| Europe Geography Decoder | 0 | - | 4.88 | 64,309 |
| Add A Letter - Make a European City | 0 | - | 4.86 | 21,274 |
| Most Common Last Names in Sweden | 0 | - | 4.43 | 14,238 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 491,974 |
| Category Elimination - European Geography #3 | 0 | - | 4.87 | 67,819 |
| German Groups of Things | 0 | - | 4.43 | 36,382 |
| England or Wales? | 0 | - | 4.93 | 41,031 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 204,988 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 251,023 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 146,044 |
| Countries Surrounding Rome | 0 | - | 4.96 | 47,004 |
| Count to 10 in Europe: Pro | 0 | - | 4.81 | 61,956 |
| Official European Union Languages | 0 | - | 4.98 | 203,961 |
| European Countries in their Native Language | 0 | - | 4.99 | 146,080 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 392,683 |
| Greenland Country Quiz | 0 | - | 4.82 | 32,931 |
| Word Scramble - European Countries | 0 | - | 4.76 | 128,573 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 87,387 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 72,451 |
| Roman Emperors | 0 | - | 4.96 | 97,927 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 38,364 |
| British Groups of Things | 0 | - | 4.26 | 80,762 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,323 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,559 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 389,287 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 80,808 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 288,969 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 122,642 |
| Germany Multiple Choice | 0 | - | 4.81 | 50,094 |
| Top Five Countries By Category #2 | 0 | - | 4.92 | 159,556 |
| Top Five Countries By Category #3 | 0 | - | 4.86 | 144,920 |
| Countries Once Held by Sweden | 0 | - | 4.17 | 33,684 |
| Sweden Country Quiz | 0 | - | 4.36 | 63,221 |
| UK Cities Map Quiz | 0 | - | 4.95 | 438,091 |
| Champions League Winners | 0 | - | 4.91 | 893,284 |
| Celtic Nations | 0 | - | 4.76 | 45,047 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 67,678 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 68,148 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,822 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 58,387 |
| Four Letter European Geography #2 | 0 | - | 4.61 | 4,984 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 32,719 |
| Nordic Cities Map Quiz | 0 | - | 4.75 | 85,945 |
| Sweden Immigration by Country | 0 | - | 4.66 | 43,042 |
| Regions of Spain Quiz | 0 | - | 4.87 | 97,403 |
| Cantons of Switzerland | 0 | - | 4.97 | 41,504 |
| United Kingdom A-Z | 0 | - | 4.53 | 81,713 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 281,799 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 46,543 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 102,302 |
| Catholic Countries in Europe | 0 | - | 4.86 | 85,328 |
| Federal Subjects of Russia | 0 | - | 4.95 | 116,950 |
| France Immigration by Country | 0 | - | 4.81 | 70,280 |
| Countries Bordering France | 0 | - | 4.87 | 361,552 |
| States of Germany | 0 | - | 4.94 | 127,116 |
| Germany Immigration by Country | 0 | - | 4.91 | 71,356 |
| Countries Bordering Germany | 0 | - | 4.99 | 344,397 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 27,139 |
| Counties of Ireland | 0 | - | 4.90 | 163,533 |
| Regions of Italy | 0 | - | 4.89 | 62,080 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 165,621 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 79,635 |
| Top Five Countries By Fruit Production | 0 | - | 4.91 | 44,516 |
| Famous Nordic People | 0 | - | 4.41 | 10,736 |
| Denmark Country Quiz | 0 | - | 4.79 | 70,540 |
| Finland Country Quiz | 0 | - | 4.48 | 53,821 |
| Iceland Country Quiz | 0 | - | 4.66 | 39,453 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 87,595 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 171,587 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 95,422 |
| Fictional Characters from Great Britain | 0 | - | 4.11 | 31,346 |
| UK Immigration by Country | 0 | - | 4.94 | 127,419 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,894 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 121,653 |
| Robin Hood Quiz | 0 | - | 4.03 | 8,093 |
| British Monopoly Board | 0 | - | 4.51 | 39,496 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 102,398 |
| English Monarchs Quiz | 0 | - | 4.91 | 454,561 |
| All Champions League Teams Ever | 0 | - | 4.90 | 108,088 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,917 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 84,150 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 81,329 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.93 | 149,502 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,519 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.72 | 54,446 |
| Four Letter European Geography #1 | 0 | - | 4.37 | 5,356 |
| Austria... or Australia? | 0 | - | 4.79 | 99,059 |
| France Cities Map Quiz | 0 | - | 4.96 | 150,431 |
| Word Chain - France | 0 | - | 4.37 | 40,452 |
| Germany Country Quiz | 0 | - | 4.82 | 142,872 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 107,876 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,893 |
| Italy Country Quiz | 0 | - | 4.81 | 111,229 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 135,950 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 139,871 |
| Countries Italy Declared War On | 0 | - | 4.76 | 40,455 |
| Most-Visited Countries by Swedes | 0 | - | 4.66 | 50,893 |
| Countries Closest to Iceland | 0 | - | 4.87 | 64,157 |
| Spanish Immigration by Country | 0 | - | 4.63 | 52,537 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,894 |
| Countries Closest to Spain | 0 | - | 4.95 | 208,645 |
| Countries that Beat Spain | 0 | - | 4.95 | 56,622 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 66,298 |
| Countries that Visit the UK the Most | 0 | - | 4.85 | 64,233 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 107,811 |
| Wonderwall Lyrics | 0 | - | 4.23 | 69,420 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 224,294 |
| World Capitals Closest to London | 0 | - | 4.91 | 94,516 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 87,614 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 82,131 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.42 | 252,017 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 295,621 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,894 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 90,471 |
| Name a Major European City A-Z | 0 | - | 4.34 | 43,788 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 57,649 |
| Slavic Languages | 0 | - | 4.64 | 49,446 |
| Andorra Country Quiz | 0 | - | 4.87 | 28,429 |
| Countries Bordering Austria | 0 | - | 4.97 | 111,169 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 90,683 |
| Famous Dutch and Belgian People | 0 | - | 4.51 | 16,981 |
| Countries that Visit France the Most | 0 | - | 4.81 | 40,561 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 66,998 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 53,618 |
| The Trojan War | 0 | - | 4.80 | 36,341 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 592,131 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.56 | 57,049 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 39,102 |
| Iceland... or Ireland? | 0 | - | 4.72 | 54,489 |
| Countries Bordering Italy | 0 | - | 4.95 | 95,640 |
| Countries Closest to Italy | 0 | - | 4.97 | 181,861 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,734 |
| Geography of the Roman Empire | 0 | - | 4.57 | 48,959 |
| Roman Names for Places | 0 | - | 4.66 | 42,297 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,719 |
| Norway Country Quiz | 0 | - | 4.40 | 62,880 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,206 |
| Geography of Spain | 0 | - | 4.52 | 20,579 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 28,211 |
| Members of the British Royal Family | 0 | - | 4.11 | 109,880 |
| Name a Valid English City | 0 | - | 4.16 | 15,496 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 20,907 |
| London A-Z | 0 | - | 4.19 | 38,825 |
| U.S. Groups of Four Quiz | 0 | - | 4.37 | 23,578 |
| U.S. Groups of Three Quiz | 0 | - | 4.05 | 19,702 |
| Top European Languages on a Map | 0 | - | 4.78 | 120,098 |
| Word Chain - Russia | 0 | - | 4.36 | 14,949 |
| Russia Multiple Choice | 0 | - | 4.56 | 38,515 |
| The Reign of Napoleon | 0 | - | 4.53 | 36,428 |
| Word Chain - Germany | 0 | - | 4.30 | 21,331 |
| Ancient Greece A-Z | 0 | - | 4.63 | 21,090 |
| Olympian Gods Quiz | 0 | - | 4.96 | 461,190 |
| Geography of Ancient Greece | 0 | - | 4.76 | 30,278 |
| Name that Greek Letter | 0 | - | 4.94 | 298,598 |
| Famous Irish People | 0 | - | 4.01 | 44,616 |
| Word Chain - Italy | 0 | - | 4.09 | 22,192 |
| Italy Multiple Choice | 0 | - | 4.74 | 95,545 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 49,742 |
| Provinces of the Netherlands | 0 | - | 4.65 | 34,195 |
| Switzerland A-Z | 0 | - | 4.40 | 18,647 |
| British to American Food Translation. | 0 | - | 3.49 | 50,651 |
| British Acronyms | 0 | - | 4.41 | 43,761 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 74,728 |
| Beatles Songs Quiz | 0 | - | 4.95 | 212,788 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 276,872 |
| Famous Scottish People | 0 | - | 4.19 | 17,578 |
| Asia Geography Quiz #1 | 0 | - | 4.79 | 51,313 |
| Asia Geography Quiz #2 | 0 | - | 4.63 | 45,887 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 258,586 |
| Famous People from Africa | 0 | - | 4.44 | 10,342 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 248,368 |
| Word Chain - Africa | 0 | - | 4.44 | 30,004 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 23,477 |
| Name a Valid Answer - United States #1 | 0 | - | 4.65 | 87,405 |
| European Geography By Letter - A | 0 | - | 4.63 | 125,780 |
| European Geography By Letter - B #1 | 0 | - | 4.75 | 104,826 |
| European Geography By Letter - C | 0 | - | 4.45 | 106,163 |
| European Geography By Letter - D | 0 | - | 4.51 | 100,604 |
| European Geography By Letter - L | 0 | - | 4.51 | 106,281 |
| European Geography By Letter - M | 0 | - | 4.55 | 115,547 |
| European Geography By Letter - P | 0 | - | 4.79 | 90,659 |
| European Geography By Letter - N | 0 | - | 4.42 | 94,403 |
| European Geography By Letter - V | 0 | - | 4.45 | 87,421 |
| Europe Map Quiz | 0 | - | 5.00 | 4,352,774 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 94,720 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 63,178 |
| Famous Swiss and Austrian People | 0 | - | 4.38 | 13,742 |
| Regions of France | 0 | - | 4.65 | 103,059 |
| France A-Z | 0 | - | 4.16 | 25,965 |
| Capitals of German States | 0 | - | 4.70 | 27,428 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 20,610 |
| Germany True or False? | 0 | - | 4.60 | 45,111 |
| Largest Islands of Greece | 0 | - | 4.58 | 41,050 |
| The Life of Alexander the Great | 0 | - | 4.51 | 17,606 |
| Ancient Greek Words | 0 | - | 4.91 | 99,579 |
| Capitals of Italian Regions | 0 | - | 4.53 | 26,395 |
| Seven Hills of Rome | 0 | - | 4.68 | 8,625 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.80 | 48,710 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 404,634 |
| Monaco Country Quiz | 0 | - | 4.45 | 38,193 |
