| Canada Provinces and Territories | 0 | - | 5.00 | 337,393 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,194 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,988 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,642 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,461 |
| Canada A-Z | 0 | - | 4.73 | 32,630 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,533 |
| North American Capitals - Map Quiz | 0 | - | 4.87 | 56,877 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.97 | 62,809 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,870 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,779 |
| Cities and Towns of Massachusetts | 0 | - | 4.92 | 72,979 |
| Countries Larger Than Texas but With Fewer People | 0 | - | 4.92 | 39,443 |
| States of Mexico | 0 | - | 4.95 | 173,070 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,695 |
| Central American Countries | 0 | - | 4.98 | 154,933 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 145,634 |
| Name the U.S. National Parks | 0 | - | 4.85 | 58,171 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,547 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,045 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,693 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,040 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,487 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,548 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,091 |
| Canada Immigration by Country | 0 | - | 4.51 | 62,173 |
| Pixelated United States Map | 0 | - | 4.89 | 93,353 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,322 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,740 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,612 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,243 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,300 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,513 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,790 |
| U.S. States By Population | 0 | - | 4.92 | 152,276 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,283 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,790 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,848 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,462 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,720 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,796 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,788 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,039 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,410 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,032 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,621 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,760 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,260 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,409 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 100,995 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 81,881 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,796 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,330 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 97,769 |
| U.S. Federal Holidays | 0 | - | 4.33 | 99,074 |
| Canadian Geography on the Map | 0 | - | 4.55 | 26,179 |
| Flags of North and South America | 0 | - | 4.99 | 365,860 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,472 |
| Belize Country Quiz | 0 | - | 4.85 | 20,782 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,033 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.89 | 65,111 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,647 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 127,968 |
| Dominica Country Quiz | 0 | - | 4.81 | 19,650 |
| Territories of the United States | 0 | - | 4.79 | 52,107 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.78 | 39,353 |
| Most Mentioned Enemies of the USA | 0 | - | 4.77 | 174,455 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,779 |
| New York City Geography | 0 | - | 4.42 | 32,885 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,548 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,788 |
| The Only American Country ... | 0 | - | 4.92 | 120,672 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,275 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,017 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,843 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,903 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,063 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 52,812 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,341 |
| States of Brazil | 0 | - | 4.98 | 86,241 |
| Caribbean Countries and Territories | 0 | - | 4.80 | 112,280 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,584 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,235 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,459 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,067 |
| Biggest U.S. Car Insurance Companies | 0 | - | 4.26 | 6,107 |
| United States Country Quiz | 0 | - | 4.43 | 100,490 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,580 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,123 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,608 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,314 |
| Famous Canadians Quiz | 0 | - | 3.94 | 23,355 |
| Canada Country Quiz | 0 | - | 4.54 | 131,642 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,562 |
| Canadian Islands on the Map | 0 | - | 4.39 | 19,909 |
| 20 Most-Visited Places in Canada | 0 | - | 4.27 | 13,117 |
| Canadian Musical Acts by Two Songs | 0 | - | 4.02 | 24,473 |
| Canada Decoder | 0 | - | 4.12 | 18,638 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,270 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,130 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,662 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,932 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,611 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,044 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,051 |
| History of Mexico | 0 | - | 4.58 | 15,218 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,834 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,322 |
| Recommended Childhood Vaccines for Americans | 0 | - | 4.42 | 14,627 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,701 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,669 |
| Red State or Blue State Trait? | 0 | - | 4.42 | 54,897 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,563 |
| New England States | 0 | - | 4.51 | 59,699 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,431 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,876 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,259 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,012 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,265 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,600 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,640 |
| U.S. States by Borders | 0 | - | 4.63 | 35,049 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,303 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,215 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,094 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,946 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,967 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,274 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,754 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,756 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,392 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,840 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,190 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,385 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,901 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,271 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,126 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,799 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,526 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,007 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 58,981 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 63,437 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,381 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,655 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,106 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,373 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,034 |
| Top U.S. Universities | 0 | - | 4.15 | 143,938 |
| Largest United States Airlines | 0 | - | 4.39 | 54,818 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,738 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,330 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,918 |
| U.S. States by Governor | 0 | - | 4.43 | 17,975 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,561 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,140 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,531 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,743 |
| Boston Talk to English Translation Quiz | 0 | - | 4.59 | 55,661 |
| Embarrassing Chapters in US History | 0 | - | 4.17 | 32,979 |
| U.S. History Multiple Choice #3 | 0 | - | 4.43 | 24,635 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,571 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,454 |
| Flyover States | 0 | - | 4.52 | 29,376 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,888 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,768 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,965 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,573 |
| U.S. States with the Most Gun Ownership | 0 | - | 4.44 | 29,567 |
| U.S. States with Oldest Median Age | 0 | - | 4.33 | 42,342 |
| Top 10 U.S. States with the Longest Commutes | 0 | - | 4.28 | 44,135 |
| US States with the Most Executions | 0 | - | 4.51 | 26,346 |
| Top 10 U.S. States with the Most Lighthouses | 0 | - | 4.61 | 28,906 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,296 |
| Top 10 Least White U.S. States | 0 | - | 4.17 | 47,576 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,275 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,090 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.40 | 40,055 |
| Top 10 Least Happy U.S. States | 0 | - | 4.54 | 24,011 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,447 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,831 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,508 |
| Bahamas Country Quiz | 0 | - | 4.63 | 19,066 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,425 |
| Africa A-Z | 0 | - | 4.57 | 46,346 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,446 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,186 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,658 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,341 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,890 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,633 |
| USA Tourist Attractions by Description #1 | 0 | - | 4.14 | 27,028 |
| Which Island in the United States? | 0 | - | 4.29 | 29,131 |
| American Foods | 0 | - | 3.66 | 39,269 |
| U.S. Landmarks Picture Quiz | 0 | - | 4.26 | 14,658 |
| U.S. Groups of Four Quiz | 0 | - | 4.39 | 25,173 |
| U.S. Groups of Three Quiz | 0 | - | 4.04 | 20,790 |
| Old West History | 0 | - | 4.32 | 15,217 |
| Life of Benjamin Franklin | 0 | - | 4.24 | 6,486 |
| American Revolution - Multiple Choice | 0 | - | 4.34 | 19,840 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,480 |
