| European Countries by First 2 Letters | 0 | - | 4.95 | 532,722 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,072 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,044 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,979 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,024 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,044 |
| States of Germany | 0 | - | 4.95 | 154,691 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,737 |
| Regions of Italy | 0 | - | 4.92 | 77,159 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,843 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,435 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,817 |
| Departments of France | 0 | - | 4.93 | 55,248 |
| Famous Germans | 0 | - | 4.50 | 55,817 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,531 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,460 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,754 |
| England or Wales? | 0 | - | 4.94 | 45,990 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,788 |
| Official European Union Languages | 0 | - | 4.97 | 239,903 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,723 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,108 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,394 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,755 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,342 |
| Famous French People | 0 | - | 4.05 | 36,126 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,252 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,056 |
| The Mafia Quiz | 0 | - | 4.46 | 23,443 |
| History of The Netherlands | 0 | - | 4.46 | 17,562 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,073 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,167 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,517 |
| Celtic Nations | 0 | - | 4.61 | 47,109 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,288 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,688 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,167 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,429 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,213 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,701 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,240 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,858 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,139 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,731 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,532 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,922 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,112 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,674 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,151 |
| Regions of France | 0 | - | 4.70 | 122,217 |
| France A-Z | 0 | - | 4.16 | 38,347 |
| France Immigration by Country | 0 | - | 4.70 | 76,965 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,713 |
| Germany True or False? | 0 | - | 4.61 | 49,035 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,484 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,831 |
| Switzerland A-Z | 0 | - | 4.45 | 25,776 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,419 |
| Counties of England | 0 | - | 4.97 | 803,486 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,876 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,828 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,072 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,884 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,826 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,701 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,725 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,884 |
| Famous Nordic People | 0 | - | 4.34 | 20,318 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,645 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,600 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,569 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,145 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,581 |
| People on Money - England | 0 | - | 4.29 | 16,647 |
| Champions League Winners | 0 | - | 4.92 | 1,016,889 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,075 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,774 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,406 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,847 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,344 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,601 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,308 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,075 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,667 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,306 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,694 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,671 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,974 |
| European Geography A-Z | 0 | - | 4.29 | 49,497 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,057 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,069 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,058 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,966 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,880 |
| Word Chain - France | 0 | - | 4.38 | 42,948 |
| Germany Country Quiz | 0 | - | 4.82 | 158,928 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,138 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,298 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,117 |
| Italian Foods | 0 | - | 4.30 | 73,316 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,543 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,942 |
| Canary Islands | 0 | - | 4.62 | 17,544 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 117,003 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,100 |
| British Spellings | 0 | - | 4.06 | 99,615 |
| British Groups of Things | 0 | - | 4.26 | 83,029 |
| British Acronyms | 0 | - | 4.40 | 45,952 |
| UK Immigration by Country | 0 | - | 4.94 | 141,799 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,118 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 141,125 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,895 |
| Geography of Scotland | 0 | - | 4.63 | 21,750 |
| Famous Scottish People | 0 | - | 4.22 | 18,442 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,277 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,592 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 57,167 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,372 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,927 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,876 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,989 |
| Slavic Languages | 0 | - | 4.67 | 54,721 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,107 |
| French History Multiple Choice | 0 | - | 4.55 | 33,250 |
| History of Germany | 0 | - | 4.39 | 52,986 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,352 |
| Name that Greek Letter | 0 | - | 4.93 | 325,106 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,868 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,749 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,647 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,324 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,931 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,994 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,094 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,117 |
| Malta Country Quiz | 0 | - | 4.81 | 31,245 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,909 |
| Famous Russians | 0 | - | 4.16 | 23,918 |
| History of Russia Quiz | 0 | - | 4.47 | 32,010 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,884 |
| Russian History A-Z | 0 | - | 4.35 | 32,255 |
| Movies Set in France | 0 | - | 4.26 | 13,153 |
| French Inventions | 0 | - | 4.10 | 13,929 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,740 |
| History of Paris | 0 | - | 4.24 | 13,683 |
| Word Chain - Germany | 0 | - | 4.31 | 22,690 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,594 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,247 |
| The Trojan War | 0 | - | 4.83 | 40,018 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,055 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,685 |
| Famous Irish People | 0 | - | 4.05 | 46,072 |
| History of Italy | 0 | - | 4.55 | 32,164 |
| Word Chain - Italy | 0 | - | 4.07 | 23,225 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,437 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,168 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,634 |
| Roman Emperors | 0 | - | 4.95 | 121,311 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,833 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,441 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,417 |
| Name a Valid English City | 0 | - | 4.19 | 16,833 |
| London A-Z | 0 | - | 4.10 | 40,886 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 43,040 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,835 |
| Africa A-Z | 0 | - | 4.57 | 46,786 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,502 |
| NBA Players by Wikipedia Descriptions | 0 | - | 4.43 | 40,765 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,553 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,302 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,541 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,209 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,477 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,440 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,565 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,757 |
| Capitals of French Regions | 0 | - | 4.45 | 16,186 |
| Kings of France Quiz | 0 | - | 4.21 | 32,942 |
| Capitals of German States | 0 | - | 4.74 | 29,078 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,557 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,019 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,590 |
| Ancient Greek Words | 0 | - | 4.93 | 112,563 |
| British to American Food Translation | 0 | - | 3.38 | 52,057 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,583 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,491 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,882 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,498 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,105 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,691 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,245 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,687 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,341 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,341 |
| Middle East A-Z | 0 | - | 4.47 | 46,255 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,326,543 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,804 |
| Australian Capitals | 0 | - | 4.92 | 62,844 |
