| European Countries by First 2 Letters | 0 | - | 4.95 | 531,085 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,436 |
| Official European Union Languages | 0 | - | 4.97 | 239,159 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,269 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,641 |
| Celtic Nations | 0 | - | 4.69 | 47,026 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,165 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,948 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,456 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,755 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,745 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 174,043 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,542 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,263 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,648 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,047 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,775 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,239 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,495 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,583 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,500 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,352 |
| States of Germany | 0 | - | 4.95 | 153,636 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,386 |
| Regions of Italy | 0 | - | 4.92 | 76,458 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,531 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,734 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,502 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,968 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,802 |
| Champions League Winners | 0 | - | 4.92 | 1,011,301 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,673 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,682 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,980 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,921 |
| Slavic Languages | 0 | - | 4.68 | 54,535 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,686 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,545 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,615 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,795 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,044 |
| Departments of France | 0 | - | 4.93 | 54,652 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,649 |
| England or Wales? | 0 | - | 4.94 | 45,841 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,298 |
| Australian Capitals | 0 | - | 4.92 | 62,780 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,421 |
| Country Codes of Europe | 0 | - | 3.43 | 13,765 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,489 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,700 |
| History of Russia Quiz | 0 | - | 4.47 | 31,973 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,802 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,945 |
| Capitals of French Regions | 0 | - | 4.45 | 16,129 |
| Capitals of German States | 0 | - | 4.74 | 29,017 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,434 |
| History of Italy | 0 | - | 4.55 | 32,090 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,076 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,754 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,334 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,374 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,124 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,528 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,908 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,453 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,121 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,517 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,299 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,118 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,369 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,957 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,402 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,057 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,349 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,323 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,978 |
| Regions of France | 0 | - | 4.70 | 121,475 |
| France Immigration by Country | 0 | - | 4.70 | 76,745 |
| Famous Germans | 0 | - | 4.50 | 55,589 |
| German Groups of Things | 0 | - | 4.46 | 38,560 |
| Germany True or False? | 0 | - | 4.61 | 48,926 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,232 |
| The Trojan War | 0 | - | 4.83 | 39,872 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,776 |
| Name that Greek Letter | 0 | - | 4.93 | 324,399 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,455 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,935 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,226 |
| Roman Emperors | 0 | - | 4.95 | 120,618 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,568 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,368 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,543 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,277 |
| Asia Map Quiz | 0 | - | 4.99 | 921,260 |
| Africa Map Quiz | 0 | - | 5.00 | 2,123,552 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,062 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,082 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,788 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,927 |
| European Physical Geography | 0 | - | 4.26 | 33,559 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 116,286 |
| The Only European Country ... | 0 | - | 4.91 | 217,846 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,879 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,350 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| History of Austria | 0 | - | 4.70 | 17,928 |
| Presidents of France | 0 | - | 4.25 | 24,250 |
| Geography of the French Empire | 0 | - | 4.45 | 27,177 |
| The French Revolution | 0 | - | 4.47 | 24,083 |
| France Multiple Choice | 0 | - | 4.39 | 40,789 |
| The Vikings! | 0 | - | 4.46 | 28,379 |
| The Portuguese Empire | 0 | - | 4.58 | 12,088 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,086 |
| American to British Word Translation | 0 | - | 4.14 | 139,425 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,977 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,523 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,384 |
| African East Coast | 0 | - | 4.96 | 96,416 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,281 |
| Australia Map Quiz | 0 | - | 4.95 | 345,473 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,385 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,041 |
| History of France | 0 | - | 4.61 | 57,366 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,364 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,255 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,214 |
| Champions League Top 4 | 0 | - | 4.77 | 137,696 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,466 |
| Countries of Africa | 0 | - | 5.00 | 2,548,538 |
| United States Map Quiz | 0 | - | 4.98 | 4,165,320 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,364 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,708 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,562 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,248 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,990 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,615 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,097 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,224 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,784 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,501 |
| European Geography A-Z | 0 | - | 4.29 | 49,394 |
| Famous French People | 0 | - | 4.07 | 35,933 |
| Word Chain - France | 0 | - | 4.38 | 42,871 |
| Ancient Greek Words | 0 | - | 4.93 | 112,077 |
| Italian Foods | 0 | - | 4.30 | 73,031 |
| The Mafia Quiz | 0 | - | 4.46 | 23,395 |
| History of The Netherlands | 0 | - | 4.46 | 17,503 |
| Canary Islands | 0 | - | 4.62 | 17,502 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,879 |
| British Spellings | 0 | - | 4.06 | 99,532 |
| British Groups of Things | 0 | - | 4.25 | 82,942 |
| British Acronyms | 0 | - | 4.40 | 45,879 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,068 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,001 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,746 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,436 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,220 |
| 10 African Countries with the Most Tourists | 0 | - | 4.39 | 60,833 |
| Australian States and Territories | 0 | - | 4.96 | 142,391 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,399 |
| Australia Country Quiz | 0 | - | 4.43 | 69,711 |
| Australia True or False | 0 | - | 4.87 | 57,007 |
| Flags of North and South America | 0 | - | 4.99 | 374,985 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,790 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,524 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,247 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,670 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,663 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,027,203 |
| North America Map Quiz | 0 | - | 4.98 | 249,916 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,845 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,360 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,345 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,381 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,012 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,898 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,332,033 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,117 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,667 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,777 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,486 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,841 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,744 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,521 |
| Slavic Countries | 0 | - | 4.96 | 112,024 |
| Austria... or Australia? | 0 | - | 4.68 | 104,583 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,523 |
| Geography of Germany | 0 | - | 4.35 | 17,221 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,127 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,976 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,487 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,489 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,337 |
| History of Spain | 0 | - | 4.23 | 21,133 |
| Languages of Spain | 0 | - | 4.36 | 23,371 |
| British to American Word Translation | 0 | - | 3.74 | 255,217 |
| British Foods by Description | 0 | - | 3.94 | 48,352 |
| British and American Word Differences | 0 | - | 2.63 | 46,908 |
| Counties of England | 0 | - | 4.97 | 800,049 |
| British Monopoly Board | 0 | - | 4.52 | 41,211 |
