| Famous Germans | 0 | - | 4.50 | 54,844 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,900 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,836 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,589 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,108 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,623 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,699 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,065 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,353 |
| States of Germany | 0 | - | 4.96 | 151,107 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,534 |
| Regions of Italy | 0 | - | 4.92 | 75,224 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 48,706 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,193 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,753 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,001 |
| Departments of France | 0 | - | 4.93 | 53,324 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,443 |
| England or Wales? | 0 | - | 4.94 | 45,494 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,857 |
| Official European Union Languages | 0 | - | 4.97 | 237,680 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,327 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,583 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,450 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,510 |
| Famous French People | 0 | - | 4.12 | 28,140 |
| Famous Nordic People | 0 | - | 4.34 | 19,986 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,569 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,749 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| History of The Netherlands | 0 | - | 4.46 | 17,364 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,669 |
| Famous Scottish People | 0 | - | 4.22 | 18,359 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Celtic Nations | 0 | - | 4.69 | 46,873 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,688 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,137 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,115 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,993 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,448 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,336 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,032 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,811 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,444 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,617 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,800 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,364 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,513 |
| Regions of France | 0 | - | 4.77 | 119,985 |
| France A-Z | 0 | - | 4.16 | 38,115 |
| France Immigration by Country | 0 | - | 4.72 | 76,213 |
| German Groups of Things | 0 | - | 4.46 | 38,382 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,199 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,757 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,729 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,067 |
| Switzerland A-Z | 0 | - | 4.45 | 25,579 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,156 |
| Counties of England | 0 | - | 4.97 | 792,655 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,843 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,507 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,582 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,835 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,606 |
| Famous Russians | 0 | - | 4.16 | 23,773 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,338 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,799 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,171 |
| Famous Irish People | 0 | - | 4.05 | 45,907 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,309 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,353 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,671 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,500 |
| People on Money - England | 0 | - | 4.29 | 16,590 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,508 |
| Champions League Winners | 0 | - | 4.92 | 1,000,832 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,176 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,296 |
| Austria Country Quiz | 0 | - | 4.57 | 59,540 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,888 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,621 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,441 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,862 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,107 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,728 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,679 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,363 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,090 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,434 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,653 |
| European Geography A-Z | 0 | - | 4.29 | 49,116 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,819 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,750 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,107 |
| Austria... or Australia? | 0 | - | 4.68 | 104,112 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,774 |
| Word Chain - France | 0 | - | 4.38 | 42,678 |
| Germany Country Quiz | 0 | - | 4.82 | 157,202 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,568 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,871 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,843 |
| Italy Country Quiz | 0 | - | 4.82 | 122,697 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,845 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,472 |
| Italian Foods | 0 | - | 4.31 | 72,468 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,438 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,050 |
| Canary Islands | 0 | - | 4.61 | 17,438 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,443 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,422 |
| British Spellings | 0 | - | 4.06 | 99,356 |
| British Groups of Things | 0 | - | 4.25 | 82,778 |
| British Acronyms | 0 | - | 4.39 | 45,707 |
| UK Immigration by Country | 0 | - | 4.94 | 140,373 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,994 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,983 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,876 |
| Geography of Scotland | 0 | - | 4.63 | 21,548 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,277 |
| Famous Australians by Description | 0 | - | 4.23 | 27,794 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,627 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,304 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,874 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,317 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,139 |
| Slavic Languages | 0 | - | 4.68 | 54,153 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,637 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,537 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,034 |
| French History Multiple Choice | 0 | - | 4.55 | 32,951 |
| History of Germany | 0 | - | 4.39 | 52,726 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,681 |
| Name that Greek Letter | 0 | - | 4.93 | 322,576 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,525 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,358 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,540 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 85,860 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,569 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,970 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,580 |
| Malta Country Quiz | 0 | - | 4.81 | 30,940 |
| Africa A-Z | 0 | - | 4.57 | 46,502 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,405 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,589 |
| History of Russia Quiz | 0 | - | 4.49 | 31,846 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,643 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,198 |
| Movies Set in France | 0 | - | 4.26 | 13,097 |
| French Inventions | 0 | - | 4.08 | 13,876 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,884 |
| History of Paris | 0 | - | 4.24 | 13,629 |
| Word Chain - Germany | 0 | - | 4.31 | 22,527 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,766 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,082 |
| The Trojan War | 0 | - | 4.83 | 39,572 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,185 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,102 |
| History of Italy | 0 | - | 4.55 | 31,901 |
| Word Chain - Italy | 0 | - | 4.07 | 23,135 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,450 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,069 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,289 |
| Roman Emperors | 0 | - | 4.95 | 119,255 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,569 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,098 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,302 |
| Name a Valid English City | 0 | - | 4.19 | 16,674 |
| London A-Z | 0 | - | 4.10 | 40,700 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,183 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,174 |
| Famous Chinese People | 0 | - | 4.09 | 11,837 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,921 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,949 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,319 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,138 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,780 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,081 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,122 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,247 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Kings of France Quiz | 0 | - | 4.20 | 32,632 |
| Capitals of German States | 0 | - | 4.74 | 28,895 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,205 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,456 |
| Ancient Greek Words | 0 | - | 4.93 | 111,116 |
| British to American Food Translation | 0 | - | 3.38 | 51,908 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,359 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,080 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,149 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 70,963 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,523 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,265 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,716 |
| Asian Geography by Letter - T | 0 | - | 4.50 | 57,186 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,842 |
| Middle East A-Z | 0 | - | 4.47 | 45,918 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,310,467 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,820 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,662 |
