| European Countries by First 2 Letters | 0 | - | 4.95 | 532,287 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,447 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,678 |
| Official European Union Languages | 0 | - | 4.97 | 239,679 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,578 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,651 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,285 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,040 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,495 |
| Celtic Nations | 0 | - | 4.61 | 47,083 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,979 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,550 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,505 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,673 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,413 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,206 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,664 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,717 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,733 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,475 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,913 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,337 |
| States of Germany | 0 | - | 4.95 | 154,330 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,650 |
| Regions of Italy | 0 | - | 4.92 | 76,967 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,763 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,236 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,708 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,196 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,730 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,834 |
| Champions League Winners | 0 | - | 4.92 | 1,015,312 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,737 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,718 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,270 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 120,715 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,634 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,781 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,768 |
| Slavic Languages | 0 | - | 4.68 | 54,671 |
| Departments of France | 0 | - | 4.93 | 55,064 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,727 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,727 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,612 |
| England or Wales? | 0 | - | 4.94 | 45,943 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,976 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,898 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,062 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,560 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,260 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,780 |
| History of Russia Quiz | 0 | - | 4.47 | 31,999 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,863 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,543 |
| Name that Greek Letter | 0 | - | 4.93 | 324,882 |
| History of Italy | 0 | - | 4.55 | 32,138 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,310 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,810 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,413 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,065 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,047 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,683 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,513 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,711 |
| Capitals of French Regions | 0 | - | 4.45 | 16,172 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,664 |
| Capitals of German States | 0 | - | 4.74 | 29,064 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,529 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,524 |
| The Trojan War | 0 | - | 4.83 | 39,966 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,868 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,561 |
| Roman Emperors | 0 | - | 4.95 | 121,097 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,561 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,306 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,842 |
| Australian Capitals | 0 | - | 4.92 | 62,825 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,913 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,191 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,500 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,168 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,807 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,210 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,921 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,435 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,648 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,371 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,497 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,158 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,437 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,407 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,266 |
| Regions of France | 0 | - | 4.70 | 121,980 |
| France Immigration by Country | 0 | - | 4.70 | 76,902 |
| Famous Germans | 0 | - | 4.50 | 55,765 |
| German Groups of Things | 0 | - | 4.47 | 38,622 |
| Germany True or False? | 0 | - | 4.61 | 49,003 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,431 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,523 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,405 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,320 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,713 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,398 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,761 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,803 |
| Imagine Lyrics | 0 | - | 4.53 | 43,528 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,106 |
| Asia Map Quiz | 0 | - | 4.99 | 924,499 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,830 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,407 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,802 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,886 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,625 |
| European Physical Geography | 0 | - | 4.26 | 33,588 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,993 |
| Country Codes of Europe | 0 | - | 3.43 | 13,805 |
| The Only European Country ... | 0 | - | 4.91 | 218,796 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,409 |
| Geography of Russia | 0 | - | 4.57 | 21,594 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,111 |
| History of Austria | 0 | - | 4.70 | 17,968 |
| Presidents of France | 0 | - | 4.25 | 24,325 |
| Geography of the French Empire | 0 | - | 4.45 | 27,209 |
| The French Revolution | 0 | - | 4.47 | 24,136 |
| France Multiple Choice | 0 | - | 4.39 | 40,834 |
| History of France | 0 | - | 4.61 | 57,568 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,556 |
| Ancient Greek Words | 0 | - | 4.93 | 112,393 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,487 |
| The Vikings! | 0 | - | 4.46 | 28,400 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,363 |
| The Portuguese Empire | 0 | - | 4.58 | 12,100 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,112 |
| American to British Word Translation | 0 | - | 4.14 | 139,649 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,046 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,338 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,799 |
| Beatles Lyrics First Names | 0 | - | 4.36 | 40,168 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 41,016 |
| Elton John Quiz | 0 | - | 4.49 | 18,520 |
| Champions League Top 4 | 0 | - | 4.78 | 138,838 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,870 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,780 |
| African East Coast | 0 | - | 4.96 | 96,697 |
| Western Africa Map Quiz | 0 | - | 4.98 | 74,554 |
| Countries by National Anthem | 0 | - | 4.93 | 71,398 |
| Australia Map Quiz | 0 | - | 4.95 | 346,048 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,429 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,083 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,871 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,186 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,972 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,686 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,369 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,994 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,409 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,456 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,870 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,748 |
| European Geography A-Z | 0 | - | 4.29 | 49,471 |
| European Geographic Groups of Four | 0 | - | 4.56 | 20,064 |
| Austria... or Australia? | 0 | - | 4.68 | 104,745 |
| Famous French People | 0 | - | 4.07 | 36,073 |
| Word Chain - France | 0 | - | 4.38 | 42,925 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,213 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,034 |
| Italian Foods | 0 | - | 4.30 | 73,228 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,618 |
| The Mafia Quiz | 0 | - | 4.46 | 23,432 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,574 |
| History of The Netherlands | 0 | - | 4.46 | 17,545 |
| Canary Islands | 0 | - | 4.62 | 17,522 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,031 |
| British Spellings | 0 | - | 4.06 | 99,590 |
| British Groups of Things | 0 | - | 4.26 | 82,997 |
| British Acronyms | 0 | - | 4.40 | 45,927 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,099 |
| British Monopoly Board | 0 | - | 4.52 | 41,256 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,094 |
| Geography of Scotland | 0 | - | 4.63 | 21,729 |
| Beatles Songs by Synopsis | 0 | - | 4.31 | 33,191 |
| Viva la Vida Lyrics | 0 | - | 4.38 | 50,122 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,967 |
| Countries of Africa | 0 | - | 5.00 | 2,557,667 |
| Australian States and Territories | 0 | - | 4.96 | 142,792 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,481 |
| Australia True or False | 0 | - | 4.87 | 57,125 |
| Flags of North and South America | 0 | - | 4.99 | 376,614 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,931 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,743 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,573 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,061 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,742 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,030,597 |
| North America Map Quiz | 0 | - | 4.98 | 251,811 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,956 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,878 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,321 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,538 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,150 |
