| Germany Multiple Choice | 0 | - | 4.84 | 53,918 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 524,762 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 207,960 |
| Italy Multiple Choice | 0 | - | 4.74 | 102,892 |
| States of Germany | 0 | - | 4.96 | 149,069 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,687 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,353 |
| Regions of Italy | 0 | - | 4.92 | 74,248 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,533 |
| Regions of Spain Quiz | 0 | - | 4.90 | 111,725 |
| Cantons of Switzerland | 0 | - | 4.98 | 49,810 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,342 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,329 |
| Official European Union Languages | 0 | - | 4.98 | 235,843 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,362 |
| Germany True or False? | 0 | - | 4.61 | 48,434 |
| England or Wales? | 0 | - | 4.94 | 45,173 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 423,861 |
| France Multiple Choice | 0 | - | 4.38 | 40,576 |
| The Vikings! | 0 | - | 4.45 | 28,205 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,349 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,455 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,492 |
| History of Italy | 0 | - | 4.55 | 31,753 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,418 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,919 |
| Australia True or False | 0 | - | 4.87 | 56,319 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,167 |
| Celtic Nations | 0 | - | 4.69 | 46,744 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 86,589 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 306,968 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 166,406 |
| Counties of England | 0 | - | 4.97 | 786,276 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 347,386 |
| Regions of France | 0 | - | 4.78 | 118,526 |
| France Immigration by Country | 0 | - | 4.72 | 75,750 |
| Famous Germans | 0 | - | 4.50 | 54,417 |
| German Groups of Things | 0 | - | 4.46 | 38,235 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,219 |
| Famous Italians by Clue | 0 | - | 4.45 | 87,993 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,515 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,979 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,651 |
| Australia... or New Zealand? | 0 | - | 4.83 | 60,834 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,070 |
| Catholic Countries in Europe | 0 | - | 4.83 | 93,871 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,980 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 75,798 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 79,234 |
| Federal Subjects of Russia | 0 | - | 4.94 | 142,832 |
| History of Austria | 0 | - | 4.70 | 17,705 |
| Regions of France Map Quiz | 0 | - | 4.96 | 142,635 |
| Geography of the French Empire | 0 | - | 4.47 | 26,865 |
| The French Revolution | 0 | - | 4.46 | 23,699 |
| History of France | 0 | - | 4.59 | 55,441 |
| States of Germany Map Quiz | 0 | - | 4.91 | 131,197 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,323 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,530 |
| The Portuguese Empire | 0 | - | 4.54 | 11,954 |
| American to British Word Translation | 0 | - | 4.05 | 116,845 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,633 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 92,650 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,533 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,106 |
| Champions League Winners | 0 | - | 4.92 | 991,903 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 229,441 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 273,376 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,312 |
| Departments of France | 0 | - | 4.93 | 52,196 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,256 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 127,739 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,361 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,559 |
| Word Scramble - European Countries | 0 | - | 4.74 | 140,279 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,215 |
| Slavic Languages | 0 | - | 4.67 | 53,807 |
| Word Chain - France | 0 | - | 4.38 | 42,513 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,353 |
| Italian Foods | 0 | - | 4.30 | 71,970 |
| The Mafia Quiz | 0 | - | 4.46 | 23,156 |
| History of The Netherlands | 0 | - | 4.46 | 17,253 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,171 |
| Canary Islands | 0 | - | 4.61 | 17,369 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 28,930 |
| British Spellings Quiz | 0 | - | 4.08 | 98,641 |
| British Groups of Things | 0 | - | 4.25 | 82,629 |
| British Acronyms | 0 | - | 4.39 | 45,552 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,911 |
| Geography of Scotland | 0 | - | 4.63 | 21,426 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,451 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,411 |
| Geography of Germany | 0 | - | 4.35 | 17,031 |
| History of Germany | 0 | - | 4.39 | 52,524 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 639,357 |
| Name that Greek Letter | 0 | - | 4.94 | 320,910 |
| History of Spain | 0 | - | 4.29 | 20,969 |
| Languages of Spain | 0 | - | 4.36 | 23,086 |
| British to American Word Translation | 0 | - | 3.74 | 253,163 |
| British Foods by Description | 0 | - | 3.94 | 48,197 |
| British and American Word Differences | 0 | - | 2.67 | 45,875 |
| British Geography Quiz #2 | 0 | - | 4.29 | 27,474 |
| Bridges of London | 0 | - | 4.17 | 10,038 |
| British Sport Trivia | 0 | - | 4.37 | 20,320 |
| Famous Welsh People | 0 | - | 4.21 | 9,752 |
| Malta Country Quiz | 0 | - | 4.81 | 30,715 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 265,932 |
| Canada Multiple Choice Quiz | 0 | - | 4.53 | 48,690 |
| Top European Languages on a Map | 0 | - | 4.77 | 130,673 |
| History of Russia Quiz | 0 | - | 4.49 | 31,724 |
| Famous French People | 0 | - | 4.12 | 27,685 |
| Movies Set in France | 0 | - | 4.26 | 13,056 |
| French Inventions | 0 | - | 4.08 | 13,845 |
| History of Paris | 0 | - | 4.24 | 13,597 |
| Word Chain - Germany | 0 | - | 4.31 | 22,438 |
| The Trojan War | 0 | - | 4.83 | 39,289 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.84 | 109,845 |
| Word Chain - Italy | 0 | - | 4.07 | 23,049 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,009 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,811 |
| Roman Emperors | 0 | - | 4.96 | 117,882 |
| Famous Nordic People | 0 | - | 4.34 | 19,736 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,639 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,518 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,267 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,210 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,432 |
| People on Money - England | 0 | - | 4.29 | 16,544 |
| Name a Valid English City | 0 | - | 4.19 | 16,600 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,105 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,478 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,431 |
| Australian Capitals | 0 | - | 4.92 | 62,513 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,110 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 110,647 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,596 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,437 |
| European Geography By Letter - L | 0 | - | 4.52 | 111,731 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,282 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,477 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,460 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,894 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,032 |
| Europe Map Quiz | 0 | - | 5.00 | 4,717,523 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,876 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,471 |
| Europe Geography Quiz #4 | 0 | - | 4.56 | 69,827 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,873 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 99,435 |
| Four Letter European Geography #1 | 0 | - | 4.45 | 26,929 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,435 |
| Capitals of French Regions | 0 | - | 4.45 | 15,948 |
| Capitals of German States | 0 | - | 4.74 | 28,737 |
| Chancellors of Germany, 1949–present | 0 | - | 4.59 | 23,002 |
| Olympian Gods Quiz | 0 | - | 4.96 | 485,473 |
| Ancient Greek Words | 0 | - | 4.92 | 110,243 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,140 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 289,872 |
| Africa Map Quiz | 0 | - | 5.00 | 2,098,660 |
| Oceania Map Quiz | 0 | - | 4.98 | 632,103 |
| European Physical Geography | 0 | - | 4.26 | 33,316 |
| Geography of Russia | 0 | - | 4.57 | 21,377 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,679 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 432,013 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,373 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,013 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,318 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,116 |
| Countries the UK Declared War On | 0 | - | 4.61 | 121,509 |
| Geography of the British Empire | 0 | - | 4.48 | 39,415 |
| Champions League Top 4 | 0 | - | 4.77 | 132,650 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,434,330 |
| Asia Map Quiz | 0 | - | 4.99 | 902,920 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,112 |
| Countries of Africa | 0 | - | 5.00 | 2,496,070 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,427 |
| African East Coast | 0 | - | 4.96 | 94,636 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,555 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,478 |
| Australia Map Quiz | 0 | - | 4.94 | 341,713 |
| United States Map Quiz | 0 | - | 4.98 | 4,134,772 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,154 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 91,770 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,091 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 361,489 |
| European Geography By Letter - E | 0 | - | 4.23 | 111,998 |
| European Geography By Letter - F | 0 | - | 4.16 | 91,260 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,686 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,066 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,311 |
| European Geography By Letter - K | 0 | - | 4.14 | 68,972 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,775 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,197 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,288 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,400 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 112,830 |
| European Geography A-Z | 0 | - | 4.28 | 48,865 |
| Country Codes of Europe | 0 | - | 3.46 | 13,625 |
| The Only European Country ... | 0 | - | 4.91 | 212,689 |
| European Countries NOT in NATO | 0 | - | 4.87 | 58,852 |
| Austria... or Australia? | 0 | - | 4.68 | 103,658 |
