| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,797 |
| Official European Union Languages | 0 | - | 4.97 | 237,480 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,212 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,345 |
| Slavic Languages | 0 | - | 4.68 | 54,117 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,203 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,706 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,646 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,487 |
| History of Russia Quiz | 0 | - | 4.49 | 31,829 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,622 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,051 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,501 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,824 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,300 |
| Celtic Nations | 0 | - | 4.69 | 46,860 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,046 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,040 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,133 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,615 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,425 |
| Slavic Countries | 0 | - | 4.96 | 111,144 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,157 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,705 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,014 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,936 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,330 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,572 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,498 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,597 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,210 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,970 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,441 |
| States of Germany | 0 | - | 4.96 | 150,852 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,277 |
| Regions of Italy | 0 | - | 4.92 | 75,051 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,042 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,994 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,637 |
| Champions League Winners | 0 | - | 4.92 | 999,760 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,265 |
| Geography of Russia | 0 | - | 4.57 | 21,463 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,789 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,603 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,486 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,374 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,874 |
| Departments of France | 0 | - | 4.93 | 53,158 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,418 |
| England or Wales? | 0 | - | 4.94 | 45,452 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,069 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,494 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,622 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,206 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,683 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,057 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,607 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 643,957 |
| Name that Greek Letter | 0 | - | 4.93 | 322,313 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,507 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,318 |
| Languages of Spain | 0 | - | 4.36 | 23,215 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,165 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,772 |
| Word Chain - Russia | 0 | - | 4.33 | 15,712 |
| The Trojan War | 0 | - | 4.83 | 39,533 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,024 |
| History of Italy | 0 | - | 4.55 | 31,877 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,382 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,223 |
| Roman Emperors | 0 | - | 4.95 | 119,036 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,545 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,069 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,981 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 32,474 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,632 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,087 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,063 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,939 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,404 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,236 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,994 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,773 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,336 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,544 |
| Europe Map Quiz | 0 | - | 5.00 | 4,742,130 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,095 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,735 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,040 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,086 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,761 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,749 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,122 |
| Capitals of French Regions | 0 | - | 4.45 | 16,011 |
| Regions of France | 0 | - | 4.78 | 119,754 |
| France Immigration by Country | 0 | - | 4.72 | 76,135 |
| Famous Germans | 0 | - | 4.50 | 54,793 |
| German Groups of Things | 0 | - | 4.46 | 38,366 |
| Capitals of German States | 0 | - | 4.74 | 28,881 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,175 |
| Germany True or False? | 0 | - | 4.61 | 48,630 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,668 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,852 |
| Ancient Greek Words | 0 | - | 4.93 | 111,011 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,796 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,999 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,125 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,733 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,814 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,025 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,345 |
| Top World Languages | 0 | - | 4.92 | 816,144 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,200 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,103 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,716 |
| Australian Capitals | 0 | - | 4.92 | 62,642 |
| European Physical Geography | 0 | - | 4.26 | 33,412 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,836 |
| History of Austria | 0 | - | 4.70 | 17,788 |
| Geography of the French Empire | 0 | - | 4.45 | 26,983 |
| The French Revolution | 0 | - | 4.46 | 23,847 |
| France Multiple Choice | 0 | - | 4.38 | 40,671 |
| History of France | 0 | - | 4.59 | 56,496 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,416 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,774 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,781 |
| The Vikings! | 0 | - | 4.46 | 28,276 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,796 |
| The Portuguese Empire | 0 | - | 4.58 | 12,019 |
| American to British Word Translation | 0 | - | 4.13 | 137,951 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,379 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,440 |
| Champions League Top 4 | 0 | - | 4.77 | 134,702 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,261 |
| Asia Map Quiz | 0 | - | 4.99 | 909,903 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 32,738 |
| Countries by Official Language | 0 | - | 4.95 | 193,631 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,945 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,210 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,133 |
| Countries in their Native Language | 0 | - | 4.99 | 197,342 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,523 |
| Countries of Africa | 0 | - | 5.00 | 2,517,668 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,163 |
| African East Coast | 0 | - | 4.96 | 95,408 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,274 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,097 |
| Australia Map Quiz | 0 | - | 4.94 | 343,062 |
| United States Map Quiz | 0 | - | 4.98 | 4,146,812 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,850 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,416 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,700 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,015 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,391 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,819 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,058 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,683 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,644 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,329 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,051 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,403 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,485 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,628 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,138 |
| European Geography A-Z | 0 | - | 4.28 | 49,088 |
| Country Codes of Europe | 0 | - | 3.46 | 13,667 |
| The Only European Country ... | 0 | - | 4.91 | 214,830 |
| European Countries NOT in NATO | 0 | - | 4.87 | 60,131 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,262 |
| Austria... or Australia? | 0 | - | 4.68 | 104,049 |
| Presidents of France | 0 | - | 4.25 | 23,958 |
| Word Chain - France | 0 | - | 4.38 | 42,657 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,849 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,825 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,629 |
| Italian Foods | 0 | - | 4.31 | 72,407 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,110 |
| The Mafia Quiz | 0 | - | 4.46 | 23,237 |
| History of The Netherlands | 0 | - | 4.46 | 17,351 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,984 |
| Canary Islands | 0 | - | 4.61 | 17,428 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,606 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,325 |
| British Spellings | 0 | - | 4.07 | 99,335 |
| British Groups of Things | 0 | - | 4.25 | 82,750 |
| British Acronyms | 0 | - | 4.39 | 45,681 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,985 |
| British Monopoly Board | 0 | - | 4.52 | 41,086 |
| Geography of Scotland | 0 | - | 4.63 | 21,525 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,059 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,601 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,422 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,175 |
| Top World Languages A-Z | 0 | - | 4.83 | 36,433 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,939 |
| German-Speaking Countries | 0 | - | 4.89 | 137,217 |
| Italian Name Translation | 0 | - | 4.81 | 45,700 |
| French-Speaking Countries | 0 | - | 4.85 | 269,530 |
| Officially Recognized Languages of India | 0 | - | 4.38 | 31,171 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,586 |
