| European Countries by First 2 Letters | 0 | - | 4.95 | 527,760 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,848 |
| Official European Union Languages | 0 | - | 4.97 | 237,652 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,309 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,541 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,744 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,667 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,097 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,290 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,449 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,195 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,741 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,294 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,476 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,618 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,370 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,619 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,589 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,684 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,330 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,291 |
| States of Germany | 0 | - | 4.96 | 151,070 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,471 |
| Regions of Italy | 0 | - | 4.92 | 75,200 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 47,547 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,170 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,726 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,151 |
| Champions League Winners | 0 | - | 4.92 | 1,000,653 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,509 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,280 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,831 |
| Slavic Languages | 0 | - | 4.68 | 54,151 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,521 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,353 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,764 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,710 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,074 |
| Departments of France | 0 | - | 4.93 | 53,299 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,437 |
| England or Wales? | 0 | - | 4.94 | 45,488 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,241 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,752 |
| Country Codes of Europe | 0 | - | 3.46 | 13,676 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,567 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,123 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,641 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,633 |
| Capitals of French Regions | 0 | - | 4.45 | 16,017 |
| Capitals of German States | 0 | - | 4.74 | 28,893 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,200 |
| History of Italy | 0 | - | 4.55 | 31,897 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,434 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,566 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,092 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,583 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,536 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,678 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,132 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,108 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,989 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,444 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,320 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,030 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,806 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,440 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,604 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,129 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,774 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,078 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,120 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,799 |
| Regions of France | 0 | - | 4.77 | 119,959 |
| France Immigration by Country | 0 | - | 4.72 | 76,196 |
| Famous Germans | 0 | - | 4.50 | 54,829 |
| German Groups of Things | 0 | - | 4.46 | 38,381 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,723 |
| The Trojan War | 0 | - | 4.83 | 39,564 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,586 |
| Name that Greek Letter | 0 | - | 4.93 | 322,530 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,156 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,880 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,282 |
| Roman Emperors | 0 | - | 4.95 | 119,233 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,059 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,154 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,823 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,886 |
| Asia Map Quiz | 0 | - | 4.99 | 910,902 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,256 |
| African East Coast | 0 | - | 4.96 | 95,516 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,357 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,195 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,070 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,465 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,922 |
| European Physical Geography | 0 | - | 4.26 | 33,423 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,305 |
| The Only European Country ... | 0 | - | 4.91 | 215,121 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,308 |
| Geography of Russia | 0 | - | 4.57 | 21,479 |
| History of Austria | 0 | - | 4.70 | 17,800 |
| Presidents of France | 0 | - | 4.25 | 23,981 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| The French Revolution | 0 | - | 4.46 | 23,861 |
| France Multiple Choice | 0 | - | 4.38 | 40,679 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| The Vikings! | 0 | - | 4.46 | 28,286 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,992 |
| American to British Word Translation | 0 | - | 4.13 | 138,273 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,812 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,184 |
| Countries of Africa | 0 | - | 5.00 | 2,521,284 |
| Australia Map Quiz | 0 | - | 4.94 | 343,259 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,213 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,854 |
| History of France | 0 | - | 4.59 | 56,623 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,396 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,865 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,437 |
| Champions League Top 4 | 0 | - | 4.77 | 134,944 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,090 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,386 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,376 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,435 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,855 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,103 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,722 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,675 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,359 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,089 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,428 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,522 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,650 |
| European Geography A-Z | 0 | - | 4.29 | 49,111 |
| Word Chain - France | 0 | - | 4.38 | 42,675 |
| Ancient Greek Words | 0 | - | 4.93 | 111,094 |
| Italian Foods | 0 | - | 4.31 | 72,447 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| History of The Netherlands | 0 | - | 4.46 | 17,359 |
| Canary Islands | 0 | - | 4.61 | 17,438 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,400 |
| British Spellings | 0 | - | 4.06 | 99,355 |
| British Groups of Things | 0 | - | 4.25 | 82,777 |
| British Acronyms | 0 | - | 4.39 | 45,702 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,993 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,462 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,036 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,130 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,646 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,828 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,217 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,891 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,678 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,834 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,746 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,208 |
| African Island Countries | 0 | - | 4.96 | 101,153 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,617 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,977 |
| Australian States and Territories | 0 | - | 4.96 | 141,355 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,137 |
| Australia Country Quiz | 0 | - | 4.43 | 69,432 |
| Australia True or False | 0 | - | 4.87 | 56,670 |
| Flags of North and South America | 0 | - | 4.99 | 370,111 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,399 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,511 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,808 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,518 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,235 |
| North America Map Quiz | 0 | - | 4.98 | 246,527 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,541 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,834 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,807 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,861 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,682 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,512 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,427 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,149 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,697 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,411 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,757 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,317 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,733 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,522 |
| Slavic Countries | 0 | - | 4.96 | 111,247 |
| Austria... or Australia? | 0 | - | 4.68 | 104,101 |
| Geography of Germany | 0 | - | 4.35 | 17,137 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,869 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,841 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,141 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,134 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,834 |
