| European Countries by First 2 Letters | 0 | - | 4.95 | 529,631 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,145 |
| Official European Union Languages | 0 | - | 4.97 | 238,547 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,884 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,275 |
| Celtic Nations | 0 | - | 4.69 | 46,951 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,994 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,840 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,387 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,385 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,600 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 171,955 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,363 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,017 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,499 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 356,125 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,705 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,236 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,154 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,634 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,004 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,305 |
| States of Germany | 0 | - | 4.96 | 152,649 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,055 |
| Regions of Italy | 0 | - | 4.92 | 75,916 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,188 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,976 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,221 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,187 |
| Champions League Winners | 0 | - | 4.92 | 1,006,995 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,605 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,656 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,709 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,007 |
| Slavic Languages | 0 | - | 4.68 | 54,376 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,621 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,470 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,317 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,862 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,160 |
| Departments of France | 0 | - | 4.93 | 54,151 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,551 |
| England or Wales? | 0 | - | 4.94 | 45,700 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,401 |
| Australian Capitals | 0 | - | 4.92 | 62,727 |
| Europe Map Quiz | 0 | - | 5.00 | 4,763,722 |
| Country Codes of Europe | 0 | - | 3.43 | 13,730 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,113 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,467 |
| History of Russia Quiz | 0 | - | 4.47 | 31,920 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,735 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,778 |
| Capitals of French Regions | 0 | - | 4.45 | 16,081 |
| Capitals of German States | 0 | - | 4.74 | 28,956 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,343 |
| History of Italy | 0 | - | 4.55 | 31,979 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,798 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,664 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,241 |
| Africa Map Quiz | 0 | - | 5.00 | 2,118,246 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,503 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,343 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,402 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,069 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,703 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,581 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,729 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,597 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,899 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,742 |
| European Geography By Letter - V | 0 | - | 4.43 | 93,046 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,485 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,281 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,949 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,230 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,239 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,648 |
| Regions of France | 0 | - | 4.72 | 120,827 |
| France Immigration by Country | 0 | - | 4.70 | 76,530 |
| Famous Germans | 0 | - | 4.50 | 55,304 |
| German Groups of Things | 0 | - | 4.46 | 38,481 |
| Germany True or False? | 0 | - | 4.61 | 48,812 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,033 |
| The Trojan War | 0 | - | 4.83 | 39,734 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,580 |
| Name that Greek Letter | 0 | - | 4.93 | 323,483 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,871 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,512 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,542 |
| Roman Emperors | 0 | - | 4.95 | 120,077 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,366 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,274 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,262 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,332 |
| Asia Map Quiz | 0 | - | 4.99 | 917,030 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,848 |
| African East Coast | 0 | - | 4.96 | 96,085 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,906 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,723 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,316 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,659 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,081 |
| European Physical Geography | 0 | - | 4.26 | 33,511 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,293 |
| The Only European Country ... | 0 | - | 4.91 | 216,701 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,176 |
| Geography of Russia | 0 | - | 4.57 | 21,532 |
| History of Austria | 0 | - | 4.70 | 17,863 |
| Presidents of France | 0 | - | 4.25 | 24,146 |
| Geography of the French Empire | 0 | - | 4.45 | 27,061 |
| The French Revolution | 0 | - | 4.47 | 23,940 |
| France Multiple Choice | 0 | - | 4.39 | 40,743 |
| The Vikings! | 0 | - | 4.46 | 28,344 |
| The Portuguese Empire | 0 | - | 4.58 | 12,066 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,048 |
| American to British Word Translation | 0 | - | 4.14 | 139,088 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,901 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,998 |
| Countries of Africa | 0 | - | 5.00 | 2,537,727 |
| Australia Map Quiz | 0 | - | 4.95 | 344,660 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,524 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,965 |
| History of France | 0 | - | 4.59 | 56,995 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,938 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,134 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,043 |
| Champions League Top 4 | 0 | - | 4.77 | 136,532 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,383,127 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,647 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,798 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,823 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,981 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,110 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,776 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,585 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,224 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,781 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,959 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,678 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,230 |
| European Geography A-Z | 0 | - | 4.29 | 49,276 |
| Famous French People | 0 | - | 4.06 | 35,602 |
| Word Chain - France | 0 | - | 4.38 | 42,782 |
| Ancient Greek Words | 0 | - | 4.93 | 111,630 |
| Italian Foods | 0 | - | 4.30 | 72,796 |
| The Mafia Quiz | 0 | - | 4.46 | 23,326 |
| History of The Netherlands | 0 | - | 4.46 | 17,437 |
| Canary Islands | 0 | - | 4.62 | 17,482 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,714 |
| British Spellings | 0 | - | 4.06 | 99,458 |
| British Groups of Things | 0 | - | 4.25 | 82,872 |
| British Acronyms | 0 | - | 4.40 | 45,801 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,036 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,818 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,669 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,320 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,742 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,980 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,503 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,020 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,600 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,267 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,278 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,550 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,091 |
| African Island Countries | 0 | - | 4.96 | 101,651 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,442 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,302 |
| Australian States and Territories | 0 | - | 4.96 | 142,003 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,293 |
| Australia Country Quiz | 0 | - | 4.43 | 69,597 |
| Australia True or False | 0 | - | 4.87 | 56,865 |
| Flags of North and South America | 0 | - | 4.99 | 373,176 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,620 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,243 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,798 |
| South America Map Quiz | 0 | - | 5.00 | 1,549,986 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,464 |
| North America Map Quiz | 0 | - | 4.98 | 248,595 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,740 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,655 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,538 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,171 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,888 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,523 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,900 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,688 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,224 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,767 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,171 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,260 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,308 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,211 |
| Slavic Countries | 0 | - | 4.96 | 111,683 |
| Austria... or Australia? | 0 | - | 4.68 | 104,361 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,486 |
| Geography of Germany | 0 | - | 4.35 | 17,188 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,001 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,914 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,338 |
