| Canada A-Z | 0 | - | 4.73 | 32,843 |
| US States Quiz | 0 | - | 5.00 | 16,884,536 |
| States of Mexico | 0 | - | 4.96 | 176,225 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,795 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,973 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,701 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,572 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,223 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,894 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,260 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,167 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,583 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,298 |
| Pixelated United States Map | 0 | - | 4.87 | 94,312 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,739 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,816 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,849 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,949 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,488 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,490 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,076 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,365 |
| U.S. States By Population | 0 | - | 4.92 | 153,595 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,501 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,467 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,234 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,659 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,403 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,405 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,184 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,487 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,534 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,652 |
| US States with an Empty Map | 0 | - | 5.00 | 624,907 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,803 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,506 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,124 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,280 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,439 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,883 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,335 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,047 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,691 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,703 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,127 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,923 |
| Flags of North and South America | 0 | - | 4.99 | 373,376 |
| Belize Country Quiz | 0 | - | 4.85 | 20,983 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,800 |
| Countries with the Longest High Speed Rail Networks | 0 | - | 4.91 | 65,767 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,419 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,102 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,113 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,107 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,802 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,901 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,343 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,157 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,318 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,162 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,922 |
| People on Money - United States | 0 | - | 4.31 | 63,348 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,194 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,830 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,405 |
| The Only American Country ... | 0 | - | 4.92 | 121,660 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,153 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,227 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,947 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,981 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,113 |
| States of Brazil | 0 | - | 4.97 | 88,222 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,537 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,519 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,590 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,186 |
| United States Country Quiz | 0 | - | 4.43 | 101,560 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,902 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,929 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,835 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,128 |
| Canada Country Quiz | 0 | - | 4.55 | 132,520 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,239 |
| Canadian Islands on the Map | 0 | - | 4.40 | 20,045 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,472 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,687 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,536 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,995 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,425 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,094 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 52,756 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 48,783 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,049 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,512 |
| U.S. Geography by Letter - R | 0 | - | 4.18 | 31,033 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,455 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,735 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,727 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,199 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,527 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,091 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,621 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,356 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,298 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,372 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 81,978 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,861 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,561 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,069 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,993 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,902 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,357 |
| New England States | 0 | - | 4.51 | 59,816 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,948 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,817 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,830 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,015 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,498 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,195 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,840 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,025 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,943 |
| U.S. States by Borders | 0 | - | 4.61 | 35,331 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,491 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,056 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,807 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,841 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,234 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,882 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,506 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,780 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,877 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,313 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,354 |
| O Canada Lyrics | 0 | - | 4.47 | 50,949 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,553 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,784 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,801 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,375 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,597 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,605 |
| Top U.S. Universities | 0 | - | 4.15 | 145,182 |
| Largest United States Airlines | 0 | - | 4.39 | 55,040 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,082 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,575 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,148 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,849 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 49,807 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,669 |
| U.S. States by Governor | 0 | - | 4.43 | 18,064 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,703 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,367 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,686 |
| American Founding Fathers | 0 | - | 4.42 | 23,229 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,466 |
| California Groups of Things | 0 | - | 4.25 | 45,498 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,850 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,267 |
| New York Groups of Things | 0 | - | 4.35 | 63,768 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,473 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,073 |
| Events in U.S. History | 0 | - | 4.41 | 28,681 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,861 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,530 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,331 |
| Flyover States | 0 | - | 4.52 | 29,519 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,130 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 76,184 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,355 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,109 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,508 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,047 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,544 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,640 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,396 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,904 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,771 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,116 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,314 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,529 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,784 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,713 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,787 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,711 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,201 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,642 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,148 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,998 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,378 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,610 |
| Africa A-Z | 0 | - | 4.57 | 46,619 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,432 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,887 |
| Panama Country Quiz | 0 | - | 4.61 | 25,813 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,590 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,099 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,445 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,781 |
| Names of Generations | 0 | - | 4.09 | 44,981 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,056 |
