| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,953 |
| Official European Union Languages | 0 | - | 4.97 | 237,974 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,522 |
| Slavic Languages | 0 | - | 4.68 | 54,234 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,435 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,791 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,192 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,844 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,782 |
| History of Russia Quiz | 0 | - | 4.49 | 31,870 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,679 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,726 |
| Top African Languages on a Map | 0 | - | 4.93 | 73,509 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,614 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,997 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,199 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,798 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,140 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,901 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,637 |
| Slavic Countries | 0 | - | 4.96 | 111,408 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,269 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,851 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,722 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,184 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,405 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,349 |
| Celtic Nations | 0 | - | 4.69 | 46,899 |
| Champions League Winners | 0 | - | 4.92 | 1,002,930 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,804 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,602 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,591 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,014 |
| Geography of Russia | 0 | - | 4.57 | 21,502 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,658 |
| States of Germany | 0 | - | 4.96 | 151,653 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,808 |
| Regions of Italy | 0 | - | 4.92 | 75,449 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,601 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,515 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,933 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,846 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,653 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,365 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,355 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,100 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,493 |
| Departments of France | 0 | - | 4.93 | 53,644 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,498 |
| England or Wales? | 0 | - | 4.94 | 45,565 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,587 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,540 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,435 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,221 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,286 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,696 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,001 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,866 |
| The Trojan War | 0 | - | 4.83 | 39,623 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,657 |
| Name that Greek Letter | 0 | - | 4.93 | 322,926 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,428 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,564 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,378 |
| Roman Emperors | 0 | - | 4.95 | 119,570 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,400 |
| Languages of Spain | 0 | - | 4.36 | 23,268 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 218,856 |
| Word Chain - Russia | 0 | - | 4.33 | 15,736 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,245 |
| History of Italy | 0 | - | 4.55 | 31,927 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,579 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,601 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,149 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,522 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,721 |
| European Geography By Letter - A | 0 | - | 4.52 | 143,146 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,274 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,054 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,833 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,954 |
| European Geography By Letter - M | 0 | - | 4.67 | 129,897 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,071 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,400 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,108 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,689 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,975 |
| Europe Map Quiz | 0 | - | 5.00 | 4,752,455 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,183 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,845 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,130 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,159 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,230 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,331 |
| Capitals of French Regions | 0 | - | 4.45 | 16,032 |
| Regions of France | 0 | - | 4.75 | 120,269 |
| France Immigration by Country | 0 | - | 4.70 | 76,343 |
| Famous Germans | 0 | - | 4.50 | 55,050 |
| German Groups of Things | 0 | - | 4.46 | 38,420 |
| Capitals of German States | 0 | - | 4.74 | 28,916 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,261 |
| Germany True or False? | 0 | - | 4.61 | 48,717 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,822 |
| Ancient Greek Words | 0 | - | 4.93 | 111,260 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,148 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,962 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,176 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,207 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,003 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,394 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,560 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,445 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,382 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,498 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,366 |
| Top World Languages | 0 | - | 4.92 | 819,247 |
| Africa Map Quiz | 0 | - | 5.00 | 2,113,353 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,132 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,838 |
| Australian Capitals | 0 | - | 4.92 | 62,686 |
| European Physical Geography | 0 | - | 4.26 | 33,450 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,891 |
| History of Austria | 0 | - | 4.70 | 17,826 |
| Geography of the French Empire | 0 | - | 4.45 | 27,015 |
| The French Revolution | 0 | - | 4.46 | 23,889 |
| France Multiple Choice | 0 | - | 4.38 | 40,692 |
| History of France | 0 | - | 4.59 | 56,762 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,453 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,265 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,809 |
| The Vikings! | 0 | - | 4.46 | 28,308 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,996 |
| The Portuguese Empire | 0 | - | 4.58 | 12,043 |
| American to British Word Translation | 0 | - | 4.14 | 138,632 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,528 |
| Champions League Top 4 | 0 | - | 4.77 | 135,521 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,592 |
| Asia Map Quiz | 0 | - | 4.99 | 913,295 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,895 |
| Countries by Official Language | 0 | - | 4.95 | 194,469 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,351 |
| Places in their Native Language #2 | 0 | - | 4.81 | 133,219 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,302 |
| Countries in their Native Language | 0 | - | 4.99 | 198,032 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,166 |
| Countries of Africa | 0 | - | 5.00 | 2,527,469 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,488 |
| African East Coast | 0 | - | 4.96 | 95,723 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,535 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,394 |
| Australia Map Quiz | 0 | - | 4.95 | 343,653 |
| United States Map Quiz | 0 | - | 4.98 | 4,151,457 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,549 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,539 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,337 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,745 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,049 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,401 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,575 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,222 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,086 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,763 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,373 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,647 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,589 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,897 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,653 |
| European Geography A-Z | 0 | - | 4.29 | 49,173 |
| Country Codes of Europe | 0 | - | 3.43 | 13,697 |
| The Only European Country ... | 0 | - | 4.91 | 215,745 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,612 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,394 |
| Seas of Europe | 0 | - | 4.37 | 84,552 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,005 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,281 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,939 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,608 |
| Austria... or Australia? | 0 | - | 4.68 | 104,198 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,032 |
| Famous French People | 0 | - | 4.09 | 33,176 |
| Presidents of France | 0 | - | 4.25 | 24,015 |
| France A-Z | 0 | - | 4.16 | 38,149 |
| Word Chain - France | 0 | - | 4.38 | 42,721 |
| History of Germany | 0 | - | 4.39 | 52,762 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,911 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,866 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,399 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,588 |
| Italian Foods | 0 | - | 4.30 | 72,580 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,227 |
| The Mafia Quiz | 0 | - | 4.46 | 23,285 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,674 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,836 |
| Roman Names for Places | 0 | - | 4.62 | 58,140 |
| Byzantine History | 0 | - | 4.91 | 28,741 |
| History of The Netherlands | 0 | - | 4.46 | 17,397 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,005 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,569 |
| Canary Islands | 0 | - | 4.62 | 17,455 |
