| European Countries by First 2 Letters | 0 | - | 4.95 | 526,736 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,036 |
| 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 | 68,687 |
| Official European Union Languages | 0 | - | 4.97 | 237,166 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,031 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,639 |
| Geography of Russia | 0 | - | 4.57 | 21,445 |
| Slavic Languages | 0 | - | 4.67 | 54,043 |
| 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 | 86,939 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,172 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 168,545 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,415 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,327 |
| Slavic Countries | 0 | - | 4.96 | 110,987 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,089 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 350,762 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,466 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,336 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,199 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,423 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,956 |
| Federal Subjects of Russia | 0 | - | 4.94 | 144,481 |
| Word Chain - Russia | 0 | - | 4.33 | 15,693 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,303 |
| States of Germany | 0 | - | 4.96 | 150,433 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,134 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,606 |
| Regions of Italy | 0 | - | 4.92 | 74,889 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,934 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,573 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,455 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,567 |
| Champions League Winners | 0 | - | 4.92 | 997,760 |
| 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 | 113,316 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,881 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,518 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,432 |
| Departments of France | 0 | - | 4.93 | 52,985 |
| 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 | 128,733 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,732 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,930 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,552 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,330 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,278 |
| Embarrassing Chapters in Russian History | 0 | - | 3.73 | 20,246 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 642,869 |
| Name that Greek Letter | 0 | - | 4.94 | 321,942 |
| History of Italy | 0 | - | 4.55 | 31,854 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,268 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,504 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,011 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,002 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,226 |
| 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 | 84,126 |
| Roman Emperors | 0 | - | 4.95 | 118,666 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,219 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,299 |
| Australian Capitals | 0 | - | 4.92 | 62,608 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,501 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,984 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,947 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,797 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,304 |
| European Geography By Letter - M | 0 | - | 4.61 | 129,058 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,899 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,696 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,072 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,403 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,030 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,664 |
| 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 | 99,660 |
| Regions of France | 0 | - | 4.78 | 119,488 |
| France Immigration by Country | 0 | - | 4.72 | 76,033 |
| Famous Germans | 0 | - | 4.50 | 54,694 |
| German Groups of Things | 0 | - | 4.46 | 38,331 |
| Germany True or False? | 0 | - | 4.61 | 48,573 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,566 |
| Olympian Gods Quiz | 0 | - | 4.96 | 497,074 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,654 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,901 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,089 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,086 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,006 |
| Asia Map Quiz | 0 | - | 4.99 | 908,182 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,940 |
| African East Coast | 0 | - | 4.96 | 95,188 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,059 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,955 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,447 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,337 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,319 |
| European Physical Geography | 0 | - | 4.26 | 33,385 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,812 |
| Country Codes of Europe | 0 | - | 3.46 | 13,661 |
| The Only European Country ... | 0 | - | 4.91 | 214,266 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,817 |
| 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 | 23,813 |
| France Multiple Choice | 0 | - | 4.38 | 40,650 |
| History of France | 0 | - | 4.59 | 56,267 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,399 |
| Ancient Greek Words | 0 | - | 4.92 | 110,839 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,682 |
| The Vikings! | 0 | - | 4.46 | 28,260 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,741 |
| 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 | 136,356 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,749 |
| 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 | 234,401 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,486 |
| Champions League Top 4 | 0 | - | 4.77 | 134,160 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 97,652 |
| Countries of Africa | 0 | - | 5.00 | 2,512,179 |
| Australia Map Quiz | 0 | - | 4.94 | 342,755 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,022 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,638 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,293 |
| 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 | 101,352 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,556 |
| 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 | 49,040 |
| 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 | 72,285 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,034 |
| The Mafia Quiz | 0 | - | 4.46 | 23,216 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 434,128 |
| History of The Netherlands | 0 | - | 4.46 | 17,337 |
| Canary Islands | 0 | - | 4.61 | 17,419 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,233 |
| British Spellings | 0 | - | 4.07 | 99,281 |
| British Groups of Things | 0 | - | 4.25 | 82,717 |
| British Acronyms | 0 | - | 4.39 | 45,652 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,970 |
| British Monopoly Board | 0 | - | 4.52 | 41,066 |
| Geography of Scotland | 0 | - | 4.63 | 21,503 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,933 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,508 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,441 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,818 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,677 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,414 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,608 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,333 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,724 |
| African Island Countries | 0 | - | 4.96 | 100,909 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,900 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,809 |
| Australian States and Territories | 0 | - | 4.96 | 141,058 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,055 |
| Australia True or False | 0 | - | 4.87 | 56,556 |
| Flags of North and South America | 0 | - | 4.99 | 368,302 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,216 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,276 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,391 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,212 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,680 |
| North America Map Quiz | 0 | - | 4.98 | 244,995 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,423 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,600 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,619 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,720 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,559 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,299 |
