| European Countries by First 2 Letters | 0 | - | 4.95 | 530,083 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,122 |
| States of Germany | 0 | - | 4.95 | 152,905 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,174 |
| Regions of Italy | 0 | - | 4.92 | 76,093 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,310 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,194 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,313 |
| Departments of France | 0 | - | 4.93 | 54,292 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,572 |
| England or Wales? | 0 | - | 4.94 | 45,750 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,241 |
| Official European Union Languages | 0 | - | 4.97 | 238,721 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,994 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,631 |
| Slavic Languages | 0 | - | 4.68 | 54,416 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,046 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,869 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,761 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,462 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,940 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,440 |
| Regions of France | 0 | - | 4.72 | 121,023 |
| France Immigration by Country | 0 | - | 4.70 | 76,605 |
| Famous Germans | 0 | - | 4.50 | 55,379 |
| German Groups of Things | 0 | - | 4.46 | 38,496 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,401 |
| Germany True or False? | 0 | - | 4.61 | 48,846 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,128 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,081 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,594 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,446 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,294 |
| Counties of England | 0 | - | 4.97 | 797,963 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,350 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,663 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,198 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,253 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,765 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,144 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,668 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,644 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,981 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,881 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,073 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,909 |
| Champions League Winners | 0 | - | 4.91 | 1,008,454 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,534 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,989 |
| History of Austria | 0 | - | 4.70 | 17,882 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,175 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,096 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,725 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,620 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,136 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,365 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,739 |
| Austria... or Australia? | 0 | - | 4.68 | 104,444 |
| Famous French People | 0 | - | 4.07 | 35,692 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,952 |
| Word Chain - France | 0 | - | 4.38 | 42,805 |
| Germany Country Quiz | 0 | - | 4.83 | 158,036 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,495 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,039 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,936 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,530 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,183 |
| Italian Foods | 0 | - | 4.30 | 72,855 |
| The Mafia Quiz | 0 | - | 4.46 | 23,348 |
| History of The Netherlands | 0 | - | 4.46 | 17,457 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,023 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,814 |
| Canary Islands | 0 | - | 4.62 | 17,486 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,142 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,776 |
| British Spellings | 0 | - | 4.06 | 99,478 |
| British Groups of Things | 0 | - | 4.25 | 82,892 |
| British Acronyms | 0 | - | 4.40 | 45,821 |
| UK Immigration by Country | 0 | - | 4.94 | 141,045 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,047 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,019 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,812 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,881 |
| Geography of Scotland | 0 | - | 4.63 | 21,637 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,726 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,625 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,784 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,324 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,552 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,818 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,630 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,075 |
| France A-Z | 0 | - | 4.16 | 38,230 |
| French History Multiple Choice | 0 | - | 4.55 | 33,094 |
| History of Germany | 0 | - | 4.39 | 52,870 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,224 |
| Name that Greek Letter | 0 | - | 4.93 | 324,014 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,638 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,211 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,498 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,631 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,385 |
| Switzerland A-Z | 0 | - | 4.45 | 25,665 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,725 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,030 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,816 |
| Malta Country Quiz | 0 | - | 4.81 | 31,090 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,435 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,218 |
| History of Russia Quiz | 0 | - | 4.47 | 31,941 |
| Movies Set in France | 0 | - | 4.26 | 13,124 |
| French Inventions | 0 | - | 4.08 | 13,900 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,284 |
| History of Paris | 0 | - | 4.24 | 13,655 |
| Word Chain - Germany | 0 | - | 4.31 | 22,600 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,113 |
| The Trojan War | 0 | - | 4.83 | 39,770 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,033 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,264 |
| History of Italy | 0 | - | 4.55 | 32,027 |
| Word Chain - Italy | 0 | - | 4.07 | 23,172 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,865 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,118 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,600 |
| Roman Emperors | 0 | - | 4.95 | 120,239 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,698 |
| Famous Nordic People | 0 | - | 4.34 | 20,149 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,618 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,273 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,349 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,538 |
| People on Money - England | 0 | - | 4.29 | 16,620 |
| Name a Valid English City | 0 | - | 4.19 | 16,738 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,425 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,478 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,880 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,165 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,796 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,649 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,858 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,666 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,963 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,811 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,104 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,562 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,331 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,319 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,982 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,269 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,272 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,702 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,510 |
| Capitals of French Regions | 0 | - | 4.45 | 16,094 |
| Kings of France Quiz | 0 | - | 4.20 | 32,779 |
| Capitals of German States | 0 | - | 4.74 | 28,975 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,366 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,427 |
| Ancient Greek Words | 0 | - | 4.93 | 111,773 |
| British to American Food Translation | 0 | - | 3.38 | 51,972 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,468 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,604 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,906 |
| Famous Scottish People | 0 | - | 4.22 | 18,405 |
| Africa Map Quiz | 0 | - | 5.00 | 2,120,027 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,242 |
| Australian Capitals | 0 | - | 4.92 | 62,735 |
| European Physical Geography | 0 | - | 4.26 | 33,525 |
| Geography of Russia | 0 | - | 4.57 | 21,548 |
| Austria Country Quiz | 0 | - | 4.57 | 59,798 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,874 |
| France Country Quiz | 0 | - | 4.70 | 135,082 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,201 |
| Geography of the French Empire | 0 | - | 4.45 | 27,137 |
| The French Revolution | 0 | - | 4.47 | 24,032 |
| France Multiple Choice | 0 | - | 4.39 | 40,753 |
| Tour de France Winners | 0 | - | 4.27 | 15,395 |
| History of France | 0 | - | 4.59 | 57,160 |
| Greece Country Quiz | 0 | - | 4.74 | 66,337 |
| Italy Country Quiz | 0 | - | 4.77 | 123,514 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,579 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,215 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,796 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,541 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,584 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,502 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,967 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
| Spain Country Quiz | 0 | - | 4.44 | 128,671 |
| Switzerland Country Quiz | 0 | - | 4.51 | 63,413 |
| American to British Word Translation | 0 | - | 4.14 | 139,206 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,927 |
| Largest Islands in the British Isles With a Map | 0 | - | 4.52 | 38,756 |
| Biggest British Empire Countries | 0 | - | 4.74 | 100,111 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,387 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,350 |
| Name the James Bond Movies | 0 | - | 4.56 | 158,646 |
