| U.S. Cabinet Departments | 0 | - | 4.86 | 73,113 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,823 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,630 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,521 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,053 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,901 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,555 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,229 |
| US States Quiz | 0 | - | 5.00 | 17,002,223 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,947 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,866 |
| States of Mexico | 0 | - | 4.96 | 178,350 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,682 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,510 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,446 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,590 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,618 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,750 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,723 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,706 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,175 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,331 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,827 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,598 |
| Pixelated United States Map | 0 | - | 4.88 | 94,835 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,591 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,472 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,098 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,307 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,340 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,390 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,410 |
| U.S. States By Population | 0 | - | 4.92 | 154,176 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,259 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,914 |
| US States with an Empty Map | 0 | - | 5.00 | 628,896 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,550 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,123 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,409 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,461 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,264 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,718 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,154 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,331 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,497 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,057 |
| Canada Country Quiz | 0 | - | 4.55 | 133,074 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,624 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,207 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,424 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,610 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,892 |
| O Canada Lyrics | 0 | - | 4.47 | 51,070 |
| Flags of North and South America | 0 | - | 4.99 | 377,266 |
| Belize Country Quiz | 0 | - | 4.85 | 21,098 |
| Top U.S. Universities | 0 | - | 4.15 | 145,866 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,023 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,891 |
| U.S. States by Governor | 0 | - | 4.43 | 18,115 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,769 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,781 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,842 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,690 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,767 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 65,015 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,454 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,044 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,829 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,755 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,208 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,588 |
| The Only American Country ... | 0 | - | 4.92 | 122,236 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,690 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,480 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,229 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,467 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,191 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,345 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,557 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,797 |
| Monarchies of Europe | 0 | - | 4.90 | 98,907 |
| Monarchies of Asia | 0 | - | 4.97 | 71,524 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,301 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,058 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 57,885 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,766 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,906 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,638 |
| States of Brazil | 0 | - | 4.97 | 89,775 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,756 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,680 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,916 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,283 |
| United States Country Quiz | 0 | - | 4.43 | 102,232 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,076 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,022 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,068 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,568 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,101 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,131 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,084 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,089 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,125 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,539 |
| New England States | 0 | - | 4.51 | 59,901 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,068 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,123 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,168 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,293 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,154 |
| U.S. States by Borders | 0 | - | 4.62 | 35,488 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,688 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,350 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,454 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,390 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,881 |
| Canada A-Z | 0 | - | 4.73 | 32,976 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,133 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,945 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,841 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,773 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,975 |
| Name the English Monarchs | 0 | - | 4.91 | 506,733 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,975 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,771 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,217 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,408 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,375 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,619 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,279 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,914 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,017 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,892 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,350 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,763 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,253 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,819 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,077 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,949 |
| Largest United States Airlines | 0 | - | 4.39 | 55,167 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,111 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,360 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,724 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,485 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,262 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,218 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,565 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.22 | 10,907 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,911 |
| Events in U.S. History | 0 | - | 4.41 | 28,832 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,153 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,110 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,661 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,089 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,568 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,409 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,952 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,150 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,988 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,682 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,235 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,576 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,838 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,234 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,373 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,222 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,736 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,343 |
| Canada by Picture | 0 | - | 4.25 | 19,262 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,278 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,329 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 77,048 |
| Hindu Countries | 0 | - | 4.87 | 50,599 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,054 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,890 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,615 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,660 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,614 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,387 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,544 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,724 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,651 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,800 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 37,008 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,729 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,562 |
| American Legal Vocabulary | 0 | - | 4.40 | 34,025 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,739 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,300 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,746 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,507 |
| American Founding Fathers | 0 | - | 4.42 | 23,274 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,721 |
| California Groups of Things | 0 | - | 4.26 | 45,776 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,320 |
| New York Groups of Things | 0 | - | 4.39 | 72,177 |
| People on Money - United States | 0 | - | 4.31 | 63,436 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,591 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 75,068 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,573 |
