| European Countries by First 2 Letters | 0 | - | 4.95 | 530,406 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,419 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,302 |
| Official European Union Languages | 0 | - | 4.97 | 238,861 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,092 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,889 |
| Slavic Languages | 0 | - | 4.68 | 54,454 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,088 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,900 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,419 |
| Celtic Nations | 0 | - | 4.69 | 46,985 |
| History of Russia Quiz | 0 | - | 4.47 | 31,945 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,770 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,511 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,135 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,742 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,524 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,365 |
| Slavic Countries | 0 | - | 4.96 | 111,854 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,450 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,167 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,913 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,351 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,563 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 84,439 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,243 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,921 |
| Geography of Russia | 0 | - | 4.57 | 21,552 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,061 |
| States of Germany | 0 | - | 4.95 | 153,086 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,249 |
| Regions of Italy | 0 | - | 4.92 | 76,197 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,389 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,319 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,379 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,740 |
| Champions League Winners | 0 | - | 4.91 | 1,009,451 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,636 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,671 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,848 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,523 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,819 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,299 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,551 |
| Departments of France | 0 | - | 4.93 | 54,410 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,654 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,607 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,510 |
| England or Wales? | 0 | - | 4.94 | 45,783 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,926 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,544 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,593 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,845 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,571 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,306 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,657 |
| Name that Greek Letter | 0 | - | 4.93 | 324,109 |
| History of Italy | 0 | - | 4.55 | 32,046 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,932 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,715 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,292 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,674 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,535 |
| Word Chain - Russia | 0 | - | 4.33 | 15,770 |
| Capitals of French Regions | 0 | - | 4.45 | 16,100 |
| Capitals of German States | 0 | - | 4.74 | 28,984 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,391 |
| The Trojan War | 0 | - | 4.83 | 39,787 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,178 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,636 |
| Roman Emperors | 0 | - | 4.95 | 120,339 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,212 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,610 |
| Australian Capitals | 0 | - | 4.92 | 62,746 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,779 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,193 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,543 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,120 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,854 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,139 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,815 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,097 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,910 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,200 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,722 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,342 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,999 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,289 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,285 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,802 |
| Regions of France | 0 | - | 4.72 | 121,159 |
| France Immigration by Country | 0 | - | 4.70 | 76,659 |
| Famous Germans | 0 | - | 4.50 | 55,501 |
| German Groups of Things | 0 | - | 4.46 | 38,514 |
| Germany True or False? | 0 | - | 4.61 | 48,876 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,129 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,730 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,735 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,477 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,334 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,410 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,510 |
| Asia Map Quiz | 0 | - | 4.99 | 919,125 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,063 |
| African East Coast | 0 | - | 4.96 | 96,252 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,102 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,856 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,722 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,729 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,485 |
| European Physical Geography | 0 | - | 4.26 | 33,539 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,622 |
| Country Codes of Europe | 0 | - | 3.43 | 13,746 |
| The Only European Country ... | 0 | - | 4.91 | 217,297 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,512 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,281 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,003 |
| History of Austria | 0 | - | 4.70 | 17,900 |
| Presidents of France | 0 | - | 4.25 | 24,197 |
| Geography of the French Empire | 0 | - | 4.45 | 27,151 |
| The French Revolution | 0 | - | 4.47 | 24,053 |
| France Multiple Choice | 0 | - | 4.39 | 40,768 |
| History of France | 0 | - | 4.59 | 57,243 |
| Ancient Greek Words | 0 | - | 4.93 | 111,861 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,260 |
| The Vikings! | 0 | - | 4.46 | 28,367 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,203 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,063 |
| American to British Word Translation | 0 | - | 4.14 | 139,276 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,940 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,137 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,709 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,879 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,028 |
| Champions League Top 4 | 0 | - | 4.77 | 137,174 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,212 |
| Countries of Africa | 0 | - | 5.00 | 2,543,682 |
| Australia Map Quiz | 0 | - | 4.95 | 344,996 |
| United States Map Quiz | 0 | - | 4.98 | 4,162,943 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,955 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,122 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,486 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,346 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,033 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,787 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,425 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,923 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,077 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,739 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,363 |
| European Geography A-Z | 0 | - | 4.29 | 49,352 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,324 |
| Austria... or Australia? | 0 | - | 4.68 | 104,483 |
| Famous French People | 0 | - | 4.07 | 35,817 |
| Word Chain - France | 0 | - | 4.38 | 42,829 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,064 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Italian Foods | 0 | - | 4.30 | 72,915 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,402 |
| The Mafia Quiz | 0 | - | 4.46 | 23,365 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,847 |
| History of The Netherlands | 0 | - | 4.46 | 17,475 |
| Canary Islands | 0 | - | 4.62 | 17,490 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,809 |
| British Spellings | 0 | - | 4.06 | 99,499 |
| British Groups of Things | 0 | - | 4.25 | 82,902 |
| British Acronyms | 0 | - | 4.40 | 45,843 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,052 |
| British Monopoly Board | 0 | - | 4.52 | 41,190 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,922 |
| Geography of Scotland | 0 | - | 4.63 | 21,651 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,654 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,069 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,832 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,278 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,764 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,441 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,409 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,785 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,401 |
| African Island Countries | 0 | - | 4.96 | 101,832 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,777 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,398 |
| Australian States and Territories | 0 | - | 4.96 | 142,197 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,357 |
| Australia True or False | 0 | - | 4.87 | 56,937 |
| Flags of North and South America | 0 | - | 4.99 | 374,112 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,699 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,371 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,069 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,451 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,632 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,025,434 |
| North America Map Quiz | 0 | - | 4.98 | 249,252 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,800 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,512 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 641,473 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,286 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,950 |
