| Germany Multiple Choice | 0 | - | 4.84 | 54,635 |
| Germany True or False? | 0 | - | 4.61 | 48,975 |
| Italy True or False? | 0 | - | 4.42 | 47,566 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,772 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,902 |
| Australia True or False | 0 | - | 4.87 | 57,083 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,358 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,006 |
| States of Germany | 0 | - | 4.95 | 154,084 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,566 |
| Regions of Italy | 0 | - | 4.92 | 76,764 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,225 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,676 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,068 |
| Spain True or False? | 0 | - | 4.58 | 30,720 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,634 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,814 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,596 |
| Official European Union Languages | 0 | - | 4.97 | 239,488 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,486 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,317 |
| France Multiple Choice | 0 | - | 4.39 | 40,816 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,238 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,009 |
| Has Anyone Ever Done It #1 | 0 | - | 4.81 | 55,537 |
| History of Italy | 0 | - | 4.55 | 32,115 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,788 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,391 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,477 |
| Celtic Nations | 0 | - | 4.61 | 47,068 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,905 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,291 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,102 |
| Regions of France | 0 | - | 4.70 | 121,802 |
| France Immigration by Country | 0 | - | 4.70 | 76,844 |
| Famous Germans | 0 | - | 4.50 | 55,700 |
| German Groups of Things | 0 | - | 4.47 | 38,603 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,360 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,238 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,649 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,384 |
| Counties of England | 0 | - | 4.97 | 801,514 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,670 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 360,326 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,590 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,641 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,323 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,752 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,026 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,395 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,594 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,399 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,720 |
| Champions League Winners | 0 | - | 4.92 | 1,013,763 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,700 |
| History of Austria | 0 | - | 4.70 | 17,959 |
| Geography of the French Empire | 0 | - | 4.45 | 27,200 |
| The French Revolution | 0 | - | 4.47 | 24,120 |
| History of France | 0 | - | 4.61 | 57,493 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,546 |
| The Vikings! | 0 | - | 4.46 | 28,395 |
| The Portuguese Empire | 0 | - | 4.58 | 12,096 |
| American to British Word Translation | 0 | - | 4.14 | 139,563 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,028 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,227 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,519 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,509 |
| Famous French People | 0 | - | 4.07 | 36,019 |
| Departments of France | 0 | - | 4.93 | 54,903 |
| Word Chain - France | 0 | - | 4.38 | 42,905 |
| Italian Foods | 0 | - | 4.30 | 73,157 |
| The Mafia Quiz | 0 | - | 4.46 | 23,413 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,711 |
| History of The Netherlands | 0 | - | 4.46 | 17,531 |
| Canary Islands | 0 | - | 4.62 | 17,514 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,981 |
| British Spellings | 0 | - | 4.06 | 99,569 |
| British Groups of Things | 0 | - | 4.25 | 82,977 |
| British Acronyms | 0 | - | 4.40 | 45,905 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,089 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,060 |
| Geography of Scotland | 0 | - | 4.63 | 21,709 |
| England or Wales? | 0 | - | 4.94 | 45,905 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,707 |
| Afghanistan True or False? | 0 | - | 4.54 | 25,466 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,711 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,705 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,165 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,330 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,818 |
| Slavic Languages | 0 | - | 4.67 | 54,627 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,021 |
| French History Multiple Choice | 0 | - | 4.55 | 33,189 |
| Geography of Germany | 0 | - | 4.35 | 17,250 |
| History of Germany | 0 | - | 4.39 | 52,950 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,878 |
| Name that Greek Letter | 0 | - | 4.93 | 324,722 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,710 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,594 |
| History of Spain | 0 | - | 4.23 | 21,147 |
| Languages of Spain | 0 | - | 4.36 | 23,403 |
| British to American Word Translation | 0 | - | 3.74 | 255,283 |
| British Foods by Description | 0 | - | 3.94 | 48,368 |
| British and American Word Differences | 0 | - | 2.63 | 46,917 |
| British Geography Quiz #2 | 0 | - | 4.29 | 28,196 |
| Bridges of London | 0 | - | 4.17 | 10,136 |
| British Sport Trivia | 0 | - | 4.37 | 20,512 |
| Famous Welsh People | 0 | - | 4.34 | 11,658 |
| Malta Country Quiz | 0 | - | 4.81 | 31,207 |
| San Marino Country Quiz | 0 | - | 4.73 | 29,091 |
| Has Anyone Ever Done It #3 | 0 | - | 4.56 | 51,463 |
| Has Anyone Ever Done It #2 | 0 | - | 4.46 | 47,307 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,670 |
| History of Russia Quiz | 0 | - | 4.47 | 31,988 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,837 |
| Movies Set in France | 0 | - | 4.26 | 13,144 |
| French Inventions | 0 | - | 4.10 | 13,919 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,596 |
| History of Paris | 0 | - | 4.24 | 13,670 |
| Word Chain - Germany | 0 | - | 4.31 | 22,661 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,458 |
| The Trojan War | 0 | - | 4.83 | 39,940 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,720 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,204 |
| Word Chain - Italy | 0 | - | 4.07 | 23,208 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,150 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,503 |
| Roman Emperors | 0 | - | 4.95 | 120,940 |
| Famous Nordic People | 0 | - | 4.34 | 20,253 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,635 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,050 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,389 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,568 |
| People on Money - England | 0 | - | 4.29 | 16,637 |
| Name a Valid English City | 0 | - | 4.19 | 16,799 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,357 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,803 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,082 |
| General Knowledge True False #1 | 0 | - | 4.58 | 55,680 |
| General Knowledge True False #2 | 0 | - | 4.44 | 36,953 |
| General Knowledge True False #3 | 0 | - | 4.49 | 37,256 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,701 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,084 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,089 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,090 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,747 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,091 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,870 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,385 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,599 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,298 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,663 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,459 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,115 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,412 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,378 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,218 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,447 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,667 |
| Capitals of French Regions | 0 | - | 4.45 | 16,157 |
| Capitals of German States | 0 | - | 4.74 | 29,041 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,507 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,109 |
| Ancient Greek Words | 0 | - | 4.93 | 112,284 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,541 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,944 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,595 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,160 |
| Australian Capitals | 0 | - | 4.92 | 62,809 |
| European Physical Geography | 0 | - | 4.26 | 33,579 |
| Geography of Russia | 0 | - | 4.57 | 21,577 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,085 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,167 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,423 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,323 |
| Sweden True or False? | 0 | - | 4.53 | 40,489 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,284 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,423 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,775 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,440 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,137 |
| Geography of the British Empire | 0 | - | 4.48 | 39,821 |
| Champions League Top 4 | 0 | - | 4.77 | 138,380 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,283 |
| Asia Map Quiz | 0 | - | 4.99 | 923,406 |
| Africa Map Quiz | 0 | - | 5.00 | 2,126,403 |
| Has Anyone Ever Done It - U.S. Sports | 0 | - | 4.43 | 16,473 |
| Country Confusion | 0 | - | 4.98 | 62,665 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,166 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,306 |
| Australia Map Quiz | 0 | - | 4.95 | 345,850 |
| United States Map Quiz | 0 | - | 4.98 | 4,168,278 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,526 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,850 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,369 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,805 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,820 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,121 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,925 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,632 |
