| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,439 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,988 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,726 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,108 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,970 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,218 |
| Official European Union Languages | 0 | - | 4.97 | 238,667 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,963 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,516 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,620 |
| Slavic Languages | 0 | - | 4.68 | 54,405 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,029 |
| History of Russia Quiz | 0 | - | 4.47 | 31,938 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,756 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,867 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,830 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,270 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,396 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,294 |
| Slavic Countries | 0 | - | 4.96 | 111,754 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,390 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,101 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,876 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,407 |
| Celtic Nations | 0 | - | 4.69 | 46,965 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,445 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,798 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,140 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,772 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,635 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,829 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,653 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,950 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,802 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,091 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,543 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,689 |
| Famous Germans | 0 | - | 4.50 | 55,344 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,555 |
| Champions League Winners | 0 | - | 4.92 | 1,008,018 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,578 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,224 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,593 |
| Geography of Russia | 0 | - | 4.57 | 21,545 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,967 |
| States of Germany | 0 | - | 4.95 | 152,823 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,149 |
| Regions of Italy | 0 | - | 4.92 | 76,035 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,281 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,113 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,285 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,081 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,719 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,557 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,876 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,035 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,148 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,828 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,629 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,269 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,817 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,988 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,265 |
| European Geography A-Z | 0 | - | 4.29 | 49,305 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,525 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,534 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,067 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,306 |
| Famous French People | 0 | - | 4.07 | 35,667 |
| Departments of France | 0 | - | 4.93 | 54,260 |
| The Mafia Quiz | 0 | - | 4.46 | 23,341 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,564 |
| History of The Netherlands | 0 | - | 4.46 | 17,449 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,871 |
| England or Wales? | 0 | - | 4.94 | 45,742 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,639 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,664 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,769 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,236 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,563 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,535 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,806 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,629 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,072 |
| France A-Z | 0 | - | 4.16 | 38,224 |
| The Trojan War | 0 | - | 4.83 | 39,760 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,078 |
| Name that Greek Letter | 0 | - | 4.93 | 323,959 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,992 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,635 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,584 |
| Roman Emperors | 0 | - | 4.95 | 120,191 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,490 |
| Switzerland A-Z | 0 | - | 4.45 | 25,661 |
| Africa A-Z | 0 | - | 4.57 | 46,637 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,188 |
| Famous Russians | 0 | - | 4.16 | 23,850 |
| Word Chain - Russia | 0 | - | 4.33 | 15,764 |
| Russian History A-Z | 0 | - | 4.38 | 31,782 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,159 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,295 |
| Famous Irish People | 0 | - | 4.05 | 46,006 |
| History of Italy | 0 | - | 4.55 | 32,013 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,849 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,686 |
| Famous Nordic People | 0 | - | 4.34 | 20,146 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,615 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,263 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,536 |
| People on Money - England | 0 | - | 4.29 | 16,619 |
| London A-Z | 0 | - | 4.10 | 40,796 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 38,380 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,380 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,233 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,376 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,311 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,975 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,263 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,263 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,500 |
| Capitals of French Regions | 0 | - | 4.45 | 16,089 |
| Regions of France | 0 | - | 4.72 | 120,957 |
| France Immigration by Country | 0 | - | 4.70 | 76,587 |
| German Groups of Things | 0 | - | 4.46 | 38,492 |
| Capitals of German States | 0 | - | 4.74 | 28,974 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,362 |
| Germany True or False? | 0 | - | 4.61 | 48,840 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,067 |
| Ancient Greek Words | 0 | - | 4.93 | 111,744 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,200 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,430 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,289 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,318 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,683 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,509 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,865 |
| Famous Scottish People | 0 | - | 4.22 | 18,403 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,174 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,747 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,447 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,951 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,397 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,380 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,071 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,936 |
| Middle East A-Z | 0 | - | 4.47 | 46,069 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,318,003 |
| Africa Map Quiz | 0 | - | 5.00 | 2,119,616 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,013 |
| Australian Capitals | 0 | - | 4.92 | 62,734 |
| Canada A-Z | 0 | - | 4.73 | 32,852 |
| European Physical Geography | 0 | - | 4.26 | 33,522 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,255 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,987 |
| History of Austria | 0 | - | 4.70 | 17,878 |
| Geography of the French Empire | 0 | - | 4.45 | 27,122 |
| The French Revolution | 0 | - | 4.47 | 24,018 |
| France Multiple Choice | 0 | - | 4.39 | 40,752 |
| History of France | 0 | - | 4.59 | 57,121 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,194 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,482 |
| The Vikings! | 0 | - | 4.46 | 28,354 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,165 |
| The Portuguese Empire | 0 | - | 4.58 | 12,074 |
| American to British Word Translation | 0 | - | 4.14 | 139,175 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,921 |
| Champions League Top 4 | 0 | - | 4.77 | 136,809 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,842 |
| Asia Map Quiz | 0 | - | 4.99 | 917,792 |
| A Quiz About Islam | 0 | - | 4.31 | 48,467 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,900 |
| Most Common English Verbs - Extreme | 0 | - | 4.96 | 157,399 |
| Countries of Africa | 0 | - | 5.00 | 2,540,425 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,936 |
| African East Coast | 0 | - | 4.96 | 96,141 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,004 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,806 |
| Australia Map Quiz | 0 | - | 4.95 | 344,822 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,456 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,898 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,479 |
| United States Map Quiz | 0 | - | 4.98 | 4,160,901 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,461 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,494 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,693 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,254 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,696 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,712 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,423 |
| Country Codes of Europe | 0 | - | 3.43 | 13,738 |
| The Only European Country ... | 0 | - | 4.91 | 216,970 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,332 |
| Seas of Europe | 0 | - | 4.37 | 84,681 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,221 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,318 |
| Austria... or Australia? | 0 | - | 4.68 | 104,422 |
| Presidents of France | 0 | - | 4.25 | 24,168 |
| Word Chain - France | 0 | - | 4.38 | 42,795 |
| History of Germany | 0 | - | 4.39 | 52,859 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,033 |
