| European Countries by First 2 Letters | 0 | - | 4.95 | 530,965 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,408 |
| Official European Union Languages | 0 | - | 4.97 | 239,096 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,242 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,537 |
| Celtic Nations | 0 | - | 4.69 | 47,016 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,154 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,940 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,446 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,723 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,704 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,901 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,525 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,252 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,632 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,842 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,220 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,475 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,497 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,463 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,298 |
| States of Germany | 0 | - | 4.95 | 153,559 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,366 |
| Regions of Italy | 0 | - | 4.92 | 76,420 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,515 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,673 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,495 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,940 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,764 |
| Champions League Winners | 0 | - | 4.92 | 1,010,970 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,668 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,956 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,851 |
| Slavic Languages | 0 | - | 4.68 | 54,518 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,684 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,534 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,542 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,704 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,972 |
| Departments of France | 0 | - | 4.93 | 54,619 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,641 |
| England or Wales? | 0 | - | 4.94 | 45,828 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,239 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,589 |
| Country Codes of Europe | 0 | - | 3.43 | 13,764 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,455 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,693 |
| History of Russia Quiz | 0 | - | 4.47 | 31,971 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,797 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,915 |
| Capitals of French Regions | 0 | - | 4.45 | 16,125 |
| Capitals of German States | 0 | - | 4.74 | 29,006 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,420 |
| History of Italy | 0 | - | 4.55 | 32,085 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,060 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,748 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,324 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,910 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,104 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,505 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,888 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,441 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,109 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,488 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,286 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,103 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,354 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,941 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,393 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,047 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,344 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,320 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,967 |
| Regions of France | 0 | - | 4.70 | 121,425 |
| France Immigration by Country | 0 | - | 4.70 | 76,724 |
| Famous Germans | 0 | - | 4.50 | 55,575 |
| German Groups of Things | 0 | - | 4.46 | 38,555 |
| Germany True or False? | 0 | - | 4.61 | 48,921 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,197 |
| The Trojan War | 0 | - | 4.83 | 39,850 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,625 |
| Name that Greek Letter | 0 | - | 4.93 | 324,343 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,416 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,913 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,049 |
| Roman Emperors | 0 | - | 4.95 | 120,553 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,550 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,514 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,106 |
| Asia Map Quiz | 0 | - | 4.99 | 920,707 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,162 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,041 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,022 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,773 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,861 |
| European Physical Geography | 0 | - | 4.26 | 33,555 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,010 |
| The Only European Country ... | 0 | - | 4.91 | 217,748 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,815 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,344 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| History of Austria | 0 | - | 4.70 | 17,926 |
| Presidents of France | 0 | - | 4.25 | 24,238 |
| Geography of the French Empire | 0 | - | 4.45 | 27,169 |
| The French Revolution | 0 | - | 4.47 | 24,079 |
| France Multiple Choice | 0 | - | 4.39 | 40,783 |
| The Vikings! | 0 | - | 4.46 | 28,375 |
| The Portuguese Empire | 0 | - | 4.58 | 12,087 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,079 |
| American to British Word Translation | 0 | - | 4.14 | 139,402 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,971 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,445 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,245 |
| African East Coast | 0 | - | 4.96 | 96,395 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,246 |
| Australia Map Quiz | 0 | - | 4.95 | 345,411 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,323 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,038 |
| History of France | 0 | - | 4.61 | 57,352 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,269 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,249 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,206 |
| Champions League Top 4 | 0 | - | 4.77 | 137,585 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,319 |
| Countries of Africa | 0 | - | 5.00 | 2,547,815 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,908 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,349 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,698 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,548 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,232 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,978 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,608 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,086 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,214 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,774 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,496 |
| European Geography A-Z | 0 | - | 4.29 | 49,387 |
| Famous French People | 0 | - | 4.07 | 35,922 |
| Word Chain - France | 0 | - | 4.38 | 42,867 |
| Ancient Greek Words | 0 | - | 4.93 | 112,043 |
| Italian Foods | 0 | - | 4.30 | 73,012 |
| The Mafia Quiz | 0 | - | 4.46 | 23,393 |
| History of The Netherlands | 0 | - | 4.46 | 17,501 |
| Canary Islands | 0 | - | 4.62 | 17,500 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,866 |
| British Spellings | 0 | - | 4.06 | 99,527 |
| British Groups of Things | 0 | - | 4.25 | 82,932 |
| British Acronyms | 0 | - | 4.40 | 45,872 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,064 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,996 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,740 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,336 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,192 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,823 |
| Australian States and Territories | 0 | - | 4.96 | 142,368 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,389 |
| Australia Country Quiz | 0 | - | 4.43 | 69,701 |
| Australia True or False | 0 | - | 4.87 | 57,000 |
| Flags of North and South America | 0 | - | 4.99 | 374,857 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,760 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,480 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,223 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,498 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,659 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,917 |
| North America Map Quiz | 0 | - | 4.98 | 249,831 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,837 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,217 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,218 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,367 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,001 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,467 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,784 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,061 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,581 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,705 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,464 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,800 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,713 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,501 |
| Slavic Countries | 0 | - | 4.96 | 112,001 |
| Austria... or Australia? | 0 | - | 4.68 | 104,567 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,519 |
| Geography of Germany | 0 | - | 4.35 | 17,218 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,117 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,969 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,468 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,384 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,325 |
| History of Spain | 0 | - | 4.23 | 21,132 |
| Languages of Spain | 0 | - | 4.36 | 23,365 |
| British to American Word Translation | 0 | - | 3.74 | 255,205 |
| British Foods by Description | 0 | - | 3.94 | 48,349 |
| British and American Word Differences | 0 | - | 2.63 | 46,906 |
| Counties of England | 0 | - | 4.97 | 799,853 |
| British Monopoly Board | 0 | - | 4.52 | 41,209 |
