| European Countries by First 2 Letters | 0 | - | 4.95 | 532,900 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,824 |
| Official European Union Languages | 0 | - | 4.97 | 240,111 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,775 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,266 |
| Celtic Nations | 0 | - | 4.61 | 47,123 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,366 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,090 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,528 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,109 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,076 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,343 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,732 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,502 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,800 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,384 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,855 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,073 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,863 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 89,036 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,122 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,843 |
| States of Germany | 0 | - | 4.95 | 154,845 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,776 |
| Regions of Italy | 0 | - | 4.92 | 77,214 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,883 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,507 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,868 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 280,921 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,594 |
| Champions League Winners | 0 | - | 4.92 | 1,017,467 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,768 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,738 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,416 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 123,584 |
| Slavic Languages | 0 | - | 4.67 | 54,760 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,753 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,659 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,194 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,229 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,161 |
| Departments of France | 0 | - | 4.93 | 55,342 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,768 |
| England or Wales? | 0 | - | 4.94 | 46,007 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,382 |
| Australian Capitals | 0 | - | 4.92 | 62,856 |
| Europe Map Quiz | 0 | - | 5.00 | 4,791,882 |
| Country Codes of Europe | 0 | - | 3.45 | 13,841 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,970 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,021 |
| History of Russia Quiz | 0 | - | 4.47 | 32,016 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,896 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,162 |
| Capitals of French Regions | 0 | - | 4.45 | 16,193 |
| Capitals of German States | 0 | - | 4.74 | 29,090 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,575 |
| History of Italy | 0 | - | 4.55 | 32,175 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,473 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,841 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,461 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,046 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,323 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,725 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,229 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,629 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,250 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,761 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,271 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,876 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,154 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,765 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,556 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,228 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,493 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,455 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,549 |
| Regions of France | 0 | - | 4.70 | 122,301 |
| France Immigration by Country | 0 | - | 4.70 | 76,985 |
| Famous Germans | 0 | - | 4.50 | 55,850 |
| German Groups of Things | 0 | - | 4.47 | 38,659 |
| Germany True or False? | 0 | - | 4.61 | 49,056 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,554 |
| The Trojan War | 0 | - | 4.83 | 40,035 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,656 |
| Name that Greek Letter | 0 | - | 4.93 | 325,183 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,116 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,502 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,661 |
| Roman Emperors | 0 | - | 4.95 | 121,368 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,888 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,428 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,919 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,170 |
| Asia Map Quiz | 0 | - | 4.99 | 926,312 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,252 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,565 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,234 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,970 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,123 |
| European Physical Geography | 0 | - | 4.26 | 33,611 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,413 |
| The Only European Country ... | 0 | - | 4.91 | 219,443 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,767 |
| Geography of Russia | 0 | - | 4.57 | 21,614 |
| History of Austria | 0 | - | 4.70 | 17,990 |
| Presidents of France | 0 | - | 4.25 | 24,364 |
| Geography of the French Empire | 0 | - | 4.45 | 27,228 |
| The French Revolution | 0 | - | 4.47 | 24,163 |
| France Multiple Choice | 0 | - | 4.39 | 40,871 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,572 |
| The Vikings! | 0 | - | 4.46 | 28,419 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,130 |
| American to British Word Translation | 0 | - | 4.14 | 139,790 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,084 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 100,098 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,200 |
| African East Coast | 0 | - | 4.96 | 96,889 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,768 |
| Australia Map Quiz | 0 | - | 4.95 | 346,414 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,482 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,153 |
| History of France | 0 | - | 4.61 | 57,699 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,220 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,423 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,416 |
| Champions League Top 4 | 0 | - | 4.78 | 139,453 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,832 |
| Countries of Africa | 0 | - | 5.00 | 2,563,443 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,976 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,380 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,628 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,333 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,105 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,687 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,330 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,714 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,684 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,927 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,986 |
| European Geography A-Z | 0 | - | 4.29 | 49,511 |
| Famous French People | 0 | - | 4.05 | 36,144 |
| Word Chain - France | 0 | - | 4.38 | 42,953 |
| Ancient Greek Words | 0 | - | 4.93 | 112,614 |
| Italian Foods | 0 | - | 4.30 | 73,356 |
| The Mafia Quiz | 0 | - | 4.46 | 23,447 |
| History of The Netherlands | 0 | - | 4.46 | 17,569 |
| Canary Islands | 0 | - | 4.62 | 17,547 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,133 |
| British Spellings | 0 | - | 4.06 | 99,623 |
| British Groups of Things | 0 | - | 4.26 | 83,035 |
| British Acronyms | 0 | - | 4.40 | 45,957 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,123 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,191 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,841 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,598 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,947 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 61,070 |
| Australian States and Territories | 0 | - | 4.96 | 142,996 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,533 |
| Australia Country Quiz | 0 | - | 4.43 | 69,878 |
| Australia True or False | 0 | - | 4.86 | 57,196 |
| Flags of North and South America | 0 | - | 4.99 | 377,813 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,061 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,957 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,818 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,020 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,779 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,831 |
| North America Map Quiz | 0 | - | 4.98 | 252,580 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,026 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,868 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,169 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,636 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,225 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,569 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,811 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,727 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,490 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,149 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,877 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,681 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,327 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,882 |
| Slavic Countries | 0 | - | 4.96 | 112,477 |
| Austria... or Australia? | 0 | - | 4.67 | 104,817 |
| Geography of Germany | 0 | - | 4.35 | 17,338 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,269 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,066 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,226 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,574 |
| History of Spain | 0 | - | 4.23 | 21,173 |
| Languages of Spain | 0 | - | 4.36 | 23,460 |
| British to American Word Translation | 0 | - | 3.74 | 255,386 |
| British Foods by Description | 0 | - | 3.94 | 48,401 |
| British and American Word Differences | 0 | - | 2.63 | 46,938 |
| Counties of England | 0 | - | 4.97 | 803,893 |
| British Monopoly Board | 0 | - | 4.52 | 41,285 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,246 |
| Bridges of London | 0 | - | 4.17 | 10,149 |
