| Netherlands Immigration by Country | 0 | - | 4.93 | 52,048 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,317 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,202 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,118 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,868 |
| States of Germany | 0 | - | 4.96 | 152,269 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,970 |
| Regions of Italy | 0 | - | 4.92 | 75,755 |
| History of The Netherlands | 0 | - | 4.46 | 17,427 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,810 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,120 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,773 |
| Famous Germans | 0 | - | 4.50 | 55,254 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,412 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,302 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,057 |
| Departments of France | 0 | - | 4.93 | 53,991 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,534 |
| England or Wales? | 0 | - | 4.94 | 45,646 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,066 |
| Official European Union Languages | 0 | - | 4.97 | 238,338 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,744 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,894 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,628 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,587 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,938 |
| Famous French People | 0 | - | 4.06 | 35,392 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,641 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,801 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,737 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,249 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,188 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,621 |
| France A-Z | 0 | - | 4.16 | 38,189 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,328 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,939 |
| Switzerland A-Z | 0 | - | 4.45 | 25,633 |
| Counties of England | 0 | - | 4.97 | 795,866 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,334 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,728 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,757 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,475 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,190 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,249 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,314 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,332 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,646 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,545 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,871 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,245 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,446 |
| Regions of France | 0 | - | 4.75 | 120,612 |
| France Immigration by Country | 0 | - | 4.70 | 76,464 |
| German Groups of Things | 0 | - | 4.46 | 38,463 |
| Germany True or False? | 0 | - | 4.61 | 48,771 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,955 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,249 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,268 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,164 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,611 |
| Champions League Winners | 0 | - | 4.92 | 1,005,619 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,324 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,022 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,842 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,282 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,691 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,474 |
| Famous Nordic People | 0 | - | 4.34 | 20,089 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,096 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,613 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,935 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,372 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,522 |
| People on Money - England | 0 | - | 4.29 | 16,608 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,684 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,440 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,346 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,665 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,838 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,485 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,326 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,972 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,581 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,817 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,072 |
| European Geography A-Z | 0 | - | 4.29 | 49,235 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,456 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,974 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,593 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,929 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,662 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,616 |
| Word Chain - France | 0 | - | 4.38 | 42,766 |
| Germany Country Quiz | 0 | - | 4.82 | 157,737 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,013 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,967 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,901 |
| Italy Country Quiz | 0 | - | 4.82 | 123,311 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,241 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,922 |
| Italian Foods | 0 | - | 4.30 | 72,727 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,808 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,540 |
| Canary Islands | 0 | - | 4.62 | 17,472 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,874 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,659 |
| British Spellings | 0 | - | 4.06 | 99,429 |
| British Groups of Things | 0 | - | 4.25 | 82,856 |
| British Acronyms | 0 | - | 4.40 | 45,782 |
| UK Immigration by Country | 0 | - | 4.94 | 140,793 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,029 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,645 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,450 |
| Geography of Scotland | 0 | - | 4.63 | 21,608 |
| Famous Scottish People | 0 | - | 4.22 | 18,392 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,149 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,650 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,611 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,784 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,483 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,401 |
| Slavic Languages | 0 | - | 4.68 | 54,319 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,747 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,132 |
| French History Multiple Choice | 0 | - | 4.55 | 33,018 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,979 |
| History of Germany | 0 | - | 4.39 | 52,799 |
| The Trojan War | 0 | - | 4.83 | 39,684 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,810 |
| Name that Greek Letter | 0 | - | 4.93 | 323,285 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,710 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,591 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,480 |
| Roman Emperors | 0 | - | 4.95 | 119,843 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,444 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,600 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,657 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,013 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,729 |
| Malta Country Quiz | 0 | - | 4.81 | 31,032 |
| Africa A-Z | 0 | - | 4.57 | 46,592 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,982 |
| Famous Russians | 0 | - | 4.16 | 23,833 |
| History of Russia Quiz | 0 | - | 4.47 | 31,904 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,713 |
| Russian History A-Z | 0 | - | 4.38 | 31,660 |
| Movies Set in France | 0 | - | 4.26 | 13,118 |
| French Inventions | 0 | - | 4.08 | 13,893 |
| History of Paris | 0 | - | 4.24 | 13,644 |
| Word Chain - Germany | 0 | - | 4.31 | 22,576 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,127 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,371 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,776 |
| Famous Irish People | 0 | - | 4.05 | 45,989 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Word Chain - Italy | 0 | - | 4.07 | 23,157 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,723 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,094 |
| Amsterdam Trivia | 0 | - | 4.46 | 15,812 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,202 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,334 |
| Name a Valid English City | 0 | - | 4.19 | 16,712 |
| London A-Z | 0 | - | 4.10 | 40,755 |
| Asian Cities A-Z by Clue | 0 | - | 4.49 | 35,499 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,044 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,149 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,343 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,243 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,909 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,197 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,214 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,406 |
| Capitals of French Regions | 0 | - | 4.45 | 16,056 |
| Kings of France Quiz | 0 | - | 4.20 | 32,704 |
| Capitals of German States | 0 | - | 4.74 | 28,944 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,309 |
| Ancient Greek Words | 0 | - | 4.93 | 111,489 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,076 |
| British to American Food Translation | 0 | - | 3.38 | 51,955 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,429 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,641 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,941 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,586 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,096 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,656 |
| Asian Geography By Letter - M | 0 | - | 4.47 | 61,384 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 57,855 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,328 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,876 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 42,987 |
| Asian Geography By Letter - O | 0 | - | 4.65 | 31,817 |
| Middle East A-Z | 0 | - | 4.47 | 46,001 |
| 100 Most Common English Words | 0 | - | 4.88 | 1,315,365 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,476 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,541 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| Canada A-Z | 0 | - | 4.73 | 32,798 |
