| U.S. Cabinet Departments | 0 | - | 4.86 | 73,033 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,551 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,523 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,859 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,666 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,287 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,128 |
| US States Quiz | 0 | - | 5.00 | 16,958,335 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,602 |
| States of Mexico | 0 | - | 4.96 | 177,558 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,431 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,319 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,132 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,250 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,710 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,582 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,202 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,946 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,860 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,763 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,399 |
| Pixelated United States Map | 0 | - | 4.88 | 94,639 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,242 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,220 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,764 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,973 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,989 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,637 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,988 |
| U.S. States By Population | 0 | - | 4.92 | 153,945 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,970 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,743 |
| US States with an Empty Map | 0 | - | 5.00 | 627,362 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,696 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,437 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,948 |
| Famous Canadians by Picture | 0 | - | 4.39 | 49,467 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,815 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,247 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,324 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,952 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,719 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,954 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,296 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,087 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,263 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,907 |
| Canada Country Quiz | 0 | - | 4.55 | 132,873 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,490 |
| Canada A-Z | 0 | - | 4.73 | 32,928 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,743 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,871 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,987 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,629 |
| O Canada Lyrics | 0 | - | 4.47 | 51,029 |
| Flags of North and South America | 0 | - | 4.99 | 375,730 |
| Belize Country Quiz | 0 | - | 4.85 | 21,057 |
| Top U.S. Universities | 0 | - | 4.15 | 145,608 |
| U.S. States by Governor | 0 | - | 4.43 | 18,104 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,738 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,748 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,933 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,790 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,042 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,998 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,045 |
| The Only American Country ... | 0 | - | 4.92 | 122,036 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,488 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,411 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,441 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,403 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 50,130 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 54,309 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,561 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,448 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,606 |
| U.S. Geography by Letter - R | 0 | - | 4.22 | 36,721 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,501 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,566 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,988 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,433 |
| People on Money - United States | 0 | - | 4.31 | 63,402 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,173 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,446 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,514 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,525 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,585 |
| Monarchies of Europe | 0 | - | 4.90 | 98,601 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,207 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,865 |
| Monarchies of Asia | 0 | - | 4.97 | 71,369 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,164 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,632 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,499 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,420 |
| States of Brazil | 0 | - | 4.97 | 89,157 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,660 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,642 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,253 |
| United States Country Quiz | 0 | - | 4.43 | 101,982 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,018 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,895 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,582 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,211 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,308 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,090 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,069 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,068 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,038 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,484 |
| New England States | 0 | - | 4.51 | 59,872 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,981 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,087 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,021 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,210 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,081 |
| U.S. States by Borders | 0 | - | 4.61 | 35,427 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,630 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,249 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,395 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,797 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,441 |
| Canadian Islands on the Map | 0 | - | 4.40 | 20,082 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,580 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,528 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,028 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,345 |
| Name the English Monarchs | 0 | - | 4.91 | 505,235 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,912 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,617 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,145 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,538 |
| U.S. Geography by Letter - N | 0 | - | 3.80 | 53,015 |
| U.S. Geography by Letter - E | 0 | - | 3.75 | 49,014 |
| U.S. Geography by Letter - F | 0 | - | 3.84 | 45,286 |
| U.S. Geography by Letter - O | 0 | - | 3.52 | 41,762 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,114 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,782 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,900 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,839 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,301 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,674 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,209 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,741 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,796 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,731 |
| Largest United States Airlines | 0 | - | 4.39 | 55,120 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,825 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,351 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,971 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,266 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,181 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,692 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,792 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,833 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,888 |
| Events in U.S. History | 0 | - | 4.41 | 28,777 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,066 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 65,992 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,576 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,292 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,707 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,541 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,269 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,212 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,894 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,042 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,631 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,717 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,941 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,396 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,389 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,319 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,555 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,817 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,104 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,341 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,967 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,480 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,250 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,151 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,951 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,497 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,674 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,240 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,533 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,483 |
| American Founding Fathers | 0 | - | 4.42 | 23,257 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,638 |
| California Groups of Things | 0 | - | 4.26 | 45,701 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,305 |
| New York Groups of Things | 0 | - | 4.39 | 71,509 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,555 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,991 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,554 |
| Flyover States | 0 | - | 4.52 | 29,571 |
| U.S. States With Double Letters | 0 | - | 4.55 | 24,221 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.28 | 76,338 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,425 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,160 |
