| European Countries by First 2 Letters | 0 | - | 4.95 | 529,194 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,747 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,063 |
| Official European Union Languages | 0 | - | 4.97 | 238,332 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,737 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,874 |
| Slavic Languages | 0 | - | 4.68 | 54,317 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,934 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,798 |
| History of Russia Quiz | 0 | - | 4.47 | 31,903 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,712 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,378 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,317 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,234 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,113 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,155 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,932 |
| Slavic Countries | 0 | - | 4.96 | 111,572 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,324 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,934 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,288 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,014 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,452 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,109 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,855 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,820 |
| Geography of Russia | 0 | - | 4.57 | 21,522 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,814 |
| States of Germany | 0 | - | 4.96 | 152,241 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,965 |
| Regions of Italy | 0 | - | 4.92 | 75,743 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,041 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,800 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,119 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,684 |
| Champions League Winners | 0 | - | 4.92 | 1,005,548 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,956 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,577 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,913 |
| Departments of France | 0 | - | 4.93 | 53,979 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,532 |
| England or Wales? | 0 | - | 4.94 | 45,643 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,140 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,585 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,650 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,604 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,774 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,591 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,443 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,396 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,769 |
| Name that Greek Letter | 0 | - | 4.93 | 323,276 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,033 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,970 |
| Word Chain - Russia | 0 | - | 4.33 | 15,741 |
| The Trojan War | 0 | - | 4.83 | 39,682 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,693 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,718 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,479 |
| Roman Emperors | 0 | - | 4.95 | 119,824 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,640 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,200 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,870 |
| Australian Capitals | 0 | - | 4.92 | 62,714 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,707 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,750 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,470 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,187 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,243 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,309 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,331 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,643 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,544 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,869 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,242 |
| Europe Map Quiz | 0 | - | 5.00 | 4,759,131 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,243 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,908 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,196 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,213 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,444 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,402 |
| Capitals of French Regions | 0 | - | 4.45 | 16,056 |
| Regions of France | 0 | - | 4.75 | 120,598 |
| France Immigration by Country | 0 | - | 4.70 | 76,462 |
| Famous Germans | 0 | - | 4.50 | 55,251 |
| German Groups of Things | 0 | - | 4.46 | 38,458 |
| Capitals of German States | 0 | - | 4.74 | 28,943 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,304 |
| Germany True or False? | 0 | - | 4.61 | 48,769 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,950 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,329 |
| Ancient Greek Words | 0 | - | 4.93 | 111,472 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,406 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,300 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,249 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,159 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,923 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,580 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,376 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,487 |
| European Physical Geography | 0 | - | 4.26 | 33,491 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,932 |
| History of Austria | 0 | - | 4.70 | 17,851 |
| Geography of the French Empire | 0 | - | 4.45 | 27,043 |
| The French Revolution | 0 | - | 4.46 | 23,922 |
| France Multiple Choice | 0 | - | 4.39 | 40,723 |
| History of France | 0 | - | 4.59 | 56,920 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,727 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,067 |
| The Vikings! | 0 | - | 4.46 | 28,334 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,093 |
| The Portuguese Empire | 0 | - | 4.58 | 12,057 |
| American to British Word Translation | 0 | - | 4.14 | 138,905 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,877 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,623 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,639 |
| Champions League Top 4 | 0 | - | 4.77 | 136,154 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,637 |
| Asia Map Quiz | 0 | - | 4.99 | 915,715 |
| Countries of Africa | 0 | - | 5.00 | 2,533,521 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,737 |
| African East Coast | 0 | - | 4.96 | 95,950 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,769 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,592 |
| Australia Map Quiz | 0 | - | 4.95 | 344,164 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,844 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,003 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,621 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,785 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,225 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,344 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,662 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,833 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,482 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,323 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,968 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,578 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,816 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,649 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,072 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,056 |
| European Geography A-Z | 0 | - | 4.29 | 49,232 |
| Country Codes of Europe | 0 | - | 3.43 | 13,702 |
| The Only European Country ... | 0 | - | 4.91 | 216,318 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,959 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,101 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,291 |
| Austria... or Australia? | 0 | - | 4.68 | 104,291 |
| Famous French People | 0 | - | 4.06 | 35,375 |
| Presidents of France | 0 | - | 4.25 | 24,073 |
| Word Chain - France | 0 | - | 4.38 | 42,764 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,966 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,896 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,696 |
| Italian Foods | 0 | - | 4.30 | 72,720 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,290 |
| The Mafia Quiz | 0 | - | 4.46 | 23,314 |
| History of The Netherlands | 0 | - | 4.46 | 17,426 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,019 |
| Canary Islands | 0 | - | 4.62 | 17,471 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,655 |
| British Spellings | 0 | - | 4.06 | 99,429 |
| British Groups of Things | 0 | - | 4.25 | 82,854 |
| British Acronyms | 0 | - | 4.40 | 45,781 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,028 |
| British Monopoly Board | 0 | - | 4.52 | 41,157 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,732 |
| Geography of Scotland | 0 | - | 4.63 | 21,608 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,835 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,029 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,936 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,329 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,829 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,505 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,139 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,188 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,352 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,856 |
| African Island Countries | 0 | - | 4.96 | 101,527 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,262 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,187 |
| Australian States and Territories | 0 | - | 4.96 | 141,822 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,266 |
| Australia True or False | 0 | - | 4.87 | 56,818 |
| Flags of North and South America | 0 | - | 4.99 | 372,532 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,568 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,159 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,569 |
| South America Map Quiz | 0 | - | 5.00 | 1,548,665 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,021,916 |
| North America Map Quiz | 0 | - | 4.98 | 248,161 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,692 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,952 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,721 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,091 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,837 |
