| Count to 10 in Europe: Pro | 0 | - | 4.84 | 64,392 |
| Official European Union Languages | 0 | - | 4.98 | 225,655 |
| European Countries in their Native Language | 0 | - | 4.99 | 149,997 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 505,093 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 188,710 |
| States of Germany | 0 | - | 4.94 | 135,324 |
| Germany Immigration by Country | 0 | - | 4.86 | 74,554 |
| Counties of Ireland | 0 | - | 4.88 | 172,961 |
| Regions of Italy | 0 | - | 4.90 | 66,320 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 34,413 |
| Regions of Spain Quiz | 0 | - | 4.89 | 102,945 |
| Cantons of Switzerland | 0 | - | 4.97 | 44,382 |
| Departments of France | 0 | - | 4.88 | 42,578 |
| Countries Surrounding Rome | 0 | - | 4.96 | 47,897 |
| England or Wales? | 0 | - | 4.94 | 42,618 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 405,484 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,472 |
| Slavic Languages | 0 | - | 4.68 | 51,207 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,290 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 40,254 |
| Famous Nordic People | 0 | - | 4.41 | 10,901 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 39,772 |
| Top European Languages on a Map | 0 | - | 4.77 | 124,679 |
| Top African Languages on a Map | 0 | - | 4.92 | 62,485 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 110,382 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 50,530 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 22,031 |
| Celtic Nations | 0 | - | 4.75 | 45,768 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 83,278 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 296,402 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 140,548 |
| Regions of France | 0 | - | 4.70 | 109,005 |
| France Immigration by Country | 0 | - | 4.78 | 72,593 |
| German Groups of Things | 0 | - | 4.45 | 37,176 |
| Germany Multiple Choice | 0 | - | 4.83 | 51,529 |
| Germany True or False? | 0 | - | 4.62 | 46,408 |
| Largest Islands of Greece | 0 | - | 4.58 | 43,652 |
| Provinces of the Netherlands | 0 | - | 4.71 | 36,522 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 46,908 |
| Counties of England | 0 | - | 4.97 | 738,291 |
| Foods in a Full English Breakfast | 0 | - | 4.42 | 77,435 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 65,428 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 53,432 |
| Catholic Countries in Europe | 0 | - | 4.83 | 88,739 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 72,362 |
| Federal Subjects of Russia | 0 | - | 4.93 | 126,863 |
| Regions of France Map Quiz | 0 | - | 4.96 | 134,242 |
| States of Germany Map Quiz | 0 | - | 4.91 | 125,683 |
| UK Cities Map Quiz | 0 | - | 4.95 | 447,092 |
| Countries and Territories of the United Kingdom | 0 | - | 4.88 | 88,181 |
| Counties of England Map Quiz | 0 | - | 4.97 | 295,971 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 303,098 |
| Champions League Winners | 0 | - | 4.92 | 934,800 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 55,910 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 28,876 |
| The Vikings! | 0 | - | 4.45 | 27,680 |
| Languages of the United Kingdom | 0 | - | 4.12 | 39,510 |
| United Kingdom A-Z | 0 | - | 4.53 | 83,820 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,288 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 214,311 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 260,436 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 153,227 |
| France Cities Map Quiz | 0 | - | 4.95 | 155,914 |
| Word Chain - France | 0 | - | 4.37 | 41,325 |
| Famous Germans | 0 | - | 4.39 | 35,772 |
| Germany Country Quiz | 0 | - | 4.82 | 148,086 |
| Germany Cities Map Quiz | 0 | - | 4.83 | 111,714 |
| Ancient Greek Trivia | 0 | - | 4.55 | 64,968 |
| Famous Italians | 0 | - | 4.40 | 69,829 |
| Italy Country Quiz | 0 | - | 4.83 | 115,624 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 140,767 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 144,137 |
| Italian Foods | 0 | - | 4.29 | 68,135 |
| The Mafia Quiz | 0 | - | 4.46 | 22,399 |
| History of The Netherlands | 0 | - | 4.44 | 16,427 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 90,736 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 176,635 |
| Canary Islands | 0 | - | 4.61 | 16,941 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 100,207 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 25,453 |
| British Spellings Quiz | 0 | - | 4.07 | 96,983 |
| British Groups of Things | 0 | - | 4.25 | 81,745 |
| British Acronyms | 0 | - | 4.39 | 44,505 |
| UK Immigration by Country | 0 | - | 4.94 | 132,056 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,282 |
| United Kingdom Country Quiz | 0 | - | 4.94 | 128,067 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 108,034 |
| Geography of Scotland | 0 | - | 4.62 | 20,482 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 118,046 |
| Pre-Euro Currencies | 0 | - | 4.43 | 50,930 |
| Word Scramble - European Countries | 0 | - | 4.70 | 134,179 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 100,393 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 60,404 |
| French Geography Quiz #1 | 0 | - | 4.87 | 32,752 |
| Andorra Country Quiz | 0 | - | 4.88 | 29,578 |
| Famous Dutch and Belgian People | 0 | - | 4.52 | 17,305 |
| France A-Z | 0 | - | 4.18 | 36,950 |
| History of Germany | 0 | - | 4.38 | 51,161 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 609,515 |
| Iceland... or Ireland? | 0 | - | 4.74 | 55,313 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,377 |
| Spanish Immigration by Country | 0 | - | 4.57 | 53,725 |
| Most Common First Names in Spain | 0 | - | 4.26 | 44,539 |
| Languages of Spain | 0 | - | 4.38 | 22,221 |
| Switzerland A-Z | 0 | - | 4.44 | 19,188 |
| Most Common Surnames in the UK | 0 | - | 4.20 | 67,665 |
| Wonderwall Lyrics | 0 | - | 4.24 | 70,892 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 255,895 |
| Most-Spoken Languages of the United States | 0 | - | 4.44 | 179,035 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,330 |
| Famous French People | 0 | - | 4.12 | 24,505 |
| Movies Set in France | 0 | - | 4.24 | 12,794 |
| French Inventions | 0 | - | 4.08 | 13,565 |
| France Multiple Choice | 0 | - | 4.41 | 39,713 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 42,835 |
| History of Paris | 0 | - | 4.23 | 13,237 |
| Word Chain - Germany | 0 | - | 4.32 | 21,814 |
| The Trojan War | 0 | - | 4.81 | 37,396 |
| Geography of Ancient Greece | 0 | - | 4.75 | 30,830 |
| Name that Greek Letter | 0 | - | 4.94 | 308,510 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.86 | 101,035 |
| Word Chain - Italy | 0 | - | 4.07 | 22,573 |
| Italy Multiple Choice | 0 | - | 4.74 | 98,692 |
| Embarrassing Chapters in Italian History | 0 | - | 4.21 | 11,583 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 74,382 |
| Roman Emperors | 0 | - | 4.96 | 107,871 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,355 |
| Greenland... or Iceland? | 0 | - | 4.50 | 42,809 |
| Countries Closest to Iceland | 0 | - | 4.88 | 67,560 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,104 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 75,951 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 28,651 |
| The British Royal Family - Modern Times | 0 | - | 4.15 | 21,039 |
| People on Money - England | 0 | - | 4.34 | 16,251 |
| Name a Valid English City | 0 | - | 4.18 | 15,948 |
| English Monarchs in Order by First Letter | 0 | - | 4.40 | 27,830 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 265,706 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,052 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 106,930 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,234 |
| European Geography By Letter - D | 0 | - | 4.51 | 102,797 |
| European Geography By Letter - L | 0 | - | 4.51 | 108,166 |
| European Geography By Letter - M | 0 | - | 4.53 | 117,503 |
| European Geography By Letter - P | 0 | - | 4.79 | 92,849 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,379 |
| European Geography By Letter - R | 0 | - | 4.41 | 89,776 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,183 |
| Europe Map Quiz | 0 | - | 5.00 | 4,503,846 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 68,999 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 69,547 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,102 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,401 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 96,197 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 65,074 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 22,938 |
| Famous Swiss and Austrian People | 0 | - | 4.39 | 14,004 |
| Capitals of French Regions | 0 | - | 4.42 | 15,366 |
| Capitals of German States | 0 | - | 4.70 | 28,023 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 21,729 |
| Country Quiz on a Map - Germany | 0 | - | 4.93 | 30,668 |
| Olympian Gods Quiz | 0 | - | 4.96 | 469,047 |
| Ancient Greek Words | 0 | - | 4.92 | 104,125 |
| British to American Food Translation. | 0 | - | 3.40 | 51,098 |
| Fictional Characters from Great Britain | 0 | - | 4.13 | 31,613 |
| Beatles Songs Quiz | 0 | - | 4.96 | 220,960 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 281,671 |
| Famous Scottish People | 0 | - | 4.20 | 17,801 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 356,641 |
| Top World Languages | 0 | - | 4.91 | 757,265 |
| Africa Map Quiz | 0 | - | 5.00 | 2,017,145 |
| Official Languages of South Africa | 0 | - | 4.55 | 25,456 |
| Oceania Map Quiz | 0 | - | 4.98 | 597,941 |
| Australian Capitals | 0 | - | 4.92 | 61,751 |
| European Physical Geography | 0 | - | 4.23 | 32,626 |
| History of Russia Quiz | 0 | - | 4.47 | 30,920 |
| Geography of Russia | 0 | - | 4.56 | 20,761 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,690 |
| History of Austria | 0 | - | 4.69 | 17,016 |
| Austria Country Quiz | 0 | - | 4.56 | 56,771 |
| Belgium Country Quiz | 0 | - | 4.65 | 67,781 |
| France Country Quiz | 0 | - | 4.71 | 127,667 |
| Biggest French Empire Countries | 0 | - | 4.50 | 63,285 |
| Geography of the French Empire | 0 | - | 4.51 | 26,066 |
| The French Revolution | 0 | - | 4.45 | 22,666 |
| Tour de France Winners | 0 | - | 4.22 | 14,309 |
| History of France Quiz | 0 | - | 4.56 | 41,370 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,666 |
| Greece Country Quiz | 0 | - | 4.70 | 62,796 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,061 |
| History of Italy | 0 | - | 4.50 | 30,860 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 414,894 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,096 |
| Luxembourg Country Quiz | 0 | - | 4.74 | 31,718 |
| Monaco Country Quiz | 0 | - | 4.46 | 39,436 |
| Netherlands Country Quiz | 0 | - | 4.51 | 76,414 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 87,534 |
| Portugal Country Quiz | 0 | - | 4.68 | 67,990 |
| The Portuguese Empire | 0 | - | 4.54 | 11,635 |
| Spain Country Quiz | 0 | - | 4.44 | 121,354 |
| Switzerland Country Quiz | 0 | - | 4.54 | 59,930 |
