| European Countries by First 2 Letters | 0 | - | 4.95 | 530,289 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,326 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,274 |
| Official European Union Languages | 0 | - | 4.97 | 238,814 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,062 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,777 |
| Slavic Languages | 0 | - | 4.68 | 54,440 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,077 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,894 |
| History of Russia Quiz | 0 | - | 4.47 | 31,943 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,767 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,414 |
| Celtic Nations | 0 | - | 4.69 | 46,977 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,495 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,079 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,616 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,492 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,344 |
| Slavic Countries | 0 | - | 4.96 | 111,824 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,432 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,151 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,659 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,320 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 80,681 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,206 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,828 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,034 |
| States of Germany | 0 | - | 4.95 | 153,004 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,220 |
| Regions of Italy | 0 | - | 4.92 | 76,164 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,363 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,252 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,367 |
| Champions League Winners | 0 | - | 4.91 | 1,009,086 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,552 |
| Geography of Russia | 0 | - | 4.57 | 21,550 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,996 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,734 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,754 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,234 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,482 |
| Austria... or Australia? | 0 | - | 4.68 | 104,465 |
| Departments of France | 0 | - | 4.93 | 54,377 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,599 |
| England or Wales? | 0 | - | 4.94 | 45,771 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,853 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,631 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,669 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,825 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,452 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,583 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,836 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,490 |
| Name that Greek Letter | 0 | - | 4.93 | 324,077 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,697 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,652 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,507 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,505 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,268 |
| Word Chain - Russia | 0 | - | 4.33 | 15,770 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,325 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,153 |
| The Trojan War | 0 | - | 4.83 | 39,779 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,101 |
| History of Italy | 0 | - | 4.55 | 32,039 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,910 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,621 |
| Roman Emperors | 0 | - | 4.95 | 120,305 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,711 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,793 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,286 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,684 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,531 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,590 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,042 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,302 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,906 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,721 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,954 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,710 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,011 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,840 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,131 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,616 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,805 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,333 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,996 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,279 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,279 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,732 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,526 |
| Capitals of French Regions | 0 | - | 4.45 | 16,096 |
| Regions of France | 0 | - | 4.72 | 121,116 |
| France Immigration by Country | 0 | - | 4.70 | 76,643 |
| Famous Germans | 0 | - | 4.50 | 55,480 |
| German Groups of Things | 0 | - | 4.46 | 38,505 |
| Capitals of German States | 0 | - | 4.74 | 28,979 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,382 |
| Germany True or False? | 0 | - | 4.61 | 48,863 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,115 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,612 |
| Ancient Greek Words | 0 | - | 4.93 | 111,830 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,703 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,466 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,323 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,384 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,782 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,966 |
| Africa Map Quiz | 0 | - | 5.00 | 2,120,798 |
| Which African Country? | 0 | - | 4.58 | 36,390 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,488 |
| Australian Capitals | 0 | - | 4.92 | 62,742 |
| European Physical Geography | 0 | - | 4.26 | 33,536 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,444 |
| History of Austria | 0 | - | 4.70 | 17,893 |
| Geography of the French Empire | 0 | - | 4.45 | 27,148 |
| The French Revolution | 0 | - | 4.47 | 24,046 |
| France Multiple Choice | 0 | - | 4.39 | 40,761 |
| History of France | 0 | - | 4.59 | 57,221 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,720 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,236 |
| The Vikings! | 0 | - | 4.46 | 28,366 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,195 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| American to British Word Translation | 0 | - | 4.14 | 139,244 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,933 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,122 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,404 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,701 |
| Champions League Top 4 | 0 | - | 4.77 | 137,087 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,328 |
| Asia Map Quiz | 0 | - | 4.99 | 918,743 |
| Which Asian Country? | 0 | - | 4.64 | 57,625 |
| Countries of Africa | 0 | - | 5.00 | 2,542,826 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,036 |
| African East Coast | 0 | - | 4.96 | 96,211 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,078 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,843 |
| Australia Map Quiz | 0 | - | 4.95 | 344,960 |
| United States Map Quiz | 0 | - | 4.98 | 4,162,394 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,671 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,718 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,419 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,877 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,977 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,354 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,224 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,911 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,684 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,323 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,856 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,018 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,730 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,297 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,580 |
| European Geography A-Z | 0 | - | 4.29 | 49,346 |
| Country Codes of Europe | 0 | - | 3.43 | 13,741 |
| The Only European Country ... | 0 | - | 4.91 | 217,216 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,459 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,259 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,322 |
| Famous French People | 0 | - | 4.07 | 35,787 |
| Presidents of France | 0 | - | 4.25 | 24,190 |
| Word Chain - France | 0 | - | 4.38 | 42,821 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,057 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,943 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,395 |
| Italian Foods | 0 | - | 4.30 | 72,895 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,394 |
| The Mafia Quiz | 0 | - | 4.46 | 23,363 |
| History of The Netherlands | 0 | - | 4.46 | 17,469 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,063 |
| Canary Islands | 0 | - | 4.62 | 17,489 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 67,940 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,796 |
| British Spellings | 0 | - | 4.06 | 99,493 |
| British Groups of Things | 0 | - | 4.25 | 82,900 |
| British Acronyms | 0 | - | 4.40 | 45,832 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,051 |
| British Monopoly Board | 0 | - | 4.52 | 41,186 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,913 |
| Geography of Scotland | 0 | - | 4.63 | 21,645 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,179 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,384,472 |
| China Multiple Choice | 0 | - | 4.50 | 37,312 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 99,057 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,657 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,245 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,744 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,412 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,397 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,750 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,319 |
| African Island Countries | 0 | - | 4.96 | 101,807 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,716 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,388 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,493 |
| Australian States and Territories | 0 | - | 4.96 | 142,178 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,350 |
| Australia True or False | 0 | - | 4.87 | 56,929 |
