| Netherlands Immigration by Country | 0 | - | 4.93 | 51,705 |
| Famous Germans | 0 | - | 4.50 | 55,116 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,210 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,532 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,038 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,209 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,775 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,884 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,629 |
| Famous French People | 0 | - | 4.09 | 34,270 |
| States of Germany | 0 | - | 4.96 | 151,742 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,832 |
| Regions of Italy | 0 | - | 4.92 | 75,490 |
| History of The Netherlands | 0 | - | 4.46 | 17,400 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,572 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,947 |
| Departments of France | 0 | - | 4.93 | 53,682 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,507 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,195 |
| England or Wales? | 0 | - | 4.94 | 45,581 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,970 |
| Official European Union Languages | 0 | - | 4.97 | 238,024 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,562 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,317 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,540 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,543 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,879 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,601 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,856 |
| The Mafia Quiz | 0 | - | 4.46 | 23,291 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,738 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,646 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,603 |
| Famous Scottish People | 0 | - | 4.22 | 18,385 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,352 |
| Celtic Nations | 0 | - | 4.69 | 46,901 |
| European Geography By Letter - A | 0 | - | 4.52 | 144,193 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,449 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,208 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,959 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,042 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,010 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,145 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,480 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,172 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,737 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,046 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,285 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,856 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,304 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,613 |
| Regions of France | 0 | - | 4.75 | 120,327 |
| France A-Z | 0 | - | 4.16 | 38,160 |
| France Immigration by Country | 0 | - | 4.70 | 76,369 |
| German Groups of Things | 0 | - | 4.46 | 38,423 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,276 |
| Germany True or False? | 0 | - | 4.61 | 48,727 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,858 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,840 |
| Switzerland A-Z | 0 | - | 4.45 | 25,612 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,224 |
| Counties of England | 0 | - | 4.97 | 794,320 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,032 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,571 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,916 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,107 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,841 |
| Famous Russians | 0 | - | 4.16 | 23,806 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,111 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,062 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,478 |
| Famous Irish People | 0 | - | 4.05 | 45,968 |
| Famous Nordic People | 0 | - | 4.34 | 20,053 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,888 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,500 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,973 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,513 |
| People on Money - England | 0 | - | 4.29 | 16,600 |
| Champions League Winners | 0 | - | 4.92 | 1,003,247 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,357 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,375 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,352 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,010 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,654 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,146 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,494 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,664 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,313 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,166 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,832 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,434 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,691 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,950 |
| European Geography A-Z | 0 | - | 4.29 | 49,178 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,443 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,171 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,548 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,353 |
| Word Chain - France | 0 | - | 4.38 | 42,727 |
| Germany Country Quiz | 0 | - | 4.82 | 157,496 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,820 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,919 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,868 |
| Italy Country Quiz | 0 | - | 4.82 | 123,132 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,037 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,743 |
| Italian Foods | 0 | - | 4.30 | 72,604 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,609 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,302 |
| Canary Islands | 0 | - | 4.62 | 17,458 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,658 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,564 |
| British Spellings | 0 | - | 4.06 | 99,395 |
| British Groups of Things | 0 | - | 4.25 | 82,823 |
| British Acronyms | 0 | - | 4.39 | 45,744 |
| UK Immigration by Country | 0 | - | 4.94 | 140,598 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,011 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,329 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,148 |
| Geography of Scotland | 0 | - | 4.63 | 21,580 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,643 |
| Famous Australians by Description | 0 | - | 4.23 | 27,856 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,462 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,278 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,406 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,305 |
| Slavic Languages | 0 | - | 4.68 | 54,246 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,700 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,605 |
| French History Multiple Choice | 0 | - | 4.55 | 32,993 |
| History of Germany | 0 | - | 4.39 | 52,769 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,831 |
| Name that Greek Letter | 0 | - | 4.93 | 322,990 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,568 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,410 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,574 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,047 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,625 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,992 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,666 |
| Malta Country Quiz | 0 | - | 4.81 | 30,988 |
| Africa A-Z | 0 | - | 4.57 | 46,559 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,782 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,812 |
| History of Russia Quiz | 0 | - | 4.49 | 31,874 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,683 |
| Movies Set in France | 0 | - | 4.26 | 13,108 |
| French Inventions | 0 | - | 4.08 | 13,889 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,019 |
| History of Paris | 0 | - | 4.24 | 13,634 |
| Word Chain - Germany | 0 | - | 4.31 | 22,556 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,879 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,110 |
| The Trojan War | 0 | - | 4.83 | 39,629 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,472 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,431 |
| History of Italy | 0 | - | 4.55 | 31,928 |
| Word Chain - Italy | 0 | - | 4.07 | 23,146 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,606 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,084 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,389 |
| Roman Emperors | 0 | - | 4.95 | 119,593 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,153 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,322 |
| Name a Valid English City | 0 | - | 4.19 | 16,695 |
| London A-Z | 0 | - | 4.10 | 40,737 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 35,366 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,554 |
| Famous Chinese People | 0 | - | 4.09 | 11,861 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,056 |
| Europe Map Quiz | 0 | - | 5.00 | 4,753,630 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,190 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,850 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,136 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,164 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,345 |
| Capitals of French Regions | 0 | - | 4.45 | 16,032 |
| Kings of France Quiz | 0 | - | 4.20 | 32,673 |
| Capitals of German States | 0 | - | 4.74 | 28,919 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,268 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,358 |
| Ancient Greek Words | 0 | - | 4.93 | 111,288 |
| British to American Food Translation | 0 | - | 3.38 | 51,937 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,399 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,510 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,414 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,043 |
| Asian Geography by Letter - H | 0 | - | 4.49 | 65,599 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,337 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,803 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,272 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,919 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,718 |
| Middle East A-Z | 0 | - | 4.47 | 45,965 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,313,164 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,957 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,132 |
| Australian Capitals | 0 | - | 4.92 | 62,689 |
| Canada A-Z | 0 | - | 4.73 | 32,762 |
