| European Countries by First 2 Letters | 0 | - | 4.95 | 529,197 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,317 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,752 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,112 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,857 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,065 |
| Official European Union Languages | 0 | - | 4.97 | 238,332 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,738 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,877 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,585 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,935 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,798 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,239 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,135 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,324 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,935 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,298 |
| Country Logic Puzzle 4x4 – Sudoku style | 0 | - | 5.00 | 27,995 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,711 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,753 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,472 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,188 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,244 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,311 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,331 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,643 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,544 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,869 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,244 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,444 |
| Famous Germans | 0 | - | 4.50 | 55,253 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,408 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,310 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,016 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,452 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,825 |
| States of Germany | 0 | - | 4.96 | 152,257 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,967 |
| Regions of Italy | 0 | - | 4.92 | 75,749 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,042 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,804 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,119 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,624 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,684 |
| Champions League Winners | 0 | - | 4.92 | 1,005,559 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,438 |
| Countries Hidden in a Letter #1 | 0 | - | 5.00 | 48,123 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,958 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,584 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,917 |
| Departments of France | 0 | - | 4.93 | 53,986 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,533 |
| England or Wales? | 0 | - | 4.94 | 45,643 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,142 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,344 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,662 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,833 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,483 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,323 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,969 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,578 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,816 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,072 |
| European Geography A-Z | 0 | - | 4.29 | 49,232 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,650 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,606 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,775 |
| Slavic Languages | 0 | - | 4.68 | 54,317 |
| Famous French People | 0 | - | 4.06 | 35,378 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,591 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| History of The Netherlands | 0 | - | 4.46 | 17,426 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,444 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,736 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,480 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,397 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,621 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,057 |
| France A-Z | 0 | - | 4.16 | 38,189 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,782 |
| Name that Greek Letter | 0 | - | 4.93 | 323,282 |
| Switzerland A-Z | 0 | - | 4.45 | 25,633 |
| Random Countries Hidden in the World Map | 0 | - | 4.82 | 112,969 |
| Africa A-Z | 0 | - | 4.57 | 46,590 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,038 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,971 |
| Famous Russians | 0 | - | 4.16 | 23,833 |
| History of Russia Quiz | 0 | - | 4.47 | 31,903 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,713 |
| Russian History A-Z | 0 | - | 4.38 | 31,654 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,129 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,977 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,127 |
| The Trojan War | 0 | - | 4.83 | 39,683 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,700 |
| Famous Irish People | 0 | - | 4.05 | 45,989 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,719 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,480 |
| Roman Emperors | 0 | - | 4.95 | 119,827 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,640 |
| Famous Nordic People | 0 | - | 4.34 | 20,089 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,200 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,521 |
| People on Money - England | 0 | - | 4.29 | 16,608 |
| London A-Z | 0 | - | 4.10 | 40,753 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,497 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,871 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,315,288 |
| Country Word Search #2 | 0 | - | 4.54 | 56,389 |
| Country Word Search - Large Edition | 0 | - | 4.68 | 64,823 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,145 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,177 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,243 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,909 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,196 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,214 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,402 |
| Capitals of French Regions | 0 | - | 4.45 | 16,056 |
| Regions of France | 0 | - | 4.75 | 120,602 |
| France Immigration by Country | 0 | - | 4.70 | 76,463 |
| German Groups of Things | 0 | - | 4.46 | 38,460 |
| Capitals of German States | 0 | - | 4.74 | 28,943 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,307 |
| Germany True or False? | 0 | - | 4.61 | 48,769 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,950 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,339 |
| Ancient Greek Words | 0 | - | 4.93 | 111,476 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,300 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,249 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,161 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,428 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,927 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,583 |
| Famous Scottish People | 0 | - | 4.22 | 18,392 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,095 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,655 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,384 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,853 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,327 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,987 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,816 |
| Middle East A-Z | 0 | - | 4.47 | 46,001 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,027 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,397 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,497 |
| Canada A-Z | 0 | - | 4.73 | 32,798 |
| European Physical Geography | 0 | - | 4.26 | 33,491 |
| Geography of Russia | 0 | - | 4.57 | 21,522 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,932 |
| History of Austria | 0 | - | 4.70 | 17,851 |
| Geography of the French Empire | 0 | - | 4.45 | 27,043 |
| The French Revolution | 0 | - | 4.46 | 23,922 |
| France Multiple Choice | 0 | - | 4.39 | 40,723 |
| History of France | 0 | - | 4.59 | 56,921 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,730 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,069 |
| The Vikings! | 0 | - | 4.46 | 28,334 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,094 |
| The Portuguese Empire | 0 | - | 4.58 | 12,057 |
| American to British Word Translation | 0 | - | 4.14 | 138,906 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,878 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,640 |
| Champions League Top 4 | 0 | - | 4.77 | 136,158 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,644 |
| Asia Map Quiz | 0 | - | 4.99 | 915,727 |
| A Quiz About Islam | 0 | - | 4.31 | 48,415 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,809 |
| Country Word Search #1 | 0 | - | 4.35 | 199,437 |
| Countries of Africa | 0 | - | 5.00 | 2,533,608 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,737 |
| African East Coast | 0 | - | 4.96 | 95,952 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,771 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,592 |
| Australia Map Quiz | 0 | - | 4.95 | 344,166 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,364 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,832 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,444 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,871 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,698 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,004 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,623 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,790 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,228 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,649 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,058 |
| Country Codes of Europe | 0 | - | 3.43 | 13,703 |
| The Only European Country ... | 0 | - | 4.91 | 216,321 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,960 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,101 |
| Austria... or Australia? | 0 | - | 4.68 | 104,291 |
| Presidents of France | 0 | - | 4.25 | 24,073 |
| Word Chain - France | 0 | - | 4.38 | 42,764 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,966 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,899 |
