| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,634 |
| North America Map Quiz | 0 | - | 4.98 | 246,256 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,515 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,843 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,430 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,223 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,090 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,638 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 217,947 |
| 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 | 112,371 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,475 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,673 |
| 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 | 174,457 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,486 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,328 |
| States of Brazil | 0 | - | 4.97 | 87,014 |
| 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 | 62,188 |
| 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 | 527,541 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,294 |
| The U.S. Pledge of Allegiance | 0 | - | 3.98 | 18,322 |
| Europe Map Quiz | 0 | - | 5.00 | 4,743,853 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 210,866 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,066 |
| Africa Map Quiz | 0 | - | 5.00 | 2,109,887 |
| Which African Country? | 0 | - | 4.58 | 36,291 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,110 |
| Australian Capitals | 0 | - | 4.92 | 62,647 |
| 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 | 23,822 |
| United States Map Quiz | 0 | - | 4.98 | 4,147,546 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,828 |
| Official European Union Languages | 0 | - | 4.97 | 237,570 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,260 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,380 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,209 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,155 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,647 |
| Asia Map Quiz | 0 | - | 4.99 | 910,388 |
| Which Asian Country? | 0 | - | 4.64 | 57,470 |
| China Multiple Choice | 0 | - | 4.50 | 37,208 |
| Countries of Africa | 0 | - | 5.00 | 2,519,124 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,614 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,369 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,207 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,136 |
| 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 | 32,788 |
| African East Coast | 0 | - | 4.96 | 95,454 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,677 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,316 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,124 |
| African Island Countries | 0 | - | 4.96 | 101,106 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,335 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,940 |
| 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 | 141,281 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,113 |
| Australia Map Quiz | 0 | - | 4.94 | 343,156 |
| Australia True or False | 0 | - | 4.87 | 56,653 |
| Flags of North and South America | 0 | - | 4.99 | 369,771 |
| Largest Land Animals of the Americas | 0 | - | 4.38 | 20,217 |
| New World Crops | 0 | - | 4.38 | 30,485 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,756 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,071 |
| 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 | 1,016,544 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,677 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,621 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,619 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,963 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,435 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,654 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,738 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,762 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,312 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,802 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,632 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,102 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,043 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,725 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,213 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,083 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,658 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,253 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,731 |
| The Only European Country ... | 0 | - | 4.91 | 214,960 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,070 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,113 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,290 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,213 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,209 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,667 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,494 |
| Slavic Countries | 0 | - | 4.96 | 111,190 |
| France True or False? | 0 | - | 4.43 | 39,851 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,178 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,721 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,528 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,654 |
| Counties of England | 0 | - | 4.97 | 792,106 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,031 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,890 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,257 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,545 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 109,783 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,177 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,695 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,547 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,232 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,914 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 70,976 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 98,127 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,475 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.93 | 49,449 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,871 |
| Countries of the Middle East | 0 | - | 4.96 | 199,747 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,345 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,480 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,263 |
| States of India | 0 | - | 4.94 | 191,499 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 57,948 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,513 |
| African Great Lakes | 0 | - | 4.82 | 65,643 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,180 |
| African Diaspora - Top 10 Countries | 0 | - | 4.92 | 72,425 |
| The Only African Country ... | 0 | - | 4.98 | 128,673 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,901 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,131 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,717 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,368 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 320,584 |
| Countries Closest to Africa | 0 | - | 4.96 | 156,681 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,527 |
| Name a Valid African Country | 0 | - | 4.98 | 153,350 |
| 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 | 256,728 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,107 |
| Australia Cities Map Quiz | 0 | - | 4.83 | 144,762 |
| 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 | 166,515 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,265 |
| Regions of New Zealand | 0 | - | 4.85 | 28,354 |
| The Only American Country ... | 0 | - | 4.92 | 121,130 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,700 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,409 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,104 |
| 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 | 47,606 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,640 |
| Central American Countries | 0 | - | 4.98 | 155,472 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,665 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,636 |
| Famous Caribbean People | 0 | - | 4.37 | 12,585 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,982 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,332 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,413 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,176 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,519 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,760 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,970 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,131 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,685 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,081 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,660 |
| California Multiple Choice | 0 | - | 4.40 | 28,063 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,170 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,395 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,870 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,660 |
| US States Quiz | 0 | - | 5.00 | 16,769,903 |
