| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,634 |
| North America Map Quiz | 0 | - | 4.98 | 246,250 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,514 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,842 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,430 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,222 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,087 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,638 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,940 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,079 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,443 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,369 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,474 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,672 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,423 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,641 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,720 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,319 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,841 |
| States of Mexico | 0 | - | 4.95 | 174,451 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,485 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,326 |
| States of Brazil | 0 | - | 4.97 | 87,010 |
| North American Physical Geography | 0 | - | 4.35 | 30,376 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,427 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,187 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,563 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,884 |
| Austria... or Australia? | 0 | - | 4.68 | 104,065 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,133 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,719 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,496 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,538 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,292 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,322 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,787 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,842 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,065 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,867 |
| Which African Country? | 0 | - | 4.58 | 36,291 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,080 |
| Australian Capitals | 0 | - | 4.92 | 62,646 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,664 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,760 |
| History of Mexico | 0 | - | 4.58 | 15,254 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,243 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,512 |
| Word Chain - South America | 0 | - | 4.51 | 23,821 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,518 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,823 |
| Official European Union Languages | 0 | - | 4.97 | 237,569 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,259 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,371 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,208 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,155 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,639 |
| Asia Map Quiz | 0 | - | 4.99 | 910,362 |
| Which Asian Country? | 0 | - | 4.64 | 57,470 |
| China Multiple Choice | 0 | - | 4.50 | 37,208 |
| Countries of Africa | 0 | - | 5.00 | 2,519,083 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,611 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,364 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,206 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,134 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,846 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,628 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,787 |
| African East Coast | 0 | - | 4.96 | 95,453 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,677 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,315 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,123 |
| African Island Countries | 0 | - | 4.96 | 101,106 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,333 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,938 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,423 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,145 |
| Australian States and Territories | 0 | - | 4.96 | 141,280 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,113 |
| Australia Map Quiz | 0 | - | 4.94 | 343,152 |
| Australia True or False | 0 | - | 4.87 | 56,653 |
| Flags of North and South America | 0 | - | 4.99 | 369,758 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,217 |
| New World Crops | 0 | - | 4.38 | 30,482 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,755 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,051 |
| South American Physical Geography | 0 | - | 4.58 | 18,300 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,446 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,016,516 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,677 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,615 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,614 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,959 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,434 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,654 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,736 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,760 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,800 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,594 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,098 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,036 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,723 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,211 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,078 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,654 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,247 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,729 |
| The Only European Country ... | 0 | - | 4.91 | 214,954 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,069 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,109 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,287 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,210 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,206 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,665 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,494 |
| Slavic Countries | 0 | - | 4.96 | 111,185 |
| France True or False? | 0 | - | 4.43 | 39,850 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,175 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,721 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,527 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,652 |
| Counties of England | 0 | - | 4.97 | 792,090 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,031 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,889 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,250 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,537 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,782 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,174 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,693 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,546 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,229 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,912 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,974 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,125 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,471 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,448 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,854 |
| Countries of the Middle East | 0 | - | 4.96 | 199,744 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,345 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,479 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,262 |
| States of India | 0 | - | 4.94 | 191,484 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,947 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,512 |
| African Great Lakes | 0 | - | 4.82 | 65,642 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,179 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,425 |
| The Only African Country ... | 0 | - | 4.98 | 128,671 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,899 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,130 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,715 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,367 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,578 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,679 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,526 |
| Name a Valid African Country | 0 | - | 4.98 | 153,349 |
| Kenya Country Quiz | 0 | - | 4.86 | 34,626 |
| Tanzania Country Quiz | 0 | - | 4.90 | 32,908 |
| Morocco Country Quiz | 0 | - | 4.81 | 46,209 |
| D.R. Congo Country Quiz | 0 | - | 4.87 | 39,165 |
| Flags of Oceania | 0 | - | 5.00 | 256,724 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,107 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,760 |
| Most Visited Countries by Australians | 0 | - | 4.94 | 90,362 |
| Countries that Visit Australia the Most | 0 | - | 4.92 | 68,728 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,513 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,264 |
| Regions of New Zealand | 0 | - | 4.85 | 28,352 |
| The Only American Country ... | 0 | - | 4.92 | 121,128 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,698 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,408 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,103 |
| Places Mentioned in the Song "Kokomo" | 0 | - | 4.44 | 16,985 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,916 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,131 |
| Famous People from South America | 0 | - | 4.15 | 21,862 |
| South America A-Z | 0 | - | 4.13 | 10,870 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,605 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,638 |
| Central American Countries | 0 | - | 4.98 | 155,469 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,664 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,636 |
| Famous Caribbean People | 0 | - | 4.37 | 12,585 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,981 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,331 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,410 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,175 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,518 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,757 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,969 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,129 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,682 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,076 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,658 |
| California Multiple Choice | 0 | - | 4.40 | 28,063 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,170 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,390 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,869 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,659 |
| US States Quiz | 0 | - | 5.00 | 16,769,609 |
