| United States Map Quiz | 0 | - | 4.98 | 4,153,975 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,654 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,359 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,170 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,325 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,740 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,819 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,378 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,774 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,520 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,044 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,425 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,113 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,372 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,566 |
| North America Map Quiz | 0 | - | 4.98 | 247,686 |
| Canada Provinces and Territories | 0 | - | 5.00 | 341,385 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 639,167 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,040 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,374 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,488 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,186 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,050 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,713 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 94,550 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,853 |
| The Most Recent... United States | 0 | - | 4.45 | 18,407 |
| Central American Countries | 0 | - | 4.98 | 155,889 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,900 |
| Territories of the United States | 0 | - | 4.79 | 52,334 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,572 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,265 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,075 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,851 |
| New York City Geography | 0 | - | 4.42 | 33,055 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,089 |
| Native American Tribes in the US | 0 | - | 4.72 | 25,448 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,688,154 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,512 |
| Old West History | 0 | - | 4.33 | 15,258 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,517 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,913 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,707 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,426 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,257 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,694 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,602 |
| 75 Americans Named John | 0 | - | 4.41 | 23,890 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.11 | 40,961 |
| New York True or False? | 0 | - | 4.53 | 33,788 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,573 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,977 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,572 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,118 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,340 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,621 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,759 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,726 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,353 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,387 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,892 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,824 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,268 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,499 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,510 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,084 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,292 |
| South America Map Quiz | 0 | - | 5.00 | 1,547,328 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,091 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,128 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,801 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,759 |
| U.S. History Multiple Choice #2 | 0 | - | 4.32 | 25,052 |
| U.S. History Multiple Choice #1 | 0 | - | 4.31 | 22,228 |
| U.S. History Multiple Choice #4 | 0 | - | 4.26 | 25,566 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,516 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,539 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,700 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,071 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,101 |
| Which Island in the United States? | 0 | - | 4.29 | 29,427 |
| American Inventions #1 | 0 | - | 3.63 | 31,498 |
| American Inventions #2 | 0 | - | 3.93 | 15,857 |
| American Foods | 0 | - | 3.66 | 39,358 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,127 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,221 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,725 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,293 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,869 |
| U.S. Analogies | 0 | - | 4.27 | 19,654 |
| Branches of the U.S. Military | 0 | - | 4.39 | 24,327 |
| U.S. Presidents by Picture | 0 | - | 4.87 | 425,872 |
| Florida True or False? | 0 | - | 4.48 | 28,647 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,667 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,518 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,333 |
| US States with the Most Executions | 0 | - | 4.51 | 26,385 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,035 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,917 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,112 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,678 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,769 |
| Name a Valid Answer - United States #2 | 0 | - | 4.16 | 27,294 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,888 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,126 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,285 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,704 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 56,612 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,611 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,336 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,780 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,789 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,323 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,196 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,217 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,317 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,798 |
| First Names of U.S. Presidents | 0 | - | 4.86 | 381,091 |
| Name a Valid U.S. President #1 | 0 | - | 4.89 | 191,345 |
| Play-Doh Presidents | 0 | - | 5.00 | 82,153 |
| California Multiple Choice | 0 | - | 4.40 | 28,087 |
| San Francisco Trivia | 0 | - | 4.32 | 15,693 |
| San Francisco A-Z | 0 | - | 4.18 | 9,560 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,180 |
| Boston City Trivia | 0 | - | 4.38 | 24,159 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,076 |
| US States Quiz | 0 | - | 5.00 | 16,831,612 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,593 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,640 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,718 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,237 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,196 |
| History of Mexico | 0 | - | 4.58 | 15,291 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,072 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,294 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,714 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,145 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,695 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,308 |
| Pixelated United States Map | 0 | - | 4.87 | 94,073 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,347 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,512 |
| University of California Campuses | 0 | - | 3.84 | 8,904 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,271 |
| U.S. History for Dummies | 0 | - | 4.47 | 82,927 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,641 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,165 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,206 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,693 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,962 |
| U.S. States By Population | 0 | - | 4.92 | 153,007 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,187 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,314 |
| US States with an Empty Map | 0 | - | 5.00 | 623,267 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,130 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,104 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,463 |
| Top 10 Most Religious U.S. States | 0 | - | 4.31 | 19,325 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,439 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.27 | 25,437 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,593 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,326 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,834 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,564 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,189 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 60,922 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 41,523 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,100 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 72,560 |
| All Modern-Day Countries Ever Controlled by Chinese People | 0 | - | 4.82 | 54,677 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,881 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,338 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,106 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,138 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,541 |
| American Founding Fathers | 0 | - | 4.42 | 23,201 |
| People on Money - United States | 0 | - | 4.31 | 63,322 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,406 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,989 |
| The American Civil War | 0 | - | 4.62 | 52,372 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 505,463 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,386 |
| Draw All US State Borders | 0 | - | 4.99 | 136,600 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,598 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,336 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,174 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,530 |
| Canada Decoder | 0 | - | 4.12 | 18,705 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,728 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,897 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 212,249 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 165,164 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,481 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,180 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,682 |
| Countries of Asia in 1900 | 0 | - | 4.50 | 57,907 |
| Modern-Day Countries of the Persian Empire on a Map | 0 | - | 4.98 | 69,694 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 95,102 |
| Modern Day Countries of the Japanese Empire on a Map | 0 | - | 4.98 | 89,060 |
| Australian Capitals | 0 | - | 4.92 | 62,695 |
