| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,868 |
| Official European Union Languages | 0 | - | 4.97 | 240,374 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,823 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,937 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,061 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 217,455 |
| History of Russia Quiz | 0 | - | 4.47 | 32,026 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,406 |
| Geography of Russia | 0 | - | 4.57 | 21,619 |
| Slavic Languages | 0 | - | 4.67 | 54,784 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,354 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,384 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,106 |
| Top European Languages on a Map | 0 | - | 4.77 | 133,015 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,039 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,663 |
| Celtic Nations | 0 | - | 4.61 | 47,129 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,139 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,194 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,529 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,367 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,919 |
| Slavic Countries | 0 | - | 4.96 | 112,513 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,752 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,510 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,678 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 72,229 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,818 |
| Top African Languages on a Map | 0 | - | 4.94 | 75,486 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,535 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,223 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,409 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,097 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,910 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,827 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,079 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,178 |
| Famous Russians | 0 | - | 4.16 | 23,927 |
| Word Chain - Russia | 0 | - | 4.33 | 15,805 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,585 |
| States of Germany | 0 | - | 4.95 | 154,943 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,808 |
| Regions of Italy | 0 | - | 4.92 | 77,265 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,917 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,597 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,901 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,092 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,869 |
| Champions League Winners | 0 | - | 4.92 | 1,018,046 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,337 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,332 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,265 |
| Russia Country Quiz | 0 | - | 4.83 | 115,451 |
| Countries That Border Russia | 0 | - | 4.98 | 464,926 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,833 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,642 |
| Departments of France | 0 | - | 4.93 | 55,403 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,783 |
| England or Wales? | 0 | - | 4.94 | 46,041 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,486 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,788 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,741 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,448 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 124,076 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,758 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,665 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,057 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,372 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,107 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,094 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,063 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,269 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,973 |
| Name that Greek Letter | 0 | - | 4.93 | 325,288 |
| Languages of Spain | 0 | - | 4.36 | 23,473 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,704 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,131 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,903 |
| The Trojan War | 0 | - | 4.83 | 40,073 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,219 |
| History of Italy | 0 | - | 4.55 | 32,185 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,523 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,695 |
| Roman Emperors | 0 | - | 4.95 | 121,440 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,851 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,469 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 281,033 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,666 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,068 |
| Top World Languages | 0 | - | 4.92 | 831,383 |
| Australian Capitals | 0 | - | 4.92 | 62,862 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,346 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,757 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,260 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,758 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,273 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,788 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,282 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,889 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,169 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,786 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,469 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,572 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,243 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,515 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,468 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,564 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,616 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,792 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,911 |
| Capitals of French Regions | 0 | - | 4.45 | 16,209 |
| Regions of France | 0 | - | 4.70 | 122,407 |
| France Immigration by Country | 0 | - | 4.70 | 77,011 |
| Famous Germans | 0 | - | 4.50 | 55,870 |
| German Groups of Things | 0 | - | 4.47 | 38,670 |
| Capitals of German States | 0 | - | 4.74 | 29,095 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,584 |
| Germany True or False? | 0 | - | 4.61 | 49,066 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,576 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,448 |
| Ancient Greek Words | 0 | - | 4.93 | 112,662 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,537 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,937 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,459 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,960 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,713 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,996 |
| Countries by Official Language | 0 | - | 4.95 | 196,240 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,634 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,971 |
| Countries in their Native Language | 0 | - | 4.99 | 199,971 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,147 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,399 |
| European Physical Geography | 0 | - | 4.26 | 33,617 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,508 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,162 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,045 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,835 |
| Romania Country Quiz | 0 | - | 4.63 | 54,212 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| Geography of the French Empire | 0 | - | 4.45 | 27,234 |
| The French Revolution | 0 | - | 4.47 | 24,166 |
| France Multiple Choice | 0 | - | 4.39 | 40,875 |
| History of France | 0 | - | 4.61 | 57,726 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,577 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,445 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,618 |
| The Vikings! | 0 | - | 4.46 | 28,424 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,441 |
| The Portuguese Empire | 0 | - | 4.58 | 12,117 |
| American to British Word Translation | 0 | - | 4.14 | 139,825 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,460 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,850 |
| Champions League Top 4 | 0 | - | 4.78 | 139,583 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,452 |
| Asia Map Quiz | 0 | - | 4.99 | 926,786 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,452 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 31,637 |
| Africa Map Quiz | 0 | - | 5.00 | 2,130,808 |
| Official Languages of South Africa | 0 | - | 4.57 | 26,261 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,602 |
| Australia Map Quiz | 0 | - | 4.95 | 346,511 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,600 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,351 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,990 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,240 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,602 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,398 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,651 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,347 |
| European Geography By Letter - G | 0 | - | 4.27 | 104,121 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,697 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,340 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,725 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,689 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,943 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,993 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,497 |
| European Geography A-Z | 0 | - | 4.29 | 49,523 |
| Country Codes of Europe | 0 | - | 3.45 | 13,849 |
| The Only European Country ... | 0 | - | 4.91 | 219,597 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,835 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,832 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,245 |
| Austria... or Australia? | 0 | - | 4.67 | 104,847 |
| Famous French People | 0 | - | 4.05 | 36,159 |
| Presidents of France | 0 | - | 4.25 | 24,372 |
| Word Chain - France | 0 | - | 4.38 | 42,961 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,279 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,073 |
| Figures from Greek Mythology | 0 | - | 4.91 | 191,744 |
| Italian Foods | 0 | - | 4.30 | 73,393 |
| Countries Italy Declared War On | 0 | - | 4.74 | 48,194 |
| The Mafia Quiz | 0 | - | 4.46 | 23,453 |
| History of The Netherlands | 0 | - | 4.46 | 17,572 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,137 |
| Canary Islands | 0 | - | 4.62 | 17,549 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 30,159 |
| British Spellings | 0 | - | 4.06 | 99,625 |
| British Groups of Things | 0 | - | 4.26 | 83,044 |
