Foods | 0 | - | 3.88 | 47,739 |
| British and American Word Differences | 0 | - | 2.68 | 45,117 |
