| Netherlands Immigration by Country | 0 | - | 4.93 | 52,126 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,347 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,404 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,418 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,939 |
| States of Germany | 0 | - | 4.96 | 152,456 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,010 |
| Regions of Italy | 0 | - | 4.92 | 75,835 |
| History of The Netherlands | 0 | - | 4.46 | 17,430 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,907 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,181 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,164 |
| Famous Germans | 0 | - | 4.50 | 55,277 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,460 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,337 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,058 |
| Departments of France | 0 | - | 4.93 | 54,065 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,541 |
| England or Wales? | 0 | - | 4.94 | 45,674 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,103 |
| Official European Union Languages | 0 | - | 4.97 | 238,453 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,814 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,097 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,021 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,595 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,971 |
| Famous French People | 0 | - | 4.06 | 35,537 |
| The Mafia Quiz | 0 | - | 4.46 | 23,317 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,652 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,826 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,762 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,418 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,593 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,624 |
| France A-Z | 0 | - | 4.16 | 38,200 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,341 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,985 |
| Switzerland A-Z | 0 | - | 4.45 | 25,641 |
| Counties of England | 0 | - | 4.97 | 796,407 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,742 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,383 |
| Celtic Nations | 0 | - | 4.69 | 46,935 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,098 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 117,851 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,824 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,498 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,430 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,549 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,486 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,792 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,655 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,970 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,385 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,561 |
| Regions of France | 0 | - | 4.72 | 120,726 |
| France Immigration by Country | 0 | - | 4.70 | 76,496 |
| German Groups of Things | 0 | - | 4.46 | 38,473 |
| Germany True or False? | 0 | - | 4.61 | 48,790 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,990 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,259 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,454 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,215 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,621 |
| Champions League Winners | 0 | - | 4.92 | 1,006,284 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,407 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,091 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,058 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,373 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,775 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,509 |
| Famous Nordic People | 0 | - | 4.34 | 20,106 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,117 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,614 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,977 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,570 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,526 |
| People on Money - England | 0 | - | 4.29 | 16,610 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,691 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,491 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,539 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,852 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,981 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,665 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,472 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,115 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,692 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,899 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,162 |
| European Geography A-Z | 0 | - | 4.29 | 49,260 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,483 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,160 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,759 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,062 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,675 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,706 |
| Word Chain - France | 0 | - | 4.38 | 42,773 |
| Germany Country Quiz | 0 | - | 4.82 | 157,808 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,301 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,987 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,909 |
| Italy Country Quiz | 0 | - | 4.82 | 123,377 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,319 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,001 |
| Italian Foods | 0 | - | 4.30 | 72,763 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,899 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,620 |
| Canary Islands | 0 | - | 4.62 | 17,476 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,950 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,693 |
| British Spellings | 0 | - | 4.06 | 99,446 |
| British Groups of Things | 0 | - | 4.25 | 82,862 |
| British Acronyms | 0 | - | 4.40 | 45,794 |
| UK Immigration by Country | 0 | - | 4.94 | 140,866 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,034 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,736 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,552 |
| Geography of Scotland | 0 | - | 4.63 | 21,613 |
| Famous Scottish People | 0 | - | 4.22 | 18,392 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,286 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,675 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,898 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,496 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,427 |
| Slavic Languages | 0 | - | 4.68 | 54,350 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,763 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,172 |
| French History Multiple Choice | 0 | - | 4.55 | 33,031 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,023 |
| History of Germany | 0 | - | 4.39 | 52,815 |
| The Trojan War | 0 | - | 4.83 | 39,717 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,190 |
| Name that Greek Letter | 0 | - | 4.93 | 323,385 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,796 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,606 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,513 |
| Roman Emperors | 0 | - | 4.95 | 119,982 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,457 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,608 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,676 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,020 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,759 |
| Malta Country Quiz | 0 | - | 4.81 | 31,045 |
| Africa A-Z | 0 | - | 4.57 | 46,599 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,042 |
| Famous Russians | 0 | - | 4.16 | 23,839 |
| History of Russia Quiz | 0 | - | 4.47 | 31,913 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,722 |
| Russian History A-Z | 0 | - | 4.38 | 31,695 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,897 |
| History of Paris | 0 | - | 4.24 | 13,646 |
| Word Chain - Germany | 0 | - | 4.31 | 22,583 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,135 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,649 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,899 |
| Famous Irish People | 0 | - | 4.05 | 45,994 |
| History of Italy | 0 | - | 4.55 | 31,968 |
| Word Chain - Italy | 0 | - | 4.07 | 23,162 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,763 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,100 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,818 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,223 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,339 |
| Name a Valid English City | 0 | - | 4.19 | 16,723 |
| London A-Z | 0 | - | 4.10 | 40,768 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,545 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,146 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,180 |
| Europe Map Quiz | 0 | - | 5.00 | 4,761,774 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,263 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,927 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,213 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,228 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,421 |
| Capitals of French Regions | 0 | - | 4.45 | 16,066 |
| Kings of France Quiz | 0 | - | 4.20 | 32,736 |
| Capitals of German States | 0 | - | 4.74 | 28,952 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,326 |
| Ancient Greek Words | 0 | - | 4.93 | 111,551 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,117 |
| British to American Food Translation | 0 | - | 3.38 | 51,963 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,441 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,654 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,130 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,665 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,125 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,691 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,402 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,890 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,358 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,078 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,018 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,855 |
| Middle East A-Z | 0 | - | 4.47 | 46,012 |
| 100 Most Common English Words | 0 | - | 4.89 | 1,316,254 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,403 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,988 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| Canada A-Z | 0 | - | 4.73 | 32,830 |
