| European Countries by First 2 Letters | 0 | - | 4.96 | 454,820 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,931 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,930 |
| States of Germany | 0 | - | 4.94 | 122,185 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,133 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,180 |
| Counties of Ireland | 0 | - | 4.89 | 158,026 |
| Regions of Italy | 0 | - | 4.88 | 59,828 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,444 |
| Official European Union Languages | 0 | - | 4.98 | 199,207 |
| European Countries in their Native Language | 0 | - | 4.99 | 143,137 |
| The Vikings! | 0 | - | 4.44 | 27,043 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 383,455 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,380 |
| Europe Geography Decoder | 0 | - | 4.89 | 62,904 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 38,952 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,280 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 65,014 |
| Germany Multiple Choice | 0 | - | 4.80 | 48,959 |
| Italy Multiple Choice | 0 | - | 4.75 | 93,060 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,751 |
| Counties of England | 0 | - | 4.96 | 685,323 |
| Celtic Nations | 0 | - | 4.76 | 44,553 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 79,225 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 283,702 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 114,263 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,057 |
| Greenland... or Iceland? | 0 | - | 4.49 | 41,602 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 45,929 |
| British Acronyms | 0 | - | 4.42 | 43,226 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 72,939 |
| Regions of France | 0 | - | 4.64 | 99,410 |
| France Immigration by Country | 0 | - | 4.80 | 68,491 |
| German Groups of Things | 0 | - | 4.43 | 35,831 |
| Germany True or False? | 0 | - | 4.64 | 44,206 |
| Largest Islands of Greece | 0 | - | 4.56 | 39,135 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,036 |
| The Portuguese Empire | 0 | - | 4.54 | 11,304 |
| British Words Quiz #2 | 0 | - | 4.04 | 106,677 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,224 |
| Parts of the United Kingdom | 0 | - | 4.88 | 83,125 |
| Counties of England Map Quiz | 0 | - | 4.97 | 285,642 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 265,739 |
| Champions League Winners | 0 | - | 4.91 | 843,053 |
| Count to 10 in Europe: Pro | 0 | - | 4.79 | 60,692 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,004 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,563 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 64,896 |
| Federal Subjects of Russia | 0 | - | 4.95 | 110,897 |
| History of Austria | 0 | - | 4.68 | 16,316 |
| Regions of France Map Quiz | 0 | - | 4.96 | 126,678 |
| Geography of the French Empire | 0 | - | 4.49 | 25,325 |
| The French Revolution | 0 | - | 4.44 | 21,845 |
| History of France Quiz | 0 | - | 4.55 | 39,537 |
| States of Germany Map Quiz | 0 | - | 4.91 | 119,669 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,810 |
| History of Italy | 0 | - | 4.49 | 29,679 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,450 |
| England or Wales? | 0 | - | 4.93 | 39,945 |
| All Champions League Teams Ever | 0 | - | 4.89 | 103,202 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,894 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 244,895 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 141,580 |
| History of The Netherlands | 0 | - | 4.42 | 15,667 |
| Spanish Immigration by Country | 0 | - | 4.59 | 51,627 |
| Canary Islands | 0 | - | 4.60 | 16,522 |
| Switzerland Immigration by Country | 0 | - | 4.76 | 20,232 |
| British Spellings Quiz | 0 | - | 4.04 | 94,483 |
| British Groups of Things | 0 | - | 4.26 | 80,003 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,675 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,251 |
| Word Scramble - European Countries | 0 | - | 4.71 | 113,080 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 84,130 |
| Slavic Languages | 0 | - | 4.58 | 48,495 |
| Word Chain - France | 0 | - | 4.38 | 39,837 |
| Famous Germans | 0 | - | 4.39 | 35,111 |
| Famous Italians | 0 | - | 4.40 | 65,749 |
| Italian Foods | 0 | - | 4.25 | 63,704 |
| History of Spain Quiz | 0 | - | 4.33 | 19,511 |
| Languages of Spain | 0 | - | 4.34 | 21,232 |
| British Words Quiz #1 | 0 | - | 3.78 | 235,836 |
| British Foods | 0 | - | 3.85 | 46,984 |
| British and American Word Differences | 0 | - | 2.67 | 44,337 |
| British Geography Quiz #2 | 0 | - | 4.27 | 26,269 |
| Bridges of London | 0 | - | 4.11 | 9,320 |
| British Sport Trivia | 0 | - | 4.32 | 19,191 |
| Famous Welsh People | 0 | - | 4.12 | 9,247 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,783 |
| France Multiple Choice | 0 | - | 4.36 | 25,185 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 21,945 |
| Geography of Germany | 0 | - | 4.37 | 15,495 |
| History of Germany Quiz | 0 | - | 4.35 | 40,026 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 580,994 |
| Iceland... or Ireland? | 0 | - | 4.72 | 53,858 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,400 |
| Roman Emperors | 0 | - | 4.95 | 95,100 |
| Famous Nordic People | 0 | - | 4.40 | 10,659 |
| Famous Spaniards Quiz | 0 | - | 4.19 | 10,915 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,248 |
| Word Chain - United Kingdom | 0 | - | 4.04 | 27,900 |
| The British Royal Family - Modern Times | 0 | - | 4.11 | 20,575 |
| People on Money - England | 0 | - | 4.33 | 15,918 |
| Name a Valid English City | 0 | - | 4.16 | 15,267 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 253,638 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 243,519 |
| Top European Languages on a Map | 0 | - | 4.76 | 117,027 |
| Russia Multiple Choice | 0 | - | 4.56 | 37,901 |
| French Geography Quiz #1 | 0 | - | 4.86 | 30,855 |
| Famous French People | 0 | - | 4.15 | 24,083 |
| Movies Set in France | 0 | - | 4.23 | 12,478 |
| French Inventions | 0 | - | 4.08 | 13,319 |
| History of Paris | 0 | - | 4.20 | 12,636 |
| Word Chain - Germany | 0 | - | 4.29 | 21,026 |
| The Trojan War | 0 | - | 4.81 | 35,747 |
| Word Chain - Italy | 0 | - | 4.08 | 21,949 |
| Beatles Songs Quiz | 0 | - | 4.95 | 204,829 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 272,556 |
| Australian Capitals | 0 | - | 4.90 | 52,969 |
| European Geography By Letter - A | 0 | - | 4.55 | 123,833 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,173 |
| European Geography By Letter - C | 0 | - | 4.44 | 104,570 |
| European Geography By Letter - D | 0 | - | 4.52 | 99,177 |
| European Geography By Letter - L | 0 | - | 4.50 | 104,585 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,074 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,229 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,180 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,021 |
| Europe Map Quiz | 0 | - | 5.00 | 4,266,925 |
| Europe Geography Quiz #1 | 0 | - | 4.52 | 66,847 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,323 |
| Europe Geography Quiz #4 | 0 | - | 4.56 | 66,007 |
| Europe Geography Quiz #5 | 0 | - | 4.53 | 57,692 |
| European Geography By Letter - S #1 | 0 | - | 4.57 | 93,643 |
| European Geography A-Z | 0 | - | 4.43 | 45,153 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 61,687 |
| Capitals of German States | 0 | - | 4.67 | 27,019 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 13,362 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,766 |
| Name that Greek Letter | 0 | - | 4.94 | 294,695 |
| Ancient Greek Words | 0 | - | 4.90 | 96,516 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,031 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 397,251 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,230 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,574 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,553 |
| Countries the UK Declared War On | 0 | - | 4.58 | 111,711 |
| Geography of the British Empire | 0 | - | 4.50 | 36,738 |
| Champions League Top 4 | 0 | - | 4.76 | 103,125 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,338,626 |
| Asia Map Quiz | 0 | - | 4.99 | 777,893 |
| Africa Map Quiz | 0 | - | 5.00 | 1,929,346 |
| Oceania Map Quiz | 0 | - | 4.97 | 564,030 |
| European Physical Geography | 0 | - | 4.19 | 31,849 |
| History of Russia Quiz | 0 | - | 4.48 | 29,769 |
| Geography of Russia | 0 | - | 4.54 | 20,107 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,538 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,764 |
| British Monopoly Board | 0 | - | 4.50 | 39,092 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 79,028 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,275,659 |
| Countries of Africa | 0 | - | 5.00 | 2,148,888 |
| African East Coast | 0 | - | 4.97 | 83,570 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,382 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 39,808 |
| Australia Map Quiz | 0 | - | 4.95 | 317,863 |
| United States Map Quiz | 0 | - | 4.98 | 3,887,206 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 194,584 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,450 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,828 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 334,455 |
| European Geography By Letter - E | 0 | - | 4.19 | 104,946 |
| European Geography By Letter - F | 0 | - | 4.15 | 84,973 |
| European Geography By Letter - H | 0 | - | 4.29 | 88,317 |
| European Geography By Letter - G | 0 | - | 4.24 | 94,781 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,492 |
| European Geography By Letter - K | 0 | - | 4.16 | 64,271 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,533 |
| European Geography By Letter - R | 0 | - | 4.39 | 87,269 |
| European Geography by Letter - W | 0 | - | 4.21 | 78,073 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,691 |
| Europe Geography Quiz #3 | 0 | - | 4.31 | 59,748 |
| European Geography By Letter - S #2 | 0 | - | 4.16 | 46,543 |
| 10 Easternmost Countries in Europe | 0 | - | 4.84 | 91,231 |
| Country Codes of Europe | 0 | - | 3.34 | 12,700 |
| The Only European Country ... | 0 | - | 4.94 | 176,532 |
| Word Chain - Russia | 0 | - | 4.41 | 14,770 |
| Austria... or Australia? | 0 | - | 4.79 | 97,591 |
| Capitals of French Regions | 0 | - | 4.40 | 14,698 |
| Presidents of France | 0 | - | 4.22 | 19,965 |
| French Foods | 0 | - | 3.94 | 26,330 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,204 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,714 |
| Most Popular Types of Pasta | 0 | - | 3.91 | 29,692 |
| Italian Inventions | 0 | - | 3.87 | 17,931 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,256 |
| Geography of the Roman Empire | 0 | - | 4.58 | 48,336 |
| Roman Names for Places | 0 | - | 4.66 | 41,229 |
| Byzantine History | 0 | - | 4.87 | 26,138 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,516 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 49,942 |
