| Count to 10 in Europe: Pro | 0 | - | 4.85 | 66,582 |
| Official European Union Languages | 0 | - | 4.98 | 231,560 |
| European Countries in their Native Language | 0 | - | 4.99 | 153,524 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 516,323 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 199,722 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 415,914 |
| Slavic Languages | 0 | - | 4.64 | 52,666 |
| Europe Geography Decoder | 0 | - | 4.86 | 68,067 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.79 | 41,363 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,759 |
| Celtic Nations | 0 | - | 4.77 | 46,319 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 22,715 |
| Top European Languages on a Map | 0 | - | 4.77 | 127,977 |
| Top African Languages on a Map | 0 | - | 4.92 | 67,971 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 112,325 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 52,882 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.85 | 85,208 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 302,417 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 154,603 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,894 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 68,142 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 54,170 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 334,669 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 57,082 |
| States of the German Confederation in 1848 | 0 | - | 4.88 | 30,163 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,166 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,941 |
| Catholic Countries in Europe | 0 | - | 4.83 | 91,648 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 67,097 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 76,266 |
| Federal Subjects of Russia | 0 | - | 4.95 | 135,977 |
| States of Germany | 0 | - | 4.95 | 142,823 |
| Germany Immigration by Country | 0 | - | 4.86 | 77,449 |
| Counties of Ireland | 0 | - | 4.91 | 180,764 |
| Regions of Italy | 0 | - | 4.91 | 70,633 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 36,088 |
| Regions of Spain Quiz | 0 | - | 4.89 | 107,683 |
| Cantons of Switzerland | 0 | - | 4.97 | 47,157 |
| Champions League Winners | 0 | - | 4.91 | 968,748 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 261,865 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,816 |
| Word Scramble - European Countries | 0 | - | 4.73 | 137,483 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 107,701 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 223,272 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 267,663 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 159,373 |
| Departments of France | 0 | - | 4.91 | 47,852 |
| Capitals of Italian Regions | 0 | - | 4.62 | 35,940 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,710 |
| Spanish Immigration by Country | 0 | - | 4.61 | 54,575 |
| England or Wales? | 0 | - | 4.94 | 44,201 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 124,044 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 271,725 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 31,886 |
| Languages of Spain | 0 | - | 4.36 | 22,732 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 207,913 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 62,770 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,020 |
| French Geography Quiz #1 | 0 | - | 4.88 | 33,682 |
| Italy Multiple Choice | 0 | - | 4.74 | 101,134 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,932 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,507 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 364,721 |
| Top World Languages | 0 | - | 4.92 | 785,673 |
| Australian Capitals | 0 | - | 4.92 | 62,200 |
| Europe Map Quiz | 0 | - | 5.00 | 4,630,576 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 25,614 |
| Four Letter European Geography #2 | 0 | - | 4.55 | 18,389 |
| Capitals of French Regions | 0 | - | 4.43 | 15,711 |
| Capitals of German States | 0 | - | 4.70 | 28,406 |
| Chancellors of Germany, 1949–present | 0 | - | 4.58 | 22,451 |
| The Trojan War | 0 | - | 4.81 | 38,428 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 623,964 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 105,429 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 82,319 |
| Roman Emperors | 0 | - | 4.96 | 112,024 |
| Countries by Official Language | 0 | - | 4.95 | 187,190 |
| Places in their Native Language #1 | 0 | - | 4.85 | 234,688 |
| Places in their Native Language #2 | 0 | - | 4.87 | 120,740 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 286,401 |
| Countries in their Native Language | 0 | - | 4.98 | 191,461 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 125,098 |
| Africa Map Quiz | 0 | - | 5.00 | 2,065,393 |
| Oceania Map Quiz | 0 | - | 4.98 | 616,546 |
| European Geography By Letter - A | 0 | - | 4.61 | 130,240 |
| European Geography By Letter - B #1 | 0 | - | 4.70 | 108,747 |
| European Geography By Letter - C | 0 | - | 4.46 | 109,866 |
| European Geography By Letter - D | 0 | - | 4.52 | 104,570 |
| European Geography By Letter - L | 0 | - | 4.52 | 109,965 |
| European Geography By Letter - M | 0 | - | 4.53 | 119,379 |
| European Geography By Letter - P | 0 | - | 4.78 | 94,370 |
| European Geography By Letter - N | 0 | - | 4.43 | 97,807 |
| European Geography By Letter - R | 0 | - | 4.41 | 90,996 |
| European Geography By Letter - V | 0 | - | 4.44 | 90,546 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,120 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 70,665 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,138 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,253 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 97,830 |
| Country Codes of Europe | 0 | - | 3.44 | 13,429 |
| Regions of France | 0 | - | 4.74 | 114,428 |
| France Immigration by Country | 0 | - | 4.73 | 74,431 |
| Famous Germans | 0 | - | 4.44 | 41,403 |
| German Groups of Things | 0 | - | 4.46 | 37,802 |
| Germany True or False? | 0 | - | 4.63 | 47,678 |
| Largest Islands of Greece | 0 | - | 4.59 | 45,698 |
| Famous Italians by Clue | 0 | - | 4.45 | 85,279 |
| Provinces of the Netherlands | 0 | - | 4.77 | 38,634 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,566 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 99,828 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,416,972 |
| Asia Map Quiz | 0 | - | 4.99 | 876,051 |
| Official Languages of South Africa | 0 | - | 4.56 | 25,766 |
| European Physical Geography | 0 | - | 4.25 | 33,048 |
| History of Russia Quiz | 0 | - | 4.49 | 31,426 |
| Geography of Russia | 0 | - | 4.56 | 21,104 |
| History of Austria | 0 | - | 4.69 | 17,397 |
| Geography of the French Empire | 0 | - | 4.51 | 26,471 |
| The French Revolution | 0 | - | 4.46 | 23,158 |
| France Multiple Choice | 0 | - | 4.37 | 40,222 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.42 | 23,051 |
| Olympian Gods Quiz | 0 | - | 4.96 | 475,984 |
| Name that Greek Letter | 0 | - | 4.93 | 314,867 |
| History of Italy | 0 | - | 4.54 | 31,397 |
| The Vikings! | 0 | - | 4.46 | 27,977 |
| The Portuguese Empire | 0 | - | 4.54 | 11,820 |
| American to British Word Translation | 0 | - | 4.01 | 115,534 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 22,578 |
| Countries of Africa | 0 | - | 5.00 | 2,418,502 |
| African East Coast | 0 | - | 4.96 | 92,338 |
| Western Africa Map Quiz | 0 | - | 4.97 | 70,138 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 47,423 |
| Australia Map Quiz | 0 | - | 4.94 | 337,091 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 203,966 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 90,520 |
| Countries That Use the Euro | 0 | - | 4.97 | 93,794 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 356,045 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 108,277 |
| The Only European Country ... | 0 | - | 4.92 | 204,109 |
| European Countries NOT in NATO | 0 | - | 4.88 | 54,386 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,210 |
| Presidents of France | 0 | - | 4.25 | 22,903 |
| History of France Quiz | 0 | - | 4.56 | 42,210 |
| Ancient Greek Words | 0 | - | 4.92 | 107,375 |
| Sweden Immigration by Country | 0 | - | 4.54 | 54,545 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,722 |
| United Kingdom A-Z | 0 | - | 4.53 | 85,973 |
| Beatles Songs Quiz | 0 | - | 4.96 | 227,132 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 286,173 |
| Champions League Top 4 | 0 | - | 4.74 | 126,892 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 92,315 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,355,552 |
| Capitals in their Native Languages | 0 | - | 4.94 | 131,419 |
| Top World Languages A-Z | 0 | - | 4.89 | 35,281 |
| German-Speaking Countries | 0 | - | 4.88 | 122,031 |
| French-Speaking Countries | 0 | - | 4.85 | 263,706 |
| Officially Recognized Languages of India | 0 | - | 4.40 | 30,321 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 96,572 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 26,896 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 211,152 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 112,925 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 156,920 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 131,654 |
| African Island Countries | 0 | - | 4.96 | 97,855 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 237,552 |
| Australian States and Territories | 0 | - | 4.96 | 137,828 |
| Australian Immigration by Country | 0 | - | 4.81 | 76,155 |
| Australia True or False | 0 | - | 4.87 | 55,402 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 111,015 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 141,078 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 122,906 |
| North America Map Quiz | 0 | - | 4.98 | 232,504 |
| United States Map Quiz | 0 | - | 4.98 | 4,090,857 |
| Straight Shot to Antarctica | 0 | - | 4.93 | 41,215 |
| European Geography By Letter - E | 0 | - | 4.22 | 110,409 |
| European Geography By Letter - F | 0 | - | 4.18 | 89,886 |
| European Geography By Letter - H | 0 | - | 4.29 | 93,373 |
| European Geography By Letter - G | 0 | - | 4.25 | 99,397 |
| European Geography By Letter - I | 0 | - | 4.11 | 92,850 |
| European Geography By Letter - K | 0 | - | 4.13 | 67,671 |
| European Geography By Letter - O | 0 | - | 4.29 | 60,589 |
| European Geography by Letter - W | 0 | - | 4.21 | 81,243 |
| European Geography By Letter - T | 0 | - | 4.40 | 73,776 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,634 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 49,364 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 187,909 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 147,275 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.95 | 208,720 |
| European Geography A-Z | 0 | - | 4.28 | 48,205 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 84,463 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.94 | 62,970 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 85,085 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 123,798 |
| Slavic Countries | 0 | - | 4.96 | 108,434 |
| Austria... or Australia? | 0 | - | 4.73 | 102,426 |
| Word Chain - France | 0 | - | 4.38 | 42,029 |
| Geography of Germany | 0 | - | 4.33 | 16,706 |
| Ancient Greek Trivia | 0 | - | 4.61 | 65,903 |
| History of Ireland | 0 | - | 4.39 | 23,242 |
| Italian Foods | 0 | - | 4.30 | 70,319 |
