| England or Wales? | 0 | - | 4.94 | 45,486 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,194 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,744 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,641 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,293 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,986 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,846 |
| Official European Union Languages | 0 | - | 4.97 | 237,636 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,307 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,529 |
| Slavic Languages | 0 | - | 4.68 | 54,150 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,743 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,666 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,431 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,445 |
| Australia True or False | 0 | - | 4.87 | 56,670 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,093 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,276 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,431 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,737 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,502 |
| Champions League Winners | 0 | - | 4.92 | 1,000,590 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,614 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,584 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,673 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,321 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,265 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,850 |
| France Multiple Choice | 0 | - | 4.38 | 40,679 |
| States of Germany | 0 | - | 4.96 | 151,043 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,430 |
| Regions of Italy | 0 | - | 4.92 | 75,192 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 46,818 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,163 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,725 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,617 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,475 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,293 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,119 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,742 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,696 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,065 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,883 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,631 |
| Departments of France | 0 | - | 4.93 | 53,293 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,434 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,226 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,701 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,507 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,268 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,820 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,862 |
| French History Multiple Choice | 0 | - | 4.55 | 32,945 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,741 |
| The Trojan War | 0 | - | 4.83 | 39,559 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,541 |
| Name that Greek Letter | 0 | - | 4.93 | 322,523 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,145 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,520 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,274 |
| Roman Emperors | 0 | - | 4.95 | 119,226 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,347 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,101 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,565 |
| History of Russia Quiz | 0 | - | 4.49 | 31,842 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,477 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,353 |
| Ancient Greek Words | 0 | - | 4.93 | 111,089 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,047 |
| History of Italy | 0 | - | 4.55 | 31,895 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,563 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,091 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,018 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,122 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,611 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,363 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,672 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,122 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,099 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,979 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,438 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,313 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,025 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,804 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,438 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,599 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,472 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,126 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,770 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,077 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,118 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,796 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,232 |
| Capitals of French Regions | 0 | - | 4.45 | 16,017 |
| Regions of France | 0 | - | 4.77 | 119,944 |
| France Immigration by Country | 0 | - | 4.72 | 76,186 |
| Famous Germans | 0 | - | 4.50 | 54,824 |
| German Groups of Things | 0 | - | 4.46 | 38,380 |
| Capitals of German States | 0 | - | 4.74 | 28,891 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,198 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,716 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,874 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,113 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,832 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,053 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,153 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,820 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,356 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,460 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,141 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,493 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,480 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,289 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,426 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,847 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,094 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,713 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,672 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,356 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,084 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,426 |
| European Physical Geography | 0 | - | 4.26 | 33,421 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,520 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,648 |
| European Geography A-Z | 0 | - | 4.29 | 49,110 |
| Geography of Russia | 0 | - | 4.57 | 21,477 |
| History of Austria | 0 | - | 4.70 | 17,798 |
| Austria... or Australia? | 0 | - | 4.68 | 104,096 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| Word Chain - France | 0 | - | 4.38 | 42,672 |
| The French Revolution | 0 | - | 4.46 | 23,860 |
| History of France | 0 | - | 4.59 | 56,612 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,867 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,841 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,823 |
| Italian Foods | 0 | - | 4.31 | 72,443 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,139 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| Byzantine History | 0 | - | 4.91 | 28,701 |
| History of The Netherlands | 0 | - | 4.46 | 17,358 |
| The Vikings! | 0 | - | 4.46 | 28,285 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,850 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Canary Islands | 0 | - | 4.61 | 17,437 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,722 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,377 |
| American to British Word Translation | 0 | - | 4.13 | 138,248 |
| British Spellings | 0 | - | 4.06 | 99,352 |
| British Groups of Things | 0 | - | 4.25 | 82,776 |
| British Acronyms | 0 | - | 4.39 | 45,702 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,810 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,993 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,433 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,257 |
| Geography of Scotland | 0 | - | 4.63 | 21,545 |
| Champions League Top 4 | 0 | - | 4.77 | 134,923 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,867 |
| Asia Map Quiz | 0 | - | 4.99 | 910,835 |
| Pasta... or Composer? | 0 | - | 4.63 | 26,625 |
| Countries of Africa | 0 | - | 5.00 | 2,521,063 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,641 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,780 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,247 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,204 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,880 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,668 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,830 |
| African East Coast | 0 | - | 4.96 | 95,511 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,735 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,356 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,192 |
| African Island Countries | 0 | - | 4.96 | 101,144 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,613 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,970 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,190 |
| Australian States and Territories | 0 | - | 4.96 | 141,349 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,129 |
| Australia Map Quiz | 0 | - | 4.94 | 343,250 |
| Flags of North and South America | 0 | - | 4.99 | 370,081 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,397 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,507 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,792 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,452 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,149 |
| North America Map Quiz | 0 | - | 4.98 | 246,441 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,537 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,805 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,792 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,860 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,053 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,464 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,676 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,813 |
