| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,566 |
| Official European Union Languages | 0 | - | 4.97 | 236,469 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,670 |
| Slavic Languages | 0 | - | 4.67 | 53,962 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,240 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,336 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,078 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,522 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,087 |
| History of Russia Quiz | 0 | - | 4.49 | 31,784 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,558 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,550 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,380 |
| Third Most Common Language by U.S. State | 0 | - | 4.89 | 113,370 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,593 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,827 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,752 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,789 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,219 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,160 |
| Slavic Countries | 0 | - | 4.96 | 110,822 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,035 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,683 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,651 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,233 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,236 |
| Celtic Nations | 0 | - | 4.69 | 46,807 |
| Champions League Winners | 0 | - | 4.92 | 995,952 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,307 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,188 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,196 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,745 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,907 |
| Geography of Russia | 0 | - | 4.57 | 21,424 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,160 |
| States of Germany | 0 | - | 4.96 | 149,962 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,991 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,511 |
| Regions of Italy | 0 | - | 4.92 | 74,672 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,785 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,277 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,100 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,700 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,400 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,128 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,429 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,140 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,100 |
| Departments of France | 0 | - | 4.93 | 52,752 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,356 |
| England or Wales? | 0 | - | 4.94 | 45,306 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,422 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,441 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,597 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,969 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,963 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,777 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,507 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,575 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,438 |
| The Trojan War | 0 | - | 4.83 | 39,421 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,708 |
| Name that Greek Letter | 0 | - | 4.94 | 321,587 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,496 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,423 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,030 |
| Roman Emperors | 0 | - | 4.95 | 118,419 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,241 |
| Languages of Spain | 0 | - | 4.36 | 23,145 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 216,580 |
| Word Chain - Russia | 0 | - | 4.33 | 15,685 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,789 |
| History of Italy | 0 | - | 4.55 | 31,809 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,137 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,477 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,975 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,422 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,469 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,365 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 110,866 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,800 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,674 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,191 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,845 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,648 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,607 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,008 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,277 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,105 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,979 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,606 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,932 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,970 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,575 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,129 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,601 |
| Capitals of French Regions | 0 | - | 4.45 | 15,982 |
| Regions of France | 0 | - | 4.78 | 119,177 |
| France Immigration by Country | 0 | - | 4.72 | 75,945 |
| Famous Germans | 0 | - | 4.50 | 54,598 |
| German Groups of Things | 0 | - | 4.46 | 38,299 |
| Capitals of German States | 0 | - | 4.74 | 28,809 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,090 |
| Germany True or False? | 0 | - | 4.61 | 48,522 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,441 |
| Ancient Greek Words | 0 | - | 4.92 | 110,644 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,330 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,606 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,763 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,039 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,923 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,389 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,995 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,288 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,066 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,030 |
| Top World Languages | 0 | - | 4.92 | 812,776 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,839 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,045 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,078 |
| Australian Capitals | 0 | - | 4.92 | 62,592 |
| European Physical Geography | 0 | - | 4.26 | 33,373 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,765 |
| History of Austria | 0 | - | 4.70 | 17,743 |
| Geography of the French Empire | 0 | - | 4.48 | 26,923 |
| The French Revolution | 0 | - | 4.46 | 23,773 |
| France Multiple Choice | 0 | - | 4.38 | 40,629 |
| History of France | 0 | - | 4.59 | 55,983 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,382 |
| Figures from Greek Mythology | 0 | - | 4.91 | 184,864 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 433,418 |
| The Vikings! | 0 | - | 4.45 | 28,244 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,681 |
| The Portuguese Empire | 0 | - | 4.54 | 11,987 |
| American to British Word Translation | 0 | - | 4.06 | 117,042 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,200 |
| Champions League Top 4 | 0 | - | 4.77 | 133,708 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,451 |
| Asia Map Quiz | 0 | - | 4.99 | 906,718 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,527 |
| Countries by Official Language | 0 | - | 4.95 | 192,714 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,385 |
| Places in their Native Language #2 | 0 | - | 4.85 | 122,946 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,048 |
| Countries in their Native Language | 0 | - | 4.99 | 196,574 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,749 |
| Countries of Africa | 0 | - | 5.00 | 2,506,725 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,780 |
| African East Coast | 0 | - | 4.96 | 95,008 |
| Western Africa Map Quiz | 0 | - | 4.97 | 72,897 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,767 |
| Australia Map Quiz | 0 | - | 4.94 | 342,402 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,212 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,050 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,182 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,905 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,238 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,180 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,441 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,869 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,246 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,462 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,137 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,903 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,284 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,387 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,493 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,480 |
| European Geography A-Z | 0 | - | 4.28 | 48,986 |
| Country Codes of Europe | 0 | - | 3.46 | 13,651 |
| The Only European Country ... | 0 | - | 4.91 | 213,728 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,465 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,104 |
| Seas of Europe | 0 | - | 4.37 | 83,820 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,230 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,758 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,550 |
| Austria... or Australia? | 0 | - | 4.68 | 103,847 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 17,960 |
| Presidents of France | 0 | - | 4.25 | 23,892 |
| France A-Z | 0 | - | 4.16 | 38,053 |
| Word Chain - France | 0 | - | 4.38 | 42,575 |
| History of Germany | 0 | - | 4.39 | 52,610 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,761 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,765 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 72,873 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,425 |
| Italian Foods | 0 | - | 4.31 | 72,154 |
| Countries Italy Declared War On | 0 | - | 4.75 | 42,932 |
| The Mafia Quiz | 0 | - | 4.46 | 23,203 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,527 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,656 |
| Roman Names for Places | 0 | - | 4.62 | 57,862 |
| Byzantine History | 0 | - | 4.91 | 28,610 |
| History of The Netherlands | 0 | - | 4.46 | 17,305 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,954 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,469 |
| Canary Islands | 0 | - | 4.61 | 17,397 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,104 |
| Switzerland A-Z | 0 | - | 4.45 | 25,502 |
