| European Countries by First 2 Letters | 0 | - | 4.95 | 532,218 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,671 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,400 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,374 |
| States of Germany | 0 | - | 4.95 | 154,288 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,632 |
| Regions of Italy | 0 | - | 4.92 | 76,939 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,751 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,199 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,702 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,831 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,663 |
| Official European Union Languages | 0 | - | 4.97 | 239,645 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,557 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,593 |
| The Vikings! | 0 | - | 4.46 | 28,400 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,277 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,034 |
| History of Italy | 0 | - | 4.55 | 32,133 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,290 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,808 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,412 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,492 |
| Celtic Nations | 0 | - | 4.61 | 47,082 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,960 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,511 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,425 |
| Counties of England | 0 | - | 4.97 | 802,216 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,074 |
| Regions of France | 0 | - | 4.70 | 121,939 |
| France Immigration by Country | 0 | - | 4.70 | 76,890 |
| Famous Germans | 0 | - | 4.50 | 55,750 |
| German Groups of Things | 0 | - | 4.47 | 38,619 |
| Germany True or False? | 0 | - | 4.61 | 48,996 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,426 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,307 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,705 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,396 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,736 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,648 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,704 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,727 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,448 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,881 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,294 |
| History of Austria | 0 | - | 4.70 | 17,967 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,533 |
| Geography of the French Empire | 0 | - | 4.45 | 27,207 |
| The French Revolution | 0 | - | 4.47 | 24,133 |
| France Multiple Choice | 0 | - | 4.39 | 40,832 |
| History of France | 0 | - | 4.61 | 57,553 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,695 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,554 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,358 |
| The Portuguese Empire | 0 | - | 4.58 | 12,099 |
| American to British Word Translation | 0 | - | 4.14 | 139,629 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,042 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,470 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,902 |
| Champions League Winners | 0 | - | 4.92 | 1,015,066 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,561 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,744 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,719 |
| Departments of France | 0 | - | 4.93 | 55,035 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,724 |
| England or Wales? | 0 | - | 4.94 | 45,934 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,932 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,732 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,715 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,242 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 120,022 |
| Slavic Languages | 0 | - | 4.68 | 54,663 |
| Famous French People | 0 | - | 4.07 | 36,057 |
| Word Chain - France | 0 | - | 4.38 | 42,919 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,726 |
| Italian Foods | 0 | - | 4.30 | 73,209 |
| The Mafia Quiz | 0 | - | 4.46 | 23,429 |
| History of The Netherlands | 0 | - | 4.46 | 17,542 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,610 |
| Canary Islands | 0 | - | 4.62 | 17,519 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,024 |
| British Spellings | 0 | - | 4.06 | 99,588 |
| British Groups of Things | 0 | - | 4.26 | 82,994 |
| British Acronyms | 0 | - | 4.40 | 45,924 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,097 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,089 |
| Geography of Scotland | 0 | - | 4.63 | 21,725 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,881 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,052 |
| Geography of Germany | 0 | - | 4.35 | 17,262 |
| History of Germany | 0 | - | 4.39 | 52,965 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,355 |
| Name that Greek Letter | 0 | - | 4.93 | 324,852 |
| History of Spain | 0 | - | 4.23 | 21,157 |
| Languages of Spain | 0 | - | 4.36 | 23,422 |
| British to American Word Translation | 0 | - | 3.74 | 255,312 |
| British Foods by Description | 0 | - | 3.94 | 48,383 |
| British and American Word Differences | 0 | - | 2.63 | 46,925 |
| British Geography Quiz #2 | 0 | - | 4.30 | 28,207 |
| Bridges of London | 0 | - | 4.17 | 10,139 |
| British Sport Trivia | 0 | - | 4.39 | 20,520 |
| Famous Welsh People | 0 | - | 4.34 | 11,671 |
| Malta Country Quiz | 0 | - | 4.81 | 31,221 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,754 |
| History of Russia Quiz | 0 | - | 4.47 | 31,997 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,854 |
| Movies Set in France | 0 | - | 4.26 | 13,147 |
| French Inventions | 0 | - | 4.10 | 13,923 |
| History of Paris | 0 | - | 4.24 | 13,680 |
| Word Chain - Germany | 0 | - | 4.31 | 22,676 |
| The Trojan War | 0 | - | 4.83 | 39,955 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,837 |
| Word Chain - Italy | 0 | - | 4.07 | 23,212 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,158 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,549 |
| Roman Emperors | 0 | - | 4.95 | 121,087 |
| Famous Nordic People | 0 | - | 4.34 | 20,287 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,839 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,641 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,073 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,395 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,573 |
| People on Money - England | 0 | - | 4.29 | 16,643 |
| Name a Valid English City | 0 | - | 4.19 | 16,813 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,525 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,236 |
| Australian Capitals | 0 | - | 4.92 | 62,822 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,808 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,147 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,431 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,147 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,796 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,185 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,911 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,426 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,639 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,360 |
| Europe Map Quiz | 0 | - | 5.00 | 4,784,785 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,489 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,148 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,433 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,401 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,256 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,505 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,706 |
| Capitals of French Regions | 0 | - | 4.45 | 16,170 |
| Capitals of German States | 0 | - | 4.74 | 29,059 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,527 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,437 |
| Ancient Greek Words | 0 | - | 4.93 | 112,370 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,133 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,705 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,729 |
| European Physical Geography | 0 | - | 4.26 | 33,587 |
| Geography of Russia | 0 | - | 4.57 | 21,591 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,107 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,503 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,477 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,331 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,436 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,786 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,446 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,191 |
| Geography of the British Empire | 0 | - | 4.48 | 39,836 |
| Champions League Top 4 | 0 | - | 4.78 | 138,764 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,932 |
| Asia Map Quiz | 0 | - | 4.99 | 924,332 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,565 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,385 |
| Australia Map Quiz | 0 | - | 4.95 | 346,022 |
| United States Map Quiz | 0 | - | 4.98 | 4,169,998 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,748 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,884 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,584 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,040 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,856 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,171 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,957 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,672 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,359 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,984 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,401 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,449 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,861 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,738 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,966 |
| European Geography A-Z | 0 | - | 4.29 | 49,464 |
| Country Codes of Europe | 0 | - | 3.43 | 13,804 |
| The Only European Country ... | 0 | - | 4.91 | 218,727 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,379 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,022 |
| Austria... or Australia? | 0 | - | 4.68 | 104,737 |
| Presidents of France | 0 | - | 4.25 | 24,322 |
| French Foods | 0 | - | 4.00 | 27,766 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,208 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,029 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,660 |
| Italian Inventions | 0 | - | 3.81 | 18,470 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,613 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,110 |
