| United States Map Quiz | 0 | - | 4.98 | 4,174,290 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 114,048 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,990 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 241,033 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,109 |
| Cities and Towns of Massachusetts | 0 | - | 4.93 | 75,312 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 40,353 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,199 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,211 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,342 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,796 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,891 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,742 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,089 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,963 |
| Canada Provinces and Territories | 0 | - | 5.00 | 347,366 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 645,633 |
| North America Map Quiz | 0 | - | 4.98 | 253,001 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,695 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,231 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,619 |
| North American Capitals - Map Quiz | 0 | - | 4.88 | 59,022 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 95,352 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 65,396 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 223,286 |
| 75 Americans Named John | 0 | - | 4.41 | 23,995 |
| Most Common High School Mascots | 0 | - | 4.47 | 32,375 |
| Central American Countries | 0 | - | 4.98 | 157,625 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,718 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 151,236 |
| Territories of the United States | 0 | - | 4.80 | 52,688 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,944 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 176,301 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,990 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,616 |
| New York City Geography | 0 | - | 4.43 | 33,209 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,492 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,392 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,635 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,999 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,657 |
| Native American Tribes in the US | 0 | - | 4.74 | 25,768 |
| American Foods | 0 | - | 3.66 | 39,461 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,472 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,999 |
| U.S. Analogies | 0 | - | 4.27 | 19,730 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,658 |
| Top U.S. Cash Crops | 0 | - | 4.39 | 62,483 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,784 |
| Things Named For People #2 - U.S. Centric | 0 | - | 4.21 | 52,747 |
| Largest Asian-American Ethnic Groups | 0 | - | 4.12 | 41,225 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,999 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,281 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,859 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,548 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,545 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,916 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,485 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,363 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,624 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,188 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,352 |
| Ten Most Rectangular U.S. States | 0 | - | 4.54 | 71,834 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,412 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,303 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,305 |
| Canada Geography Trivia | 0 | - | 4.80 | 47,727 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,100 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,026 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,928 |
| South America Map Quiz | 0 | - | 5.00 | 1,558,970 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,226 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,959 |
| Add A Letter - Make a European City | 0 | - | 4.88 | 23,542 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,814 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,828 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,215 |
| Which Island in the United States? | 0 | - | 4.29 | 29,850 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,162 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,354 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.27 | 14,841 |
| Branches of the U.S. Military | 0 | - | 4.40 | 24,556 |
| Old West History | 0 | - | 4.34 | 15,311 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,540 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 20,000 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,813 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,829 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,752 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,575 |
| US States with the Most Executions | 0 | - | 4.51 | 26,433 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,192 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 48,344 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 47,145 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,278 |
| U.S. Geography True or False #1 | 0 | - | 4.53 | 28,844 |
| U.S. Geography - Multiple Choice | 0 | - | 4.41 | 24,951 |
| Canada Decoder | 0 | - | 4.07 | 18,786 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,232 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,637 |
| US States Quiz | 0 | - | 5.00 | 17,031,373 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,972 |
| Top 10 U.S. States with the Highest Life Expectancy | 0 | - | 4.33 | 41,748 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.43 | 324,647 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,925 |
| History of Mexico | 0 | - | 4.52 | 15,381 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,665 |
| Word Chain - South America | 0 | - | 4.51 | 24,029 |
| Famous Caribbean People | 0 | - | 4.37 | 12,670 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,628 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 750,533 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,617 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,220 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,525 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,503 |
| Three Real and One Fake - U.S. Geography | 0 | - | 4.34 | 29,484 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,194 |
| California Multiple Choice | 0 | - | 4.40 | 28,205 |
| San Francisco Trivia | 0 | - | 4.32 | 15,742 |
| San Francisco A-Z | 0 | - | 4.18 | 9,594 |
| Florida Multiple Choice | 0 | - | 4.33 | 10,218 |
| Boston City Trivia | 0 | - | 4.38 | 24,217 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,852 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,458 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,454 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,612 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,193 |
| Name a Valid Asian Country | 0 | - | 4.98 | 122,014 |
| Name a Valid African Country | 0 | - | 4.98 | 155,356 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,048 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,599 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,604 |
| American Countries on the Pacific Coast | 0 | - | 4.80 | 49,427 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,879 |
| Pixelated United States Map | 0 | - | 4.89 | 95,031 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,808 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,655 |
| Three Real and One Fake - U.S. History | 0 | - | 4.33 | 25,863 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,972 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,087 |
| U.S. History Multiple Choice #2 | 0 | - | 4.33 | 25,145 |
| U.S. History Multiple Choice #1 | 0 | - | 4.29 | 22,310 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,535 |
| U.S. History Multiple Choice #4 | 0 | - | 4.24 | 25,687 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,247 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,488 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,502 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,583 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,643 |
| U.S. States By Population | 0 | - | 4.92 | 154,304 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,429 |
| U.S. States with Longest Names | 0 | - | 4.85 | 45,017 |
| US States with an Empty Map | 0 | - | 5.00 | 629,853 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 89,017 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,619 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,249 |
| Top 10 Most Religious U.S. States | 0 | - | 4.32 | 19,457 |
| U.S. States with the Least Gun Ownership | 0 | - | 4.35 | 25,554 |
| Top 10 US States that Produce the Most Coal | 0 | - | 4.30 | 31,247 |
| U.S. States with Youngest Median Age | 0 | - | 4.32 | 20,650 |
| Top 10 U.S. States by Percent Born in State | 0 | - | 4.25 | 12,402 |
| Top 10 U.S. States by Percent Born out of State | 0 | - | 4.22 | 11,891 |
| U.S. States with the Most Workplace Fatalities | 0 | - | 4.09 | 9,602 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,317 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 533,245 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,488 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,943 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,330 |
| Word Scramble - Asian Countries | 0 | - | 4.48 | 109,419 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 277,045 |
| Word Chain - Africa | 0 | - | 4.47 | 31,740 |
| U.S. History Multiple Choice #5 | 0 | - | 4.26 | 11,615 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,210 |
| Name a Valid Country A-Z | 0 | - | 4.98 | 123,347 |
| Famous People from South America | 0 | - | 4.15 | 22,148 |
| USA Tourist Attractions by Description #2 | 0 | - | 4.00 | 21,374 |
| American Inventions #1 | 0 | - | 3.62 | 31,541 |
| American Inventions #2 | 0 | - | 3.93 | 15,906 |
| 10 Longest Rivers in the United States | 0 | - | 4.86 | 39,477 |
| Rivers of the United States | 0 | - | 4.93 | 66,834 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,454 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,995 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,376 |
| California Groups of Things | 0 | - | 4.26 | 45,815 |
| University of California Campuses | 0 | - | 3.84 | 8,975 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,738 |
| New York Groups of Things | 0 | - | 4.39 | 72,414 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,640 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,254 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,493 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,966 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,328 |
| Draw All US State Borders | 0 | - | 4.99 | 141,705 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,104 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,756 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 93,038 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,617 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,137 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,303 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,269 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.07 | 28,972 |
