| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,179 |
| United States Map Quiz | 0 | - | 4.98 | 4,164,812 |
| South America Map Quiz | 0 | - | 5.00 | 1,552,400 |
| Uruguay Country Quiz | 0 | - | 4.84 | 31,655 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,825 |
| North America Map Quiz | 0 | - | 4.98 | 249,772 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,835 |
| Canada Provinces and Territories | 0 | - | 5.00 | 344,195 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,196 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,363 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,805 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 903,170 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 58,305 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,916 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 64,488 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,653 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,830 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,671 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 74,504 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,076 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,782 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,280 |
| States of Brazil | 0 | - | 4.97 | 88,834 |
| Central American Countries | 0 | - | 4.98 | 156,890 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,027 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,277 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,746 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,340 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,984 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,450 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,699 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,477 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,775 |
| History of Mexico | 0 | - | 4.58 | 15,341 |
| Word Chain - South America | 0 | - | 4.51 | 23,948 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 221,151 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,209 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,616 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,752 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,463 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,209 |
| Territories of the United States | 0 | - | 4.80 | 52,491 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,762 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,774 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,321 |
| Name a Valid Answer - United States #1 | 0 | - | 4.63 | 94,178 |
| New York City Geography | 0 | - | 4.42 | 33,139 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,752 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,738 |
| Islands of the Galápagos | 0 | - | 4.54 | 4,785 |
| Famous People from South America | 0 | - | 4.15 | 22,033 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,871 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,626 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,619 |
| States of Mexico | 0 | - | 4.96 | 177,096 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,314 |
| Largest Caribbean Islands | 0 | - | 4.07 | 16,723 |
| Famous Caribbean People | 0 | - | 4.37 | 12,640 |
| Saintly Islands of the Caribbean | 0 | - | 4.32 | 24,090 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,539 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,381 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,741 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,685 |
| 75 Americans Named John | 0 | - | 4.41 | 23,935 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,089 |
| California Multiple Choice | 0 | - | 4.40 | 28,131 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,190 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,770 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,117 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,764 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,320 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,441 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,769 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,117 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,063 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,491 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,795 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,108 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,988 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,566 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,378 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,313 |
| South American Physical Geography | 0 | - | 4.58 | 18,378 |
| Peru True or False? | 0 | - | 4.58 | 15,281 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,739 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,801 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,145 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,095 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,266 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,628 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,191 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,214 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,247 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,576 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,158 |
| Which Island in the United States? | 0 | - | 4.29 | 29,637 |
| American Foods | 0 | - | 3.66 | 39,412 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,135 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,295 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,785 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,374 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,932 |
| U.S. Analogies | 0 | - | 4.27 | 19,701 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,429 |
| Old West History | 0 | - | 4.34 | 15,288 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,529 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,962 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,746 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,636 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,464 |
| US States with the Most Executions | 0 | - | 4.51 | 26,413 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,109 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,119 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,192 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,757 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,845 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,221 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.03 | 28,754 |
| Canada Decoder | 0 | - | 4.07 | 18,741 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,481 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,392 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,921 |
| South America A-Z | 0 | - | 4.13 | 10,929 |
| North America Cities by Map | 0 | - | 4.41 | 47,869 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,636 |
| U.S. Highway Signs By State | 0 | - | 4.46 | 15,539 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,402 |
| San Francisco Trivia | 0 | - | 4.32 | 15,713 |
| San Francisco A-Z | 0 | - | 4.18 | 9,583 |
| Boston City Trivia | 0 | - | 4.38 | 24,181 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,693 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,322 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,968 |
| Ancient Rome - True or False? | 0 | - | 4.85 | 43,102 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,902 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,749 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,734 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,391 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,500 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,060 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,616 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,362 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,862 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,579 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,398 |
| Official European Union Languages | 0 | - | 4.97 | 239,076 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,235 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,502 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,491 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,060 |
| Asia Map Quiz | 0 | - | 4.99 | 920,592 |
| Which Asian Country? | 0 | - | 4.64 | 57,651 |
| Africa Map Quiz | 0 | - | 5.00 | 2,122,966 |
| Which African Country? | 0 | - | 4.58 | 36,409 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,034 |
| Australia Map Quiz | 0 | - | 4.95 | 345,389 |
| Largest Land Animals of the Americas | 0 | - | 4.39 | 20,287 |
| New World Crops | 0 | - | 4.38 | 30,925 |
| Pixelated Americas Map | 0 | - | 4.39 | 47,300 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,806 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,721 |
| North American Physical Geography | 0 | - | 4.35 | 30,439 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,344 |
| American Inventions #1 | 0 | - | 3.63 | 31,516 |
| American Inventions #2 | 0 | - | 3.93 | 15,875 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,844 |
| Most Populous Native American Tribes | 0 | - | 4.28 | 12,458 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,590 |
| Shrinking U.S. States | 0 | - | 4.38 | 40,388 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,505 |
| University of California Campuses | 0 | - | 3.84 | 8,929 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,418 |
| Canada True or False? | 0 | - | 4.57 | 55,005 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,004 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,771 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 28,090 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,826 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,290 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,148 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,892 |
| The Only European Country ... | 0 | - | 4.91 | 217,711 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,790 |
| Russia True or False? | 0 | - | 4.67 | 35,804 |
| France True or False? | 0 | - | 4.44 | 39,996 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,741 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,938 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,433 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,385,280 |
| China Multiple Choice | 0 | - | 4.50 | 37,341 |
| Countries of Africa | 0 | - | 5.00 | 2,547,583 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,194 |
| African East Coast | 0 | - | 4.96 | 96,387 |
| Western Africa Map Quiz | 0 | - | 4.97 | 74,239 |
| South Africa Multiple Choice | 0 | - | 4.55 | 27,516 |
| Flags of Oceania | 0 | - | 5.00 | 260,963 |
| All First-Level Subdivisions of Oceania on a Map | 0 | - | 4.97 | 27,471 |
| Australian States and Territories | 0 | - | 4.96 | 142,360 |
| Australia Cities Map Quiz | 0 | - | 4.82 | 146,058 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,385 |
