| States of Germany | 0 | - | 4.95 | 152,947 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,193 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,320 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,165 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,412 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,138 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,192 |
| Regions of Italy | 0 | - | 4.92 | 76,112 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,334 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,211 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,634 |
| Departments of France | 0 | - | 4.93 | 54,336 |
| Famous Germans | 0 | - | 4.50 | 55,431 |
| German Groups of Things | 0 | - | 4.46 | 38,499 |
| Germany True or False? | 0 | - | 4.61 | 48,854 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,580 |
| England or Wales? | 0 | - | 4.94 | 45,756 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,256 |
| Official European Union Languages | 0 | - | 4.97 | 238,759 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,028 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,692 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,057 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,131 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,785 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,877 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,411 |
| Celtic Nations | 0 | - | 4.69 | 46,973 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,478 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,974 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,517 |
| Regions of France | 0 | - | 4.72 | 121,045 |
| France Immigration by Country | 0 | - | 4.70 | 76,620 |
| Capitals of German States | 0 | - | 4.74 | 28,977 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,372 |
| History of Germany | 0 | - | 4.39 | 52,873 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,099 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,646 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,454 |
| Switzerland A-Z | 0 | - | 4.45 | 25,667 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,308 |
| Counties of England | 0 | - | 4.97 | 798,131 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,360 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,667 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,393 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,277 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,798 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,179 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,739 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,681 |
| States of Germany Map Quiz | 0 | - | 4.91 | 133,034 |
| Word Chain - Germany | 0 | - | 4.31 | 22,602 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,930 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,086 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,991 |
| Champions League Winners | 0 | - | 4.91 | 1,008,739 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,539 |
| Austria Country Quiz | 0 | - | 4.57 | 59,805 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,183 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,110 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,729 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,669 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,182 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,426 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,740 |
| Austria... or Australia? | 0 | - | 4.68 | 104,450 |
| Famous French People | 0 | - | 4.07 | 35,738 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,986 |
| Word Chain - France | 0 | - | 4.38 | 42,811 |
| Germany Country Quiz | 0 | - | 4.83 | 158,073 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,523 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,048 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,939 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,555 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,208 |
| Italian Foods | 0 | - | 4.30 | 72,872 |
| The Mafia Quiz | 0 | - | 4.46 | 23,355 |
| History of The Netherlands | 0 | - | 4.46 | 17,463 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,040 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,848 |
| Canary Islands | 0 | - | 4.62 | 17,488 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,164 |
| British Spellings | 0 | - | 4.06 | 99,485 |
| British Groups of Things | 0 | - | 4.25 | 82,893 |
| British Acronyms | 0 | - | 4.40 | 45,825 |
| UK Immigration by Country | 0 | - | 4.94 | 141,062 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,049 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,042 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,850 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,898 |
| Geography of Scotland | 0 | - | 4.63 | 21,643 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,783 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,628 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,668 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,802 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,382 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,559 |
| Slavic Languages | 0 | - | 4.68 | 54,426 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,823 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,504 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,077 |
| France A-Z | 0 | - | 4.16 | 38,237 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,494 |
| Geography of Germany | 0 | - | 4.35 | 17,200 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,345 |
| Name that Greek Letter | 0 | - | 4.93 | 324,049 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,640 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,500 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,636 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,733 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,032 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,823 |
| Malta Country Quiz | 0 | - | 4.81 | 31,096 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,463 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,242 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,762 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,969 |
| Movies Set in France | 0 | - | 4.26 | 13,125 |
| French Inventions | 0 | - | 4.08 | 13,901 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,305 |
| History of Paris | 0 | - | 4.24 | 13,657 |
| The Trojan War | 0 | - | 4.83 | 39,774 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,065 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,311 |
| History of Italy | 0 | - | 4.55 | 32,031 |
| Word Chain - Italy | 0 | - | 4.07 | 23,175 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,886 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,119 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,606 |
| Roman Emperors | 0 | - | 4.95 | 120,259 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,704 |
| Famous Nordic People | 0 | - | 4.34 | 20,153 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,620 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,277 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,351 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,538 |
| People on Money - England | 0 | - | 4.29 | 16,621 |
| Name a Valid English City | 0 | - | 4.19 | 16,738 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,450 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,496 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,926 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,192 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,816 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,662 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,882 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,675 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,969 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,820 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,114 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,578 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,905 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,323 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,986 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,273 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,275 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,711 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,516 |
| Capitals of French Regions | 0 | - | 4.45 | 16,096 |
| Kings of France Quiz | 0 | - | 4.20 | 32,788 |
| German Loan Words | 0 | - | 4.27 | 135,849 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,518 |
| Ancient Greek Words | 0 | - | 4.93 | 111,799 |
| British to American Food Translation | 0 | - | 3.38 | 51,975 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,473 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,673 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,929 |
| Famous Scottish People | 0 | - | 4.22 | 18,408 |
| Africa Map Quiz | 0 | - | 5.00 | 2,120,370 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,324 |
| Australian Capitals | 0 | - | 4.92 | 62,738 |
| European Physical Geography | 0 | - | 4.26 | 33,531 |
| Geography of Russia | 0 | - | 4.57 | 21,550 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,992 |
| History of Austria | 0 | - | 4.70 | 17,888 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,891 |
| France Country Quiz | 0 | - | 4.70 | 135,101 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,208 |
| Geography of the French Empire | 0 | - | 4.45 | 27,143 |
| The French Revolution | 0 | - | 4.47 | 24,037 |
| France Multiple Choice | 0 | - | 4.39 | 40,756 |
| Tour de France Winners | 0 | - | 4.27 | 15,400 |
| History of France | 0 | - | 4.59 | 57,190 |
| Bundesliga Champions | 0 | - | 4.25 | 56,697 |
| All Bundesliga Teams Ever | 0 | - | 4.35 | 45,645 |
| German History A-Z | 0 | - | 4.49 | 24,642 |
| German Inventions | 0 | - | 3.91 | 30,243 |
| Embarrassing Chapters in German History | 0 | - | 3.40 | 12,644 |
| Greece Country Quiz | 0 | - | 4.74 | 66,338 |
| Italy Country Quiz | 0 | - | 4.77 | 123,531 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,643 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,224 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,804 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,544 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,599 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,510 |
| The Vikings! | 0 | - | 4.46 | 28,359 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,982 |
| The Portuguese Empire | 0 | - | 4.58 | 12,078 |
| Spain Country Quiz | 0 | - | 4.44 | 128,686 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,419 |
