| Europe Geography Decoder | 0 | - | 4.86 | 69,931 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,168 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,375 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,710 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,839 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,057 |
| Official European Union Languages | 0 | - | 4.97 | 238,312 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,728 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,853 |
| German Groups of Things | 0 | - | 4.46 | 38,456 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,927 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,521 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,897 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,591 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,794 |
| British Groups of Things | 0 | - | 4.25 | 82,852 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 449,976 |
| Celtic Nations | 0 | - | 4.69 | 46,923 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,400 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,311 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,214 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,064 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,324 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,930 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,230 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,186 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 179,384 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,240 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,903 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,192 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,211 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,311 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 321,922 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,021 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,013 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,447 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,104 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,804 |
| States of Germany | 0 | - | 4.96 | 152,207 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,956 |
| Regions of Italy | 0 | - | 4.92 | 75,724 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,030 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,783 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,111 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,682 |
| Champions League Winners | 0 | - | 4.92 | 1,005,439 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,759 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,068 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,285 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,099 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,223 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,320 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,582 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,644 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,649 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,741 |
| Slavic Languages | 0 | - | 4.68 | 54,311 |
| Departments of France | 0 | - | 4.93 | 53,971 |
| Word Chain - France | 0 | - | 4.38 | 42,762 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,589 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,532 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,440 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,028 |
| England or Wales? | 0 | - | 4.94 | 45,641 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,119 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,772 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 275,058 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,867 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,679 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,021 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,393 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,746 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,863 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,962 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,476 |
| History of Russia Quiz | 0 | - | 4.47 | 31,899 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,710 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 646,720 |
| Name that Greek Letter | 0 | - | 4.93 | 323,265 |
| History of Italy | 0 | - | 4.55 | 31,959 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,716 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,638 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,199 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,010 |
| Famous People from Africa | 0 | - | 4.45 | 10,945 |
| Word Chain - Africa | 0 | - | 4.47 | 31,599 |
| Four Letter African Geography | 0 | - | 4.67 | 19,233 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,314 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,881 |
| Europe Map Quiz | 0 | - | 5.00 | 4,758,810 |
| Word Chain - Russia | 0 | - | 4.33 | 15,741 |
| Capitals of French Regions | 0 | - | 4.45 | 16,056 |
| Capitals of German States | 0 | - | 4.74 | 28,942 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,304 |
| Word Chain - Germany | 0 | - | 4.31 | 22,574 |
| The Trojan War | 0 | - | 4.83 | 39,678 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,678 |
| Word Chain - Italy | 0 | - | 4.07 | 23,157 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,475 |
| Roman Emperors | 0 | - | 4.95 | 119,806 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,391 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,333 |
| Name a Valid English City | 0 | - | 4.19 | 16,712 |
| Africa Map Quiz | 0 | - | 5.00 | 2,116,214 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,953 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,380 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,138 |
| Australian Capitals | 0 | - | 4.92 | 62,713 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,910 |
| European Geography By Letter - A | 0 | - | 4.52 | 145,676 |
| European Geography By Letter - B #1 | 0 | - | 4.68 | 112,746 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,467 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,182 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,239 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,299 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,329 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,637 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,541 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,862 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,235 |
| European Geography By Letter - S #1 | 0 | - | 4.54 | 100,440 |
| Regions of France | 0 | - | 4.75 | 120,584 |
| France Immigration by Country | 0 | - | 4.70 | 76,454 |
| Famous Germans | 0 | - | 4.50 | 55,245 |
| Germany True or False? | 0 | - | 4.61 | 48,766 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,942 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,273 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,397 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,299 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,247 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,153 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,447,551 |
| Asia Map Quiz | 0 | - | 4.99 | 915,621 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,495 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,533 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,238 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,261 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,727 |
| African East Coast | 0 | - | 4.96 | 95,941 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,754 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,576 |
| Word Chain - Australia | 0 | - | 4.38 | 38,129 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,983 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,619 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,754 |
| European Physical Geography | 0 | - | 4.26 | 33,490 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,031 |
| Country Codes of Europe | 0 | - | 3.43 | 13,702 |
| The Only European Country ... | 0 | - | 4.91 | 216,285 |
| Word Scramble - European Cities | 0 | - | 3.83 | 18,900 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,942 |
| Geography of Russia | 0 | - | 4.57 | 21,520 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,929 |
| History of Austria | 0 | - | 4.70 | 17,850 |
| Presidents of France | 0 | - | 4.25 | 24,067 |
| Geography of the French Empire | 0 | - | 4.45 | 27,042 |
| The French Revolution | 0 | - | 4.46 | 23,922 |
| France Multiple Choice | 0 | - | 4.39 | 40,723 |
| History of France | 0 | - | 4.59 | 56,917 |
| Ancient Greek Words | 0 | - | 4.93 | 111,463 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,061 |
| The Vikings! | 0 | - | 4.46 | 28,334 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,088 |
| The Portuguese Empire | 0 | - | 4.58 | 12,057 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,019 |
| American to British Word Translation | 0 | - | 4.14 | 138,899 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,876 |
| United Kingdom A-Z | 0 | - | 4.51 | 87,620 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,635 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,910 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,569 |
| Champions League Top 4 | 0 | - | 4.77 | 136,124 |
| Word Chain - Asia | 0 | - | 4.34 | 29,313 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,822 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,618,388 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 165,398 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,064 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,340 |
| Famous Duos #2 | 0 | - | 4.21 | 117,020 |
| Famous Duos Quiz #1 | 0 | - | 4.15 | 84,041 |
| MLB Baseball Groups of Things | 0 | - | 4.09 | 18,539 |
| Random Symbol to Element | 0 | - | 4.88 | 92,984 |
| Name a Valid World City | 0 | - | 4.83 | 71,065 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,378 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,422 |
| Countries of Africa | 0 | - | 5.00 | 2,533,139 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,046 |
| Australia Map Quiz | 0 | - | 4.95 | 344,144 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,736 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,325 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,565 |
| Word Chain - South America | 0 | - | 4.51 | 23,888 |
| United States Map Quiz | 0 | - | 4.98 | 4,155,539 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 746,637 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,088 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,207 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,340 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,659 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,831 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,478 |
