| European Countries by First 2 Letters | 0 | - | 4.95 | 529,551 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,411 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,128 |
| Official European Union Languages | 0 | - | 4.97 | 238,501 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,851 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,199 |
| Slavic Languages | 0 | - | 4.68 | 54,362 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,987 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,833 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,385 |
| Celtic Nations | 0 | - | 4.69 | 46,945 |
| History of Russia Quiz | 0 | - | 4.47 | 31,918 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,729 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,371 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,509 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,854 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,284 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,192 |
| Slavic Countries | 0 | - | 4.96 | 111,660 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,355 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,008 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,978 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,128 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,491 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,565 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,985 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,159 |
| Geography of Russia | 0 | - | 4.57 | 21,528 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,902 |
| States of Germany | 0 | - | 4.96 | 152,584 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,035 |
| Regions of Italy | 0 | - | 4.92 | 75,868 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,162 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,941 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,207 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,700 |
| Champions League Winners | 0 | - | 4.92 | 1,006,735 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,603 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,656 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,701 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,969 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,260 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,826 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,131 |
| Departments of France | 0 | - | 4.93 | 54,107 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,613 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,546 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,465 |
| England or Wales? | 0 | - | 4.94 | 45,689 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,350 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,214 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,451 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,769 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 279,148 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,085 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,429 |
| Name that Greek Letter | 0 | - | 4.93 | 323,447 |
| History of Italy | 0 | - | 4.55 | 31,975 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,783 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,661 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,237 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,976 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,435 |
| Word Chain - Russia | 0 | - | 4.33 | 15,751 |
| Capitals of French Regions | 0 | - | 4.45 | 16,073 |
| Capitals of German States | 0 | - | 4.74 | 28,955 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,333 |
| The Trojan War | 0 | - | 4.83 | 39,728 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,843 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,534 |
| Roman Emperors | 0 | - | 4.95 | 120,047 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,866 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,304 |
| Australian Capitals | 0 | - | 4.92 | 62,722 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,264 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 119,015 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,988 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,633 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,531 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,672 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,555 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,862 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,708 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,018 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,447 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,274 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,939 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,224 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,234 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,613 |
| Regions of France | 0 | - | 4.72 | 120,788 |
| France Immigration by Country | 0 | - | 4.70 | 76,519 |
| Famous Germans | 0 | - | 4.50 | 55,294 |
| German Groups of Things | 0 | - | 4.46 | 38,479 |
| Germany True or False? | 0 | - | 4.61 | 48,803 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,016 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,834 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,498 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,356 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,266 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,247 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,230 |
| Asia Map Quiz | 0 | - | 4.99 | 916,756 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,827 |
| African East Coast | 0 | - | 4.96 | 96,066 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,884 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,688 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,254 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,651 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,030 |
| European Physical Geography | 0 | - | 4.26 | 33,509 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,247 |
| Country Codes of Europe | 0 | - | 3.43 | 13,725 |
| The Only European Country ... | 0 | - | 4.91 | 216,624 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,130 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,147 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,962 |
| History of Austria | 0 | - | 4.70 | 17,861 |
| Presidents of France | 0 | - | 4.25 | 24,138 |
| Geography of the French Empire | 0 | - | 4.45 | 27,060 |
| The French Revolution | 0 | - | 4.47 | 23,933 |
| France Multiple Choice | 0 | - | 4.39 | 40,741 |
| History of France | 0 | - | 4.59 | 56,979 |
| Ancient Greek Words | 0 | - | 4.93 | 111,599 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,133 |
| The Vikings! | 0 | - | 4.46 | 28,343 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,127 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,043 |
| American to British Word Translation | 0 | - | 4.14 | 139,057 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,894 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,035 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,666 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,271 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,716 |
| Champions League Top 4 | 0 | - | 4.77 | 136,456 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,972 |
| Countries of Africa | 0 | - | 5.00 | 2,537,000 |
| Australia Map Quiz | 0 | - | 4.95 | 344,612 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,431 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,460 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,694 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,934 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,070 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,735 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,549 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,189 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,751 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,934 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,674 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,197 |
| European Geography A-Z | 0 | - | 4.29 | 49,268 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,304 |
| Austria... or Australia? | 0 | - | 4.68 | 104,348 |
| Famous French People | 0 | - | 4.06 | 35,580 |
| Word Chain - France | 0 | - | 4.38 | 42,779 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,995 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,913 |
| Italian Foods | 0 | - | 4.30 | 72,784 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,330 |
| The Mafia Quiz | 0 | - | 4.46 | 23,321 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,111 |
| History of The Netherlands | 0 | - | 4.46 | 17,435 |
| Canary Islands | 0 | - | 4.62 | 17,481 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,703 |
| British Spellings | 0 | - | 4.06 | 99,451 |
| British Groups of Things | 0 | - | 4.25 | 82,865 |
| British Acronyms | 0 | - | 4.40 | 45,799 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,035 |
| British Monopoly Board | 0 | - | 4.52 | 41,168 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,783 |
| Geography of Scotland | 0 | - | 4.63 | 21,616 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,975 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,971 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,308 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,982 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,577 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,235 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,263 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,506 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,046 |
| African Island Countries | 0 | - | 4.96 | 101,633 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,412 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,270 |
| Australian States and Territories | 0 | - | 4.96 | 141,970 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,283 |
| Australia True or False | 0 | - | 4.87 | 56,856 |
| Flags of North and South America | 0 | - | 4.99 | 373,094 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,608 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,225 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,758 |
| South America Map Quiz | 0 | - | 5.00 | 1,549,744 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,226 |
| North America Map Quiz | 0 | - | 4.98 | 248,509 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,732 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,529 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,412 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,159 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,882 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,147 |
