| Europe Geography Decoder | 0 | - | 4.86 | 70,152 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,445 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,246 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,939 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,456 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,983 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,517 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,684 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,961 |
| Departments of France | 0 | - | 4.93 | 54,607 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,637 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,401 |
| Official European Union Languages | 0 | - | 4.97 | 239,084 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,237 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,510 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,907 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,954 |
| The Trojan War | 0 | - | 4.83 | 39,846 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,400 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,003 |
| Roman Emperors | 0 | - | 4.95 | 120,538 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,939 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,715 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,697 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,858 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,520 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,250 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,056 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,787 |
| Celtic Nations | 0 | - | 4.69 | 47,011 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,390 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,045 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,344 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,319 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,581 |
| German Groups of Things | 0 | - | 4.46 | 38,552 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,439 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,460 |
| Champions League Winners | 0 | - | 4.92 | 1,010,877 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,352 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,216 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,471 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,481 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,279 |
| Countries Bordering France | 0 | - | 4.83 | 403,830 |
| States of Germany | 0 | - | 4.95 | 153,545 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,360 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,914 |
| Regions of Italy | 0 | - | 4.92 | 76,416 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,513 |
| The Vikings! | 0 | - | 4.46 | 28,375 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,646 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,488 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,205 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,439 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 323,422 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,010 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,774 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,631 |
| European Geographic Groups of Four | 0 | - | 4.58 | 16,483 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,341 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,815 |
| Austria... or Australia? | 0 | - | 4.68 | 104,564 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,291 |
| Word Chain - France | 0 | - | 4.38 | 42,866 |
| Germany Country Quiz | 0 | - | 4.83 | 158,316 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,736 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,115 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,968 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,803 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,701 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,464 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,178 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,348 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,378 |
| British Groups of Things | 0 | - | 4.25 | 82,931 |
| UK Immigration by Country | 0 | - | 4.94 | 141,246 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,064 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,342 |
| British Monopoly Board | 0 | - | 4.52 | 41,209 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,154 |
| Name the English Monarchs | 0 | - | 4.91 | 504,495 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,222 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,481 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,223 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,716 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,668 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,833 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,686 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,692 |
| Slavic Languages | 0 | - | 4.68 | 54,515 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,650 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,721 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,190 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,098 |
| France A-Z | 0 | - | 4.16 | 38,283 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,993 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,312 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,431 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,834 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,602 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,272 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,605 |
| Name that Greek Letter | 0 | - | 4.93 | 324,334 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,996 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,741 |
| Counties of Ireland | 0 | - | 4.92 | 196,301 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,682 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,063 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,707 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,465 |
| Ancient Roman Trivia #2 | 0 | - | 4.59 | 41,790 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,053 |
| Roman Names for Places | 0 | - | 4.62 | 58,490 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,801 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,589 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,531 |
| Most Common First Names in Spain | 0 | - | 4.27 | 46,459 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,501 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,129 |
| Switzerland A-Z | 0 | - | 4.45 | 25,700 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,805 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,479 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,483 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,901 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,831 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,852 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,066 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 109,089 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 276,074 |
| Word Chain - Africa | 0 | - | 4.47 | 31,663 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,447 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| Word Chain - Russia | 0 | - | 4.33 | 15,776 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,795 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,282 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,048 |
| Word Chain - Germany | 0 | - | 4.31 | 22,639 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,185 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,250 |
| Famous Irish People | 0 | - | 4.05 | 46,029 |
| History of Italy | 0 | - | 4.55 | 32,084 |
| Word Chain - Italy | 0 | - | 4.07 | 23,198 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,057 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,745 |
| Famous Nordic People | 0 | - | 4.34 | 20,198 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,812 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,323 |
| Geography of Spain | 0 | - | 4.59 | 22,117 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,369 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,374 |
| Name a Valid English City | 0 | - | 4.19 | 16,765 |
| British Geography A-Z | 0 | - | 4.42 | 19,574 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,696 |
| London A-Z | 0 | - | 4.10 | 40,834 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,288 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,181 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,100 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,500 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,885 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,438 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,107 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,485 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,284 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,100 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,352 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,939 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,447 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,965 |
| Capitals of French Regions | 0 | - | 4.45 | 16,123 |
| Regions of France | 0 | - | 4.70 | 121,415 |
| France Immigration by Country | 0 | - | 4.70 | 76,717 |
| Kings of France Quiz | 0 | - | 4.20 | 32,845 |
| Famous Germans | 0 | - | 4.50 | 55,569 |
| Capitals of German States | 0 | - | 4.74 | 29,005 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,418 |
| Germany True or False? | 0 | - | 4.61 | 48,919 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,195 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,531 |
| Ancient Greek Words | 0 | - | 4.93 | 112,039 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,906 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,213 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,323 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,541 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| British to American Food Translation | 0 | - | 3.38 | 51,993 |
| Robin Hood Quiz | 0 | - | 4.00 | 8,469 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,510 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,739 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,331 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,188 |
| Famous Scottish People | 0 | - | 4.22 | 18,418 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,579 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,637 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,308 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,930 |
| Famous People from Africa | 0 | - | 4.45 | 10,972 |
