| European Countries by First 2 Letters | 0 | - | 4.96 | 506,325 |
| Count to 10 in Europe: Pro | 0 | - | 4.84 | 64,537 |
| Official European Union Languages | 0 | - | 4.98 | 226,096 |
| European Countries in their Native Language | 0 | - | 4.99 | 150,242 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 406,321 |
| Slavic Languages | 0 | - | 4.68 | 51,310 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,439 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 40,375 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 39,853 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,070 |
| Celtic Nations | 0 | - | 4.75 | 45,821 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,383 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 83,424 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 296,850 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 141,194 |
| Germany Multiple Choice | 0 | - | 4.83 | 51,644 |
| Catholic Countries in Europe | 0 | - | 4.82 | 88,989 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,007 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 72,697 |
| Federal Subjects of Russia | 0 | - | 4.93 | 127,442 |
| States of Germany | 0 | - | 4.94 | 135,909 |
| Germany Immigration by Country | 0 | - | 4.86 | 74,819 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 28,993 |
| Counties of Ireland | 0 | - | 4.88 | 173,431 |
| Regions of Italy | 0 | - | 4.90 | 66,736 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 34,556 |
| Regions of Spain Quiz | 0 | - | 4.89 | 103,308 |
| Cantons of Switzerland | 0 | - | 4.97 | 44,597 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,356 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 304,571 |
| Champions League Winners | 0 | - | 4.91 | 937,619 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,727 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,001 |
| Word Scramble - European Countries | 0 | - | 4.73 | 134,386 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 101,011 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 214,905 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 260,924 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 153,728 |
| Departments of France | 0 | - | 4.88 | 43,021 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,424 |
| Countries Surrounding Rome | 0 | - | 4.96 | 47,975 |
| Spanish Immigration by Country | 0 | - | 4.62 | 53,800 |
| England or Wales? | 0 | - | 4.94 | 42,903 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 119,121 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 256,302 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 60,615 |
| French Geography Quiz #1 | 0 | - | 4.87 | 32,819 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 266,232 |
| Top European Languages on a Map | 0 | - | 4.77 | 124,920 |
| France Multiple Choice | 0 | - | 4.41 | 39,747 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 610,537 |
| Italy Multiple Choice | 0 | - | 4.71 | 98,903 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,391 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,004 |
| Europe Map Quiz | 0 | - | 5.00 | 4,513,374 |
| Capitals of French Regions | 0 | - | 4.42 | 15,385 |
| Capitals of German States | 0 | - | 4.70 | 28,049 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 21,781 |
| The Trojan War | 0 | - | 4.81 | 37,461 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.86 | 101,381 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 74,499 |
| Roman Emperors | 0 | - | 4.96 | 108,210 |
| Africa Map Quiz | 0 | - | 5.00 | 2,020,549 |
| Oceania Map Quiz | 0 | - | 4.98 | 599,301 |
| Australian Capitals | 0 | - | 4.92 | 61,775 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,253 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,094 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,394 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,132 |
| European Geography By Letter - L | 0 | - | 4.51 | 108,319 |
| European Geography By Letter - M | 0 | - | 4.53 | 117,656 |
| European Geography By Letter - P | 0 | - | 4.79 | 92,989 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,487 |
| European Geography By Letter - R | 0 | - | 4.41 | 89,910 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,306 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,080 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 69,627 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,201 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,465 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 96,563 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 65,250 |
| Regions of France | 0 | - | 4.70 | 109,372 |
| France Immigration by Country | 0 | - | 4.78 | 72,722 |
| Famous Germans | 0 | - | 4.42 | 38,261 |
| German Groups of Things | 0 | - | 4.45 | 37,234 |
| Germany True or False? | 0 | - | 4.62 | 46,495 |
| Largest Islands of Greece | 0 | - | 4.58 | 43,823 |
| Olympian Gods Quiz | 0 | - | 4.96 | 469,540 |
| Name that Greek Letter | 0 | - | 4.94 | 309,015 |
| Provinces of the Netherlands | 0 | - | 4.71 | 36,631 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 46,987 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 96,329 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,390,035 |
| Asia Map Quiz | 0 | - | 4.99 | 844,737 |
| African East Coast | 0 | - | 4.96 | 89,429 |
| Western Africa Map Quiz | 0 | - | 4.97 | 67,083 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 44,955 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 200,969 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 89,100 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,759 |
| European Physical Geography | 0 | - | 4.23 | 32,655 |
| 10 Easternmost Countries in Europe | 0 | - | 4.88 | 102,622 |
| Country Codes of Europe | 0 | - | 3.40 | 13,148 |
| The Only European Country ... | 0 | - | 4.92 | 194,917 |
| History of Russia Quiz | 0 | - | 4.48 | 30,951 |
| Geography of Russia | 0 | - | 4.56 | 20,788 |
| History of Austria | 0 | - | 4.69 | 17,040 |
| Presidents of France | 0 | - | 4.24 | 21,871 |
| Geography of the French Empire | 0 | - | 4.51 | 26,086 |
| The French Revolution | 0 | - | 4.45 | 22,696 |
| History of France Quiz | 0 | - | 4.56 | 41,439 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,698 |
| Ancient Greek Words | 0 | - | 4.92 | 104,379 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,107 |
| History of Italy | 0 | - | 4.50 | 30,897 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,211 |
| The Vikings! | 0 | - | 4.45 | 27,704 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,570 |
| The Portuguese Empire | 0 | - | 4.54 | 11,648 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,441 |
| Languages of the United Kingdom | 0 | - | 4.13 | 39,565 |
| United Kingdom A-Z | 0 | - | 4.53 | 83,962 |
| Beatles Songs Quiz | 0 | - | 4.96 | 221,519 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 281,983 |
| Champions League Top 4 | 0 | - | 4.69 | 120,132 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 88,233 |
| Countries of Africa | 0 | - | 5.00 | 2,326,152 |
| Australia Map Quiz | 0 | - | 4.94 | 331,960 |
| United States Map Quiz | 0 | - | 4.98 | 4,032,954 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 348,815 |
| European Geography By Letter - E | 0 | - | 4.22 | 108,855 |
| European Geography By Letter - F | 0 | - | 4.16 | 88,518 |
| European Geography By Letter - H | 0 | - | 4.29 | 91,973 |
| European Geography By Letter - G | 0 | - | 4.25 | 98,262 |
| European Geography By Letter - I | 0 | - | 4.10 | 91,768 |
| European Geography By Letter - K | 0 | - | 4.14 | 66,618 |
| European Geography By Letter - O | 0 | - | 4.28 | 59,687 |
| European Geography by Letter - W | 0 | - | 4.22 | 80,445 |
| European Geography By Letter - T | 0 | - | 4.39 | 72,905 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 61,748 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 48,545 |
| European Geography A-Z | 0 | - | 4.31 | 47,253 |
| Austria... or Australia? | 0 | - | 4.78 | 101,128 |
| Word Chain - France | 0 | - | 4.37 | 41,369 |
| Ancient Greek Trivia | 0 | - | 4.55 | 65,026 |
| Famous Italians | 0 | - | 4.40 | 70,005 |
| Italian Foods | 0 | - | 4.30 | 68,332 |
| The Mafia Quiz | 0 | - | 4.46 | 22,428 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 415,502 |
| History of The Netherlands | 0 | - | 4.44 | 16,452 |
| Famous Nordic People | 0 | - | 4.41 | 10,913 |
| Canary Islands | 0 | - | 4.61 | 16,951 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 25,599 |
| British Spellings Quiz | 0 | - | 4.07 | 97,029 |
| British Groups of Things | 0 | - | 4.25 | 81,773 |
| British Acronyms | 0 | - | 4.39 | 44,554 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,307 |
| British Monopoly Board | 0 | - | 4.51 | 40,190 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,332,591 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 95,059 |
| Flags of Africa Quiz | 0 | - | 5.00 | 419,861 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 24,490 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 206,970 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 110,355 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 153,813 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 127,373 |
| Top African Languages on a Map | 0 | - | 4.92 | 62,870 |
| African Island Countries | 0 | - | 4.96 | 95,012 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 232,756 |
| Australian States and Territories | 0 | - | 4.96 | 135,022 |
| Australian Immigration by Country | 0 | - | 4.81 | 75,223 |
| Australia True or False | 0 | - | 4.87 | 54,229 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 331,300 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 109,820 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 137,742 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 116,810 |
| South America Map Quiz | 0 | - | 5.00 | 1,481,814 |
| Countries of North America Quiz | 0 | - | 5.00 | 941,762 |
| North America Map Quiz | 0 | - | 4.98 | 220,034 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 110,517 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 606,542 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 50,687 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 39,907 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,119,695 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,255,929 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 184,710 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 144,364 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 200,540 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 82,109 |
| Name a Major European City A-Z | 0 | - | 4.31 | 45,654 |
| Seas of Europe | 0 | - | 4.35 | 81,517 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 58,486 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 81,295 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 120,765 |
| Slavic Countries | 0 | - | 4.96 | 105,433 |
| Famous Dutch and Belgian People | 0 | - | 4.53 | 17,325 |
| France A-Z | 0 | - | 4.18 | 36,996 |
| Geography of Germany | 0 | - | 4.37 | 16,367 |
| History of Germany | 0 | - | 4.38 | 51,220 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.57 | 61,087 |
