| Canada Provinces and Territories | 0 | - | 5.00 | 340,917 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,093 |
| United States Map Quiz | 0 | - | 4.98 | 4,152,209 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,804 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,849 |
| Canada A-Z | 0 | - | 4.73 | 32,759 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,350 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 57,663 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 63,767 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,333 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,301 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 73,669 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,784 |
| States of Mexico | 0 | - | 4.95 | 175,350 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,412 |
| Central American Countries | 0 | - | 4.98 | 155,807 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 147,594 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,732 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,255 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,103 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,052 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,992 |
| U.S. Cabinet Departments | 0 | - | 4.85 | 72,780 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,037 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,471 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,495 |
| Pixelated United States Map | 0 | - | 4.87 | 94,019 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,270 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,460 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,597 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,106 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,135 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,637 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,897 |
| U.S. States By Population | 0 | - | 4.92 | 152,963 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,133 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,292 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,340 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,076 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,081 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,425 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,731 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,479 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,003 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,409 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,082 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,341 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,239 |
| Countries Closest to Canada | 0 | - | 4.91 | 197,954 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,451 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,560 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,313 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,251 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,437 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,317 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,413 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,282 |
| Flags of North and South America | 0 | - | 4.99 | 371,534 |
| South America Map Quiz | 0 | - | 5.00 | 1,546,766 |
| Belize Country Quiz | 0 | - | 4.85 | 20,920 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,167 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,517 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,194 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,216 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,787 |
| Territories of the United States | 0 | - | 4.79 | 52,310 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.79 | 39,559 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 175,186 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,876 |
| New York City Geography | 0 | - | 4.42 | 33,046 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,006 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,208 |
| The Only American Country ... | 0 | - | 4.92 | 121,354 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,873 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,656 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,298 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,937 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,746 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,555 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,795 |
| States of Brazil | 0 | - | 4.97 | 87,466 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,655 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,894 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,443 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,545 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,153 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,124 |
| United States Country Quiz | 0 | - | 4.43 | 101,254 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,808 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,377 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,459 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,857 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,400 |
| Canada Country Quiz | 0 | - | 4.54 | 132,268 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,022 |
| Canadian Islands on the Map | 0 | - | 4.40 | 19,989 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,169 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 28,490 |
| Canada Decoder | 0 | - | 4.12 | 18,701 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,728 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,618 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,347 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,874 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,308 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,001 |
| History of Mexico | 0 | - | 4.58 | 15,287 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,646 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,015 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,525 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,692 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,762 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,023 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 55,220 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,805 |
| New England States | 0 | - | 4.51 | 59,777 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,736 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,972 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,425 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,135 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,668 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,898 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,853 |
| U.S. States by Borders | 0 | - | 4.61 | 35,244 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 184,816 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,414 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,921 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,076 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,141 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,555 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,961 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,846 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,555 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,104 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,330 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,609 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,720 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,697 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,340 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,343 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,871 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,789 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,118 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,317 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.73 | 63,768 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,460 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,727 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,658 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,257 |
| Top U.S. Universities | 0 | - | 4.15 | 144,776 |
| Largest United States Airlines | 0 | - | 4.39 | 54,972 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,694 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,489 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,068 |
| U.S. States by Governor | 0 | - | 4.43 | 18,034 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,661 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,318 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,640 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,819 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,890 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 33,085 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,704 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,769 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,504 |
| Flyover States | 0 | - | 4.52 | 29,471 |
| U.S. States With Double Letters | 0 | - | 4.54 | 24,066 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,057 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,241 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,800 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.45 | 29,665 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,503 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,321 |
| US States with the Most Executions | 0 | - | 4.51 | 26,384 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 29,029 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,462 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,893 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,264 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,616 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,102 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,982 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,048 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,810 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,182 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,542 |
| Africa A-Z | 0 | - | 4.57 | 46,555 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,377 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,824 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,498 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 22,045 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,741 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,097 |
| Which Island in the United States? | 0 | - | 4.29 | 29,401 |
| American Foods | 0 | - | 3.66 | 39,351 |
| Countries Across the Ocean from the U.S. | 0 | - | 3.95 | 32,215 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,717 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,285 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,861 |
| Old West History | 0 | - | 4.33 | 15,256 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,515 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,911 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,545 |
