| European Countries by First 2 Letters | 0 | - | 4.95 | 530,795 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,820 |
| History of Russia Quiz | 0 | - | 4.47 | 31,960 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,369 |
| Official European Union Languages | 0 | - | 4.97 | 239,001 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,186 |
| England or Wales? | 0 | - | 4.94 | 45,817 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,334 |
| Geography of Russia | 0 | - | 4.57 | 21,557 |
| Slavic Languages | 0 | - | 4.68 | 54,493 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,131 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,927 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,436 |
| Celtic Nations | 0 | - | 4.69 | 47,006 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,647 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,563 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,508 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,640 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,462 |
| Slavic Countries | 0 | - | 4.96 | 111,949 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,500 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,227 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,478 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,735 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,001 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,436 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,600 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,233 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,388 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,171 |
| Word Chain - Russia | 0 | - | 4.33 | 15,773 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,028 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,147 |
| States of Germany | 0 | - | 4.95 | 153,373 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,321 |
| Regions of Italy | 0 | - | 4.92 | 76,322 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,472 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,510 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,445 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,763 |
| Champions League Winners | 0 | - | 4.92 | 1,010,426 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,106 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,525 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,803 |
| Departments of France | 0 | - | 4.93 | 54,538 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,625 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,122 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,660 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,928 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,736 |
| Austria... or Australia? | 0 | - | 4.68 | 104,527 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,676 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,520 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,667 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,327 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,888 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,298 |
| Name that Greek Letter | 0 | - | 4.93 | 324,250 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,452 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,399 |
| Famous Russians | 0 | - | 4.16 | 23,874 |
| Russian Inventions | 0 | - | 4.39 | 12,984 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,397 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,236 |
| The Trojan War | 0 | - | 4.83 | 39,814 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,314 |
| History of Italy | 0 | - | 4.55 | 32,064 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,001 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,670 |
| Roman Emperors | 0 | - | 4.95 | 120,452 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,730 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,775 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,670 |
| Australian Capitals | 0 | - | 4.92 | 62,764 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,040 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,437 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,832 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,385 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,049 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,390 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,239 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,053 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,315 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,884 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,045 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,372 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,033 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,329 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,307 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,925 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,562 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Regions of France | 0 | - | 4.70 | 121,320 |
| France Immigration by Country | 0 | - | 4.70 | 76,704 |
| Famous Germans | 0 | - | 4.50 | 55,553 |
| German Groups of Things | 0 | - | 4.46 | 38,531 |
| Capitals of German States | 0 | - | 4.74 | 28,993 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,412 |
| Germany True or False? | 0 | - | 4.61 | 48,907 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,170 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,071 |
| Ancient Greek Words | 0 | - | 4.93 | 111,973 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,870 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,521 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,356 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,480 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,498 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,199 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,153 |
| Oceania Map Quiz | 0 | - | 4.98 | 654,772 |
| European Physical Geography | 0 | - | 4.26 | 33,543 |
| History of Austria | 0 | - | 4.70 | 17,916 |
| Geography of the French Empire | 0 | - | 4.45 | 27,161 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| France Multiple Choice | 0 | - | 4.39 | 40,776 |
| History of France | 0 | - | 4.61 | 57,312 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,229 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,297 |
| The Vikings! | 0 | - | 4.46 | 28,372 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,226 |
| The Portuguese Empire | 0 | - | 4.58 | 12,086 |
| American to British Word Translation | 0 | - | 4.14 | 139,354 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,961 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,183 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,439 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,385 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,733 |
| Champions League Top 4 | 0 | - | 4.77 | 137,427 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,449,901 |
| Asia Map Quiz | 0 | - | 4.99 | 920,201 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,477 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,007 |
| Australia Map Quiz | 0 | - | 4.95 | 345,301 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,226 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,900 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,754 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,696 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,184 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,303 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,654 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,500 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,190 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,928 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,558 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,040 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,172 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,760 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,464 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,795 |
| European Geography A-Z | 0 | - | 4.29 | 49,374 |
| Country Codes of Europe | 0 | - | 3.43 | 13,762 |
| The Only European Country ... | 0 | - | 4.91 | 217,566 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,693 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,323 |
| Famous French People | 0 | - | 4.07 | 35,887 |
| Presidents of France | 0 | - | 4.25 | 24,219 |
| Word Chain - France | 0 | - | 4.38 | 42,855 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,091 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,954 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,853 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,838 |
| Italian Foods | 0 | - | 4.30 | 72,981 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,438 |
| The Mafia Quiz | 0 | - | 4.46 | 23,382 |
| History of The Netherlands | 0 | - | 4.46 | 17,492 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,071 |
| Canary Islands | 0 | - | 4.62 | 17,498 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,844 |
| British Spellings | 0 | - | 4.06 | 99,516 |
| British Groups of Things | 0 | - | 4.25 | 82,917 |
| British Acronyms | 0 | - | 4.40 | 45,861 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,059 |
| British Monopoly Board | 0 | - | 4.52 | 41,202 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,971 |
| Geography of Scotland | 0 | - | 4.63 | 21,670 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,374 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,096 |
| Countries of Africa | 0 | - | 5.00 | 2,546,497 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,151 |
| African East Coast | 0 | - | 4.96 | 96,333 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,199 |
| Australian States and Territories | 0 | - | 4.96 | 142,300 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,376 |
| Australia True or False | 0 | - | 4.87 | 56,966 |
| Flags of North and South America | 0 | - | 4.99 | 374,583 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,736 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,437 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,168 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,139 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,649 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,736 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,384 |
| North America Map Quiz | 0 | - | 4.98 | 249,621 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,819 |
| Canada Provinces and Territories | 0 | - | 5.00 | 343,936 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,014 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,327 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,981 |
