| European Countries by First 2 Letters | 0 | - | 4.95 | 526,740 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,039 |
| History of Russia Quiz | 0 | - | 4.49 | 31,806 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,595 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,688 |
| Official European Union Languages | 0 | - | 4.97 | 237,171 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,032 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,641 |
| Geography of Russia | 0 | - | 4.57 | 21,445 |
| Slavic Languages | 0 | - | 4.67 | 54,045 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,594 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,604 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,259 |
| Celtic Nations | 0 | - | 4.69 | 46,837 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,940 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,191 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,547 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,418 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,327 |
| Slavic Countries | 0 | - | 4.96 | 110,990 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,090 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,775 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,468 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,337 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,199 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,425 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,961 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,487 |
| Word Chain - Russia | 0 | - | 4.33 | 15,694 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,304 |
| States of Germany | 0 | - | 4.96 | 150,435 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,137 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,609 |
| Regions of Italy | 0 | - | 4.92 | 74,890 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,937 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,582 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,456 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,569 |
| Champions League Winners | 0 | - | 4.92 | 997,775 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,475 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,611 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,075 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,318 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,891 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,518 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,437 |
| Departments of France | 0 | - | 4.93 | 52,987 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,453 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,400 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,276 |
| England or Wales? | 0 | - | 4.94 | 45,389 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 128,734 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,732 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,931 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,552 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,331 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,279 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,248 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,880 |
| Name that Greek Letter | 0 | - | 4.94 | 321,944 |
| History of Italy | 0 | - | 4.55 | 31,854 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,269 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,504 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,012 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,062 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,228 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,671 |
| Famous Russians | 0 | - | 4.16 | 23,742 |
| Capitals of French Regions | 0 | - | 4.45 | 15,996 |
| Capitals of German States | 0 | - | 4.74 | 28,846 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,127 |
| The Trojan War | 0 | - | 4.83 | 39,477 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,754 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,127 |
| Roman Emperors | 0 | - | 4.95 | 118,667 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,236 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,315 |
| Australian Capitals | 0 | - | 4.92 | 62,609 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,502 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,985 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,948 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,798 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,305 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,059 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,908 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,696 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,073 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,405 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,031 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,665 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,990 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,025 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,661 |
| Regions of France | 0 | - | 4.78 | 119,492 |
| France Immigration by Country | 0 | - | 4.72 | 76,035 |
| Famous Germans | 0 | - | 4.50 | 54,694 |
| German Groups of Things | 0 | - | 4.46 | 38,333 |
| Germany True or False? | 0 | - | 4.61 | 48,573 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,571 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,079 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,658 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,901 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,090 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,091 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,024 |
| Asia Map Quiz | 0 | - | 4.99 | 908,190 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,942 |
| African East Coast | 0 | - | 4.96 | 95,190 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,061 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,958 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,452 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,338 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,322 |
| European Physical Geography | 0 | - | 4.26 | 33,386 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,817 |
| Country Codes of Europe | 0 | - | 3.46 | 13,661 |
| The Only European Country ... | 0 | - | 4.91 | 214,275 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,819 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,806 |
| History of Austria | 0 | - | 4.70 | 17,772 |
| Presidents of France | 0 | - | 4.25 | 23,930 |
| Geography of the French Empire | 0 | - | 4.45 | 26,960 |
| The French Revolution | 0 | - | 4.46 | 23,814 |
| France Multiple Choice | 0 | - | 4.38 | 40,651 |
| History of France | 0 | - | 4.59 | 56,269 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,400 |
| Ancient Greek Words | 0 | - | 4.92 | 110,841 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,684 |
| The Vikings! | 0 | - | 4.46 | 28,260 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,742 |
| The Portuguese Empire | 0 | - | 4.54 | 12,004 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,970 |
| American to British Word Translation | 0 | - | 4.12 | 136,387 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,751 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,304 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,415 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,413 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,489 |
| Champions League Top 4 | 0 | - | 4.77 | 134,166 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,655 |
| Countries of Africa | 0 | - | 5.00 | 2,512,253 |
| Australia Map Quiz | 0 | - | 4.94 | 342,757 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,059 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,640 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,294 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,731 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,964 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,353 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,557 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,234 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,981 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,342 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,442 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,555 |
| European Geography A-Z | 0 | - | 4.28 | 49,041 |
| Austria... or Australia? | 0 | - | 4.68 | 103,949 |
| Word Chain - France | 0 | - | 4.38 | 42,610 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,811 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,799 |
| Italian Foods | 0 | - | 4.31 | 72,287 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,035 |
| The Mafia Quiz | 0 | - | 4.46 | 23,216 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,144 |
| History of The Netherlands | 0 | - | 4.46 | 17,337 |
| Canary Islands | 0 | - | 4.61 | 17,419 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,234 |
| British Spellings | 0 | - | 4.07 | 99,283 |
| British Groups of Things | 0 | - | 4.25 | 82,717 |
| British Acronyms | 0 | - | 4.39 | 45,653 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,970 |
| British Monopoly Board | 0 | - | 4.52 | 41,066 |
| Geography of Scotland | 0 | - | 4.63 | 21,505 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,947 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,509 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,456 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,821 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,680 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,416 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,608 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,335 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,726 |
| African Island Countries | 0 | - | 4.96 | 100,910 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,904 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,810 |
| Australian States and Territories | 0 | - | 4.96 | 141,068 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,055 |
| Australia True or False | 0 | - | 4.87 | 56,559 |
| Flags of North and South America | 0 | - | 4.99 | 368,316 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,217 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,279 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,398 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,218 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,713 |
| North America Map Quiz | 0 | - | 4.98 | 244,996 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,423 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,606 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,623 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,720 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,560 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,319 |
