| U.S. Cabinet Departments | 0 | - | 4.86 | 73,045 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,565 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,529 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,872 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,682 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,300 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,133 |
| US States Quiz | 0 | - | 5.00 | 16,961,070 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,611 |
| States of Mexico | 0 | - | 4.96 | 177,616 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,439 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,332 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,149 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,275 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,764 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,592 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,236 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,950 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,885 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,766 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,498 |
| Pixelated United States Map | 0 | - | 4.88 | 94,652 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,260 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,236 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,786 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 112,003 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,021 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,663 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,024 |
| U.S. States By Population | 0 | - | 4.92 | 153,960 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,986 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,756 |
| US States with an Empty Map | 0 | - | 5.00 | 627,444 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,709 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,442 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,954 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,470 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,819 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,249 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,330 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,990 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,737 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,968 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,318 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,110 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,278 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,917 |
| Canada Country Quiz | 0 | - | 4.55 | 132,890 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,499 |
| Canada A-Z | 0 | - | 4.73 | 32,929 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,774 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,888 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,151 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,644 |
| O Canada Lyrics | 0 | - | 4.47 | 51,030 |
| Flags of North and South America | 0 | - | 4.99 | 375,834 |
| Belize Country Quiz | 0 | - | 4.85 | 21,058 |
| Top U.S. Universities | 0 | - | 4.15 | 145,625 |
| U.S. States by Governor | 0 | - | 4.43 | 18,106 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,741 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,753 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,934 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,791 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,110 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 643,112 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,050 |
| The Only American Country ... | 0 | - | 4.92 | 122,043 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,496 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,419 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,446 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,411 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,133 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,315 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,564 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,452 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,611 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,738 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,506 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,590 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,990 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,434 |
| People on Money - United States | 0 | - | 4.31 | 63,404 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,175 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,455 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,514 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,553 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,602 |
| Monarchies of Europe | 0 | - | 4.90 | 98,632 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,250 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,876 |
| Monarchies of Asia | 0 | - | 4.97 | 71,381 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,177 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,638 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,519 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,433 |
| States of Brazil | 0 | - | 4.97 | 89,189 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,667 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,643 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,260 |
| United States Country Quiz | 0 | - | 4.43 | 101,995 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,022 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,909 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,614 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,227 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,330 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,095 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,069 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,073 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,045 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,489 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,990 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,089 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,030 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,221 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,086 |
| U.S. States by Borders | 0 | - | 4.61 | 35,432 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,637 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,256 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,401 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,800 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,456 |
| Canadian Islands on the Map | 0 | - | 4.40 | 20,083 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,598 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,548 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,108 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,408 |
| Name the English Monarchs | 0 | - | 4.91 | 505,348 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,913 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,623 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,150 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,543 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,021 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,017 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,288 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,764 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,123 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,787 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,905 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,843 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,304 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,686 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,213 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,747 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,815 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,748 |
| Largest United States Airlines | 0 | - | 4.39 | 55,122 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,844 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,351 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,018 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,280 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,194 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,718 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,799 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,859 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,890 |
| Events in U.S. History | 0 | - | 4.41 | 28,781 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,070 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 65,997 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,579 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,297 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,714 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,543 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,296 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,219 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,896 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,048 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,632 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,718 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,941 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,400 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,400 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,364 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,555 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,819 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,115 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,346 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,209 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,493 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,251 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,155 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,958 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,501 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,674 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,244 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,543 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,486 |
| American Founding Fathers | 0 | - | 4.42 | 23,259 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,643 |
| California Groups of Things | 0 | - | 4.26 | 45,704 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,305 |
| New York Groups of Things | 0 | - | 4.39 | 71,567 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,558 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,998 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,554 |
| Flyover States | 0 | - | 4.52 | 29,575 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,221 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,339 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,429 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,163 |
