| Famous Germans | 0 | - | 4.50 | 55,747 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,298 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,190 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,665 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,956 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,636 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,431 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,304 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,869 |
| Famous French People | 0 | - | 4.07 | 36,052 |
| States of Germany | 0 | - | 4.95 | 154,277 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,625 |
| Regions of Italy | 0 | - | 4.92 | 76,926 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,744 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,179 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,697 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,133 |
| Departments of France | 0 | - | 4.93 | 54,981 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,723 |
| England or Wales? | 0 | - | 4.94 | 45,931 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,652 |
| Official European Union Languages | 0 | - | 4.97 | 239,630 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,550 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,563 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,324 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,729 |
| Famous Nordic People | 0 | - | 4.34 | 20,285 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,641 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,272 |
| The Mafia Quiz | 0 | - | 4.46 | 23,427 |
| History of The Netherlands | 0 | - | 4.46 | 17,539 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,029 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,082 |
| Famous Scottish People | 0 | - | 4.22 | 18,434 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,490 |
| Celtic Nations | 0 | - | 4.61 | 47,082 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,782 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,135 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,397 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,142 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,785 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,170 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,905 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,423 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,636 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,355 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,252 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,497 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,391 |
| Regions of France | 0 | - | 4.70 | 121,916 |
| France A-Z | 0 | - | 4.16 | 38,323 |
| France Immigration by Country | 0 | - | 4.70 | 76,885 |
| German Groups of Things | 0 | - | 4.47 | 38,618 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,669 |
| Germany True or False? | 0 | - | 4.61 | 48,995 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,395 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,419 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,694 |
| Switzerland A-Z | 0 | - | 4.45 | 25,755 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,395 |
| Counties of England | 0 | - | 4.97 | 802,152 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,729 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,794 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,975 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,724 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,700 |
| Famous Russians | 0 | - | 4.16 | 23,903 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,271 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,518 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,689 |
| Famous Irish People | 0 | - | 4.05 | 46,058 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,220 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,461 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,886 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,573 |
| People on Money - England | 0 | - | 4.29 | 16,643 |
| Champions League Winners | 0 | - | 4.92 | 1,014,888 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,917 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,723 |
| Austria Country Quiz | 0 | - | 4.57 | 60,017 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,352 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,828 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,850 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,163 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,952 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,665 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,354 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,979 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,395 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,446 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,736 |
| European Geography A-Z | 0 | - | 4.29 | 49,460 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,513 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,717 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,689 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,906 |
| Austria... or Australia? | 0 | - | 4.68 | 104,733 |
| France Cities Map Quiz | 0 | - | 4.95 | 167,687 |
| Word Chain - France | 0 | - | 4.38 | 42,917 |
| Germany Country Quiz | 0 | - | 4.82 | 158,732 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,994 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,206 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,025 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,132 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,955 |
| Italian Foods | 0 | - | 4.30 | 73,204 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,405 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,759 |
| Canary Islands | 0 | - | 4.62 | 17,515 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,736 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,021 |
| British Spellings | 0 | - | 4.06 | 99,587 |
| British Groups of Things | 0 | - | 4.26 | 82,991 |
| British Acronyms | 0 | - | 4.40 | 45,922 |
| UK Immigration by Country | 0 | - | 4.94 | 141,598 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,096 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,852 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,625 |
| Geography of Scotland | 0 | - | 4.63 | 21,725 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,899 |
| Famous Australians by Description | 0 | - | 4.23 | 28,127 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,715 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,228 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 119,558 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,814 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,876 |
| Slavic Languages | 0 | - | 4.68 | 54,660 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,043 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,897 |
| French History Multiple Choice | 0 | - | 4.55 | 33,207 |
| History of Germany | 0 | - | 4.39 | 52,964 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,306 |
| Name that Greek Letter | 0 | - | 4.93 | 324,829 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,724 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,583 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,609 |
| Most Common First Names in Spain | 0 | - | 4.32 | 55,158 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,810 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,947 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,083 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,056 |
| Malta Country Quiz | 0 | - | 4.81 | 31,220 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,746 |
| History of Russia Quiz | 0 | - | 4.47 | 31,996 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,850 |
| Russian History A-Z | 0 | - | 4.35 | 32,163 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,567 |
| Movies Set in France | 0 | - | 4.26 | 13,147 |
| French Inventions | 0 | - | 4.10 | 13,923 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,648 |
| History of Paris | 0 | - | 4.24 | 13,676 |
| Word Chain - Germany | 0 | - | 4.31 | 22,675 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,509 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,228 |
| The Trojan War | 0 | - | 4.83 | 39,951 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,823 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,342 |
| History of Italy | 0 | - | 4.55 | 32,132 |
| Word Chain - Italy | 0 | - | 4.07 | 23,212 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,288 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,158 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,548 |
| Roman Emperors | 0 | - | 4.95 | 121,074 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,803 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,412 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,394 |
| Name a Valid English City | 0 | - | 4.19 | 16,812 |
| London A-Z | 0 | - | 4.10 | 40,870 |
| Asian Cities A-Z by Clue | 0 | - | 4.52 | 42,937 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,507 |
| Famous Chinese People | 0 | - | 4.09 | 11,920 |
| Africa A-Z | 0 | - | 4.57 | 46,755 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,228 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,961 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,491 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,402 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,480 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,141 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,426 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,395 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,500 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,704 |
| Capitals of French Regions | 0 | - | 4.45 | 16,164 |
| Kings of France Quiz | 0 | - | 4.20 | 32,903 |
| Capitals of German States | 0 | - | 4.74 | 29,059 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,525 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,402 |
| Ancient Greek Words | 0 | - | 4.93 | 112,357 |
| British to American Food Translation | 0 | - | 3.38 | 52,025 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,555 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,116 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,697 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,398 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 66,005 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,617 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,148 |
| Asian Geography by Letter - T | 0 | - | 4.52 | 57,608 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,265 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,240 |
| Middle East A-Z | 0 | - | 4.47 | 46,226 |
