| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,342 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.91 | 53,197 |
| States of Brazil | 0 | - | 4.98 | 86,747 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,718 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,969 |
| States of Mexico | 0 | - | 4.95 | 173,966 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,535 |
| Word Chain - South America | 0 | - | 4.51 | 23,791 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,189 |
| Flags of North and South America | 0 | - | 4.99 | 368,788 |
| South American Physical Geography | 0 | - | 4.58 | 18,291 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,612 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,634 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,044 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,880 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,889 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,510 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,228 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,312 |
| The Only American Country ... | 0 | - | 4.92 | 120,957 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,481 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,757 |
| Famous People from South America | 0 | - | 4.15 | 21,828 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,407 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,196 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,228 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,076 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,547 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,017 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,229 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,607 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,670 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,134 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.91 | 79,654 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,246 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,032 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,643 |
| History of Mexico | 0 | - | 4.58 | 15,244 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,010 |
| South America A-Z | 0 | - | 4.13 | 10,852 |
| Central American Countries | 0 | - | 4.98 | 155,299 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,370 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,379 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,827 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,460 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,571 |
| Pixelated United States Map | 0 | - | 4.89 | 93,657 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,725 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,042 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,596 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,773 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,992 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,607 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,647 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,981 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,222 |
| U.S. States By Population | 0 | - | 4.92 | 152,563 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,650 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,007 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,013 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,743 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,859 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,051 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,245 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,194 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,631 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,149 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,772 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,964 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,543 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,868 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,472 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,228 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,056 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,995 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,707 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,651 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,460 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,145 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,112 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,703 |
| Belize Country Quiz | 0 | - | 4.85 | 20,842 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,084 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,208 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,659 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,223 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,944 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,837 |
| WWI... or WWII? | 0 | - | 4.85 | 140,989 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,839 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,914 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,614 |
| Famous Caribbean People | 0 | - | 4.37 | 12,572 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,955 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,706 |
| Territories of the United States | 0 | - | 4.79 | 52,211 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,438 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,775 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,847 |
| California Multiple Choice | 0 | - | 4.40 | 28,055 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,170 |
| New York City Geography | 0 | - | 4.42 | 32,981 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,306 |
| Europe Map Quiz | 0 | - | 5.00 | 4,738,621 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 210,301 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,789 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,313 |
| Which African Country? | 0 | - | 4.58 | 36,268 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,878 |
| Australian Capitals | 0 | - | 4.92 | 62,613 |
| Pixelated Americas Map | 0 | - | 4.39 | 46,894 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,230 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,497 |
| South American Cities on the Map | 0 | - | 4.56 | 35,273 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,428 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,282 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,147 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,342 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,496 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,101 |
| United States Country Quiz | 0 | - | 4.43 | 100,808 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,678 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,661 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,159 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,821 |
| 75 Americans Named John | 0 | - | 4.41 | 23,840 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,705 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,664 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,496 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,003 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,178 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,509 |
| New England States | 0 | - | 4.51 | 59,726 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,548 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,912 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,449 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,724 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,721 |
| U.S. States by Borders | 0 | - | 4.63 | 35,130 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 183,256 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,290 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,331 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,041 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,382 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,841 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,465 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,951 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,243 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,474 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,414 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,460 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,213 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,009 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,676 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,029 |
| Canada Country Quiz | 0 | - | 4.55 | 131,905 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,751 |
| Canada A-Z | 0 | - | 4.73 | 32,689 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,141 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,220 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,501 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,731 |
| Official European Union Languages | 0 | - | 4.97 | 237,268 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,101 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,875 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,155 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,525 |
| Asia Map Quiz | 0 | - | 4.99 | 908,799 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,721 |
| Which Asian Country? | 0 | - | 4.64 | 57,442 |
| China Multiple Choice | 0 | - | 4.50 | 37,178 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,516 |
| Countries of Africa | 0 | - | 5.00 | 2,514,248 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,535 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,051 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,009 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,909 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,736 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,492 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,667 |
| African East Coast | 0 | - | 4.96 | 95,275 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,417 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,168 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,870 |
| African Island Countries | 0 | - | 4.96 | 100,976 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,049 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,130 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,843 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,416 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,018 |
| Australian States and Territories | 0 | - | 4.96 | 141,149 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,076 |
| Australia Map Quiz | 0 | - | 4.94 | 342,874 |
| Australia True or False | 0 | - | 4.87 | 56,588 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,261 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,335 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,619 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,907 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,420 |
| North America Map Quiz | 0 | - | 4.98 | 245,623 |
