| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,260 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,099 |
| States of Brazil | 0 | - | 4.98 | 86,605 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,082 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,921 |
| States of Mexico | 0 | - | 4.95 | 173,699 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,482 |
| Word Chain - South America | 0 | - | 4.51 | 23,772 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,744 |
| Flags of North and South America | 0 | - | 4.99 | 368,178 |
| South American Physical Geography | 0 | - | 4.58 | 18,281 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,603 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,013,326 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,012 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,496 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,499 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,376 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,755 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,052 |
| The Only American Country ... | 0 | - | 4.92 | 120,866 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,426 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,755 |
| Famous People from South America | 0 | - | 4.15 | 21,811 |
| Uruguay Country Quiz | 0 | - | 4.83 | 31,384 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,105 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,132 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,024 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,471 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,956 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,156 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,557 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,484 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,106 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,162 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,163 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,976 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,629 |
| History of Mexico | 0 | - | 4.58 | 15,239 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,937 |
| South America A-Z | 0 | - | 4.13 | 10,847 |
| Central American Countries | 0 | - | 4.98 | 155,183 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,182 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,258 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,761 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,343 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,285 |
| Pixelated United States Map | 0 | - | 4.89 | 93,594 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,624 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,955 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,564 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,713 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,870 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,492 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,534 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,825 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,082 |
| U.S. States By Population | 0 | - | 4.92 | 152,479 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,530 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,950 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,955 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,656 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,804 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,969 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,005 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,141 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,565 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,113 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,718 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,901 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,468 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,722 |
| Washington... or Washington D.C.? | 0 | - | 4.33 | 26,472 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,168 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,999 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,936 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,701 |
| Guyana Country Quiz | 0 | - | 4.49 | 22,630 |
| Venezuela Country Quiz | 0 | - | 4.50 | 30,438 |
| Paraguay Country Quiz | 0 | - | 4.53 | 25,125 |
| Bolivia Country Quiz | 0 | - | 4.63 | 26,077 |
| Suriname Country Quiz | 0 | - | 4.60 | 19,693 |
| Belize Country Quiz | 0 | - | 4.85 | 20,829 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,074 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,197 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,655 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,214 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,691 |
| Iceland... or Ireland? | 0 | - | 4.74 | 56,815 |
| WWI... or WWII? | 0 | - | 4.85 | 140,827 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,712 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,911 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,605 |
| Famous Caribbean People | 0 | - | 4.37 | 12,571 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 23,945 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,696 |
| Territories of the United States | 0 | - | 4.79 | 52,181 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,417 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,676 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,808 |
| California Multiple Choice | 0 | - | 4.40 | 28,047 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,167 |
| New York City Geography | 0 | - | 4.42 | 32,962 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,268 |
| Europe Map Quiz | 0 | - | 5.00 | 4,735,285 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,962 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 277,297 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,976 |
| Which African Country? | 0 | - | 4.58 | 36,258 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,238 |
| Australian Capitals | 0 | - | 4.92 | 62,605 |
| Pixelated Americas Map | 0 | - | 4.40 | 46,862 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,217 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,484 |
| South American Cities on the Map | 0 | - | 4.57 | 35,261 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,379 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,276 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,126 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,314 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,488 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,095 |
| United States Country Quiz | 0 | - | 4.43 | 100,726 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,645 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,646 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,033 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,780 |
| 75 Americans Named John | 0 | - | 4.41 | 23,832 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,699 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,632 |
| North Carolina... or South Carolina? | 0 | - | 4.21 | 10,490 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 24,996 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,170 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,499 |
| New England States | 0 | - | 4.51 | 59,715 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,529 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,897 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,380 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,691 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,690 |
| U.S. States by Borders | 0 | - | 4.63 | 35,107 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,983 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,268 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,177 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,017 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,357 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,823 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,439 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,920 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,229 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,448 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,353 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,422 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,178 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,949 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,636 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 70,978 |
| Canada Country Quiz | 0 | - | 4.55 | 131,832 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,694 |
| Canada A-Z | 0 | - | 4.73 | 32,673 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,132 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,205 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,493 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,670 |
| Official European Union Languages | 0 | - | 4.97 | 237,136 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,007 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,594 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,122 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,928 |
| Asia Map Quiz | 0 | - | 4.99 | 908,064 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,688 |
| Which Asian Country? | 0 | - | 4.64 | 57,425 |
| China Multiple Choice | 0 | - | 4.50 | 37,162 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,467 |
| Countries of Africa | 0 | - | 5.00 | 2,511,560 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,488 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,309 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,921 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,783 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,661 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,400 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,589 |
| African East Coast | 0 | - | 4.96 | 95,171 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,311 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,044 |
| Top African Languages on a Map | 0 | - | 4.92 | 72,688 |
| African Island Countries | 0 | - | 4.96 | 100,891 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,878 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,102 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,795 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,405 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 49,932 |
| Australian States and Territories | 0 | - | 4.96 | 141,035 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,046 |
| Australia Map Quiz | 0 | - | 4.94 | 342,720 |
| Australia True or False | 0 | - | 4.87 | 56,553 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,210 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,262 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,611 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,892 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,390 |
| North America Map Quiz | 0 | - | 4.98 | 244,958 |
