| European Countries by First 2 Letters | 0 | - | 4.95 | 526,458 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,642 |
| Departments of France | 0 | - | 4.93 | 52,862 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,377 |
| England or Wales? | 0 | - | 4.94 | 45,337 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,597 |
| Official European Union Languages | 0 | - | 4.97 | 236,845 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,721 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,323 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,525 |
| Mythical Creatures Quiz #1 | 0 | - | 4.92 | 704,453 |
| The Trojan War | 0 | - | 4.83 | 39,445 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,593 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,065 |
| Roman Emperors | 0 | - | 4.95 | 118,525 |
| English Words of Arabic Origin | 0 | - | 4.54 | 49,612 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,552 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,575 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,875 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,903 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,006 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,056 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,129 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,246 |
| Celtic Nations | 0 | - | 4.69 | 46,818 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,287 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,247 |
| Champions League Winners | 0 | - | 4.92 | 996,746 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,354 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,249 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,292 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,835 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,071 |
| Countries Bordering France | 0 | - | 4.83 | 399,425 |
| German Loan Words | 0 | - | 4.27 | 135,464 |
| States of Germany | 0 | - | 4.96 | 150,151 |
| Germany Immigration by Country | 0 | - | 4.84 | 80,055 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,133 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,541 |
| Regions of Italy | 0 | - | 4.92 | 74,764 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,848 |
| Nordic Cities Map Quiz | 0 | - | 4.74 | 89,775 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,710 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,408 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,219 |
| American to British Word Translation | 0 | - | 4.06 | 127,848 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,237 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,495 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,160 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,633 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,299 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,235 |
| Austria... or Australia? | 0 | - | 4.68 | 103,889 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,248 |
| Germany Country Quiz | 0 | - | 4.82 | 156,607 |
| Germany Cities Map Quiz | 0 | - | 4.86 | 125,185 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,781 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,774 |
| Italy Country Quiz | 0 | - | 4.82 | 122,255 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,431 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,111 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,975 |
| Denmark Country Quiz | 0 | - | 4.78 | 75,452 |
| Finland Country Quiz | 0 | - | 4.50 | 59,141 |
| Norway Country Quiz | 0 | - | 4.44 | 76,658 |
| Iceland Country Quiz | 0 | - | 4.69 | 42,865 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,099 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,689 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,949 |
| British Spellings | 0 | - | 4.07 | 99,241 |
| UK Immigration by Country | 0 | - | 4.94 | 139,696 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 138,233 |
| British Monopoly Board | 0 | - | 4.52 | 41,040 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,339 |
| Name the English Monarchs | 0 | - | 4.92 | 498,103 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,548 |
| Native American Words | 0 | - | 4.26 | 24,706 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,453 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,603 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,013 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,112 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,853 |
| Slavic Languages | 0 | - | 4.67 | 53,996 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,415 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,556 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,799 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 102,705 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,964 |
| France A-Z | 0 | - | 4.16 | 38,065 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,550 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,820 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,417 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 94,407 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,093 |
| Name that Greek Letter | 0 | - | 4.94 | 321,731 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,932 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,445 |
| Counties of Ireland | 0 | - | 4.92 | 193,149 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,435 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,470 |
| Countries that Beat Italy | 0 | - | 4.85 | 53,895 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,369 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,544 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,682 |
| Roman Names for Places | 0 | - | 4.62 | 57,890 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,099 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,130 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,695 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,258 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,475 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,354 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,484 |
| Switzerland A-Z | 0 | - | 4.45 | 25,512 |
| British to American Word Translation | 0 | - | 3.74 | 253,978 |
| British Foods by Description | 0 | - | 3.94 | 48,247 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,451 |
| British and American Word Differences | 0 | - | 2.67 | 46,352 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,925 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,314 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 128,692 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,458 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,357 |
| World Capitals Closest to London | 0 | - | 4.87 | 109,774 |
| 50 Busiest Air Routes from London | 0 | - | 4.86 | 95,786 |
| Japanese Loanwords | 0 | - | 4.47 | 84,362 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,795 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,165 |
| History of Russia Quiz | 0 | - | 4.49 | 31,797 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,577 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,099 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,703 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,988 |
| Olympian Gods Quiz | 0 | - | 4.96 | 496,424 |
| Famous Irish People | 0 | - | 4.05 | 45,858 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,791 |
| History of Italy | 0 | - | 4.55 | 31,824 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,187 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,489 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 34,687 |
| Sweden Country Quiz | 0 | - | 4.35 | 67,738 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,360 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,989 |
| Geography of Spain | 0 | - | 4.59 | 21,969 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,810 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,581 |
| London A-Z | 0 | - | 4.10 | 40,642 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,579 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,423 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,926 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,873 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,734 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,240 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,934 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,692 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,644 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,033 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,327 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,395 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,003 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,634 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,959 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,000 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,611 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,167 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,623 |
| Capitals of French Regions | 0 | - | 4.45 | 15,988 |
| Regions of France | 0 | - | 4.78 | 119,309 |
| France Immigration by Country | 0 | - | 4.72 | 75,981 |
| Kings of France Quiz | 0 | - | 4.20 | 32,561 |
| Famous Germans | 0 | - | 4.50 | 54,633 |
| German Groups of Things | 0 | - | 4.46 | 38,308 |
| Capitals of German States | 0 | - | 4.74 | 28,815 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,104 |
| Germany True or False? | 0 | - | 4.61 | 48,539 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,479 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,425 |
| Ancient Greek Words | 0 | - | 4.92 | 110,727 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,552 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,117 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,638 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,847 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,060 |
| British to American Food Translation | 0 | - | 3.38 | 51,841 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,002 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,400 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,165 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,377 |
| Famous Scottish People | 0 | - | 4.22 | 18,329 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,149 |
| Mythical Creatures #2 | 0 | - | 4.04 | 111,101 |
| Christmas Vocabulary | 0 | - | 4.06 | 33,347 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,768 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,520 |
| Australian Capitals | 0 | - | 4.92 | 62,594 |
| European Physical Geography | 0 | - | 4.26 | 33,376 |
| Geography of Russia | 0 | - | 4.57 | 21,429 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,784 |
| History of Austria | 0 | - | 4.70 | 17,758 |
| Austria Country Quiz | 0 | - | 4.57 | 59,362 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,260 |
