| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,003 |
| Official European Union Languages | 0 | - | 4.97 | 238,147 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,628 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,809 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,331 |
| States of Germany | 0 | - | 4.96 | 151,960 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,899 |
| Regions of Italy | 0 | - | 4.92 | 75,570 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,909 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,659 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,025 |
| Departments of France | 0 | - | 4.93 | 53,815 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,880 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,517 |
| England or Wales? | 0 | - | 4.94 | 45,609 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,547 |
| Slavic Languages | 0 | - | 4.68 | 54,275 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,885 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,942 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,876 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,763 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,865 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,708 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,656 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,045 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,361 |
| Celtic Nations | 0 | - | 4.69 | 46,909 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,256 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,000 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 170,696 |
| Regions of France | 0 | - | 4.75 | 120,441 |
| France Immigration by Country | 0 | - | 4.70 | 76,409 |
| Famous Germans | 0 | - | 4.50 | 55,180 |
| German Groups of Things | 0 | - | 4.46 | 38,440 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,289 |
| Germany True or False? | 0 | - | 4.61 | 48,742 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,877 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,317 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,239 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,236 |
| Counties of England | 0 | - | 4.97 | 794,901 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,083 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,587 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,396 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,266 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,441 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,913 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,985 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,717 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,428 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,170 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,559 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,040 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,661 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,049 |
| Champions League Winners | 0 | - | 4.92 | 1,003,973 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,404 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,050 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,861 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,574 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,661 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,651 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,316 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,705 |
| Famous French People | 0 | - | 4.06 | 34,994 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,471 |
| Word Chain - France | 0 | - | 4.38 | 42,744 |
| Germany Country Quiz | 0 | - | 4.82 | 157,598 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,893 |
| Italy Country Quiz | 0 | - | 4.82 | 123,217 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,145 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,827 |
| Italian Foods | 0 | - | 4.30 | 72,657 |
| The Mafia Quiz | 0 | - | 4.46 | 23,299 |
| History of The Netherlands | 0 | - | 4.46 | 17,407 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,663 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,391 |
| Canary Islands | 0 | - | 4.62 | 17,460 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,732 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,611 |
| British Spellings | 0 | - | 4.06 | 99,408 |
| British Groups of Things | 0 | - | 4.25 | 82,835 |
| British Acronyms | 0 | - | 4.39 | 45,761 |
| UK Immigration by Country | 0 | - | 4.94 | 140,684 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,021 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,474 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,245 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,687 |
| Geography of Scotland | 0 | - | 4.63 | 21,595 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,812 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,562 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,644 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,505 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,453 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,349 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,720 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,618 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,617 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,046 |
| France A-Z | 0 | - | 4.16 | 38,174 |
| French History Multiple Choice | 0 | - | 4.55 | 33,002 |
| History of Germany | 0 | - | 4.39 | 52,781 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,156 |
| Name that Greek Letter | 0 | - | 4.93 | 323,104 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,608 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,580 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,422 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,585 |
| Languages of Spain | 0 | - | 4.36 | 23,284 |
| Switzerland A-Z | 0 | - | 4.45 | 25,621 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,635 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,002 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,696 |
| Malta Country Quiz | 0 | - | 4.81 | 31,008 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,896 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,216 |
| History of Russia Quiz | 0 | - | 4.49 | 31,882 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,696 |
| Movies Set in France | 0 | - | 4.26 | 13,114 |
| French Inventions | 0 | - | 4.08 | 13,890 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,070 |
| History of Paris | 0 | - | 4.24 | 13,637 |
| Word Chain - Germany | 0 | - | 4.31 | 22,564 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,919 |
| The Trojan War | 0 | - | 4.83 | 39,653 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,549 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,556 |
| History of Italy | 0 | - | 4.55 | 31,936 |
| Word Chain - Italy | 0 | - | 4.07 | 23,149 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,651 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,088 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,421 |
| Roman Emperors | 0 | - | 4.95 | 119,663 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,615 |
| Famous Nordic People | 0 | - | 4.34 | 20,066 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,611 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,168 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,327 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,517 |
| People on Money - England | 0 | - | 4.29 | 16,602 |
| Name a Valid English City | 0 | - | 4.19 | 16,703 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,699 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,530 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,185 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,643 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,375 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,104 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,158 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,173 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,247 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,579 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,322 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,818 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,161 |
| Europe Map Quiz | 0 | - | 5.00 | 4,755,876 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,211 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,870 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,160 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,185 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,387 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,367 |
| Capitals of French Regions | 0 | - | 4.45 | 16,041 |
| Kings of France Quiz | 0 | - | 4.20 | 32,687 |
| Capitals of German States | 0 | - | 4.74 | 28,933 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,288 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,623 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,482 |
| Ancient Greek Words | 0 | - | 4.93 | 111,361 |
| British to American Food Translation | 0 | - | 3.38 | 51,946 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,413 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,684 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,467 |
| Famous Scottish People | 0 | - | 4.22 | 18,389 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,590 |
| Top World Languages | 0 | - | 4.92 | 820,148 |
| Africa Map Quiz | 0 | - | 5.00 | 2,114,849 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,138 |
| Oceania Map Quiz | 0 | - | 4.98 | 640,665 |
| Australian Capitals | 0 | - | 4.92 | 62,696 |
| European Physical Geography | 0 | - | 4.26 | 33,472 |
| Geography of Russia | 0 | - | 4.57 | 21,511 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,909 |
| History of Austria | 0 | - | 4.70 | 17,835 |
| Austria Country Quiz | 0 | - | 4.57 | 59,644 |
| Belgium Country Quiz | 0 | - | 4.70 | 71,671 |
| France Country Quiz | 0 | - | 4.70 | 134,775 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,114 |
| Geography of the French Empire | 0 | - | 4.45 | 27,026 |
| The French Revolution | 0 | - | 4.46 | 23,903 |
| France Multiple Choice | 0 | - | 4.39 | 40,711 |
| Tour de France Winners | 0 | - | 4.27 | 15,340 |
| History of France | 0 | - | 4.59 | 56,844 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,464 |
| Greece Country Quiz | 0 | - | 4.74 | 66,148 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,351 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,013 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,700 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,442 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,401 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,385 |
