| Countries Closest to Canada | 0 | - | 4.90 | 197,376 |
| Flags of North and South America | 0 | - | 4.99 | 367,447 |
| US States Quiz | 0 | - | 5.00 | 16,705,420 |
| States of Mexico | 0 | - | 4.95 | 173,393 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,824 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,031 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,675 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,202 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,003 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,536 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,643 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,312 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,413 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,095 |
| Pixelated United States Map | 0 | - | 4.89 | 93,507 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,500 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,883 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,292 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,755 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,385 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,430 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,693 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,943 |
| U.S. States By Population | 0 | - | 4.92 | 152,394 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,426 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,881 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,769 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,901 |
| Canada Country Quiz | 0 | - | 4.54 | 131,742 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,628 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,812 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,440 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,605 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,609 |
| US States with an Empty Map | 0 | - | 5.00 | 618,968 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,114 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,950 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,344 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,750 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,977 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,766 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,886 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,674 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,089 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,557 |
| O Canada Lyrics | 0 | - | 4.47 | 50,787 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,056 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,119 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,589 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,074 |
| Belize Country Quiz | 0 | - | 4.85 | 20,809 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,124 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,555 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,180 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,772 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,088 |
| Flags of Oceania | 0 | - | 5.00 | 255,303 |
| The Only American Country ... | 0 | - | 4.92 | 120,778 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,362 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,104 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,006 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,398 |
| States of Brazil | 0 | - | 4.98 | 86,421 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,271 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,478 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,079 |
| United States Country Quiz | 0 | - | 4.43 | 100,616 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,609 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,415 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,774 |
| Washington State by Picture | 0 | - | 4.26 | 7,686 |
| Canada A-Z | 0 | - | 4.73 | 32,653 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,544 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,905 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,845 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,662 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,436 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,081 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,115 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,543 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,085 |
| Mexico Country Quiz | 0 | - | 4.49 | 71,992 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,314 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,343 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,916 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,173 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,864 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,355 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,470 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,548 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,268 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,308 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,751 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,806 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,899 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,527 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,747 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,598 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,201 |
| New England States | 0 | - | 4.51 | 59,709 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,664 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,427 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,481 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,887 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,284 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,035 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,340 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,653 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,668 |
| U.S. States by Borders | 0 | - | 4.63 | 35,080 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,248 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,141 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,589 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,392 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,996 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,770 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,393 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,668 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,044 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,234 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,872 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,519 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,558 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,430 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,354 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,331 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,324 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 49,016 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,402 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,614 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,369 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,611 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,352 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,079 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,288 |
| Top U.S. Universities | 0 | - | 4.15 | 144,104 |
| Largest United States Airlines | 0 | - | 4.39 | 54,838 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,986 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,793 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,357 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,943 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,100 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 40,052 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,361 |
| U.S. States by Governor | 0 | - | 4.43 | 17,984 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,575 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,174 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,552 |
| American Founding Fathers | 0 | - | 4.41 | 23,074 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,145 |
| California Groups of Things | 0 | - | 4.25 | 45,277 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,758 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,206 |
| New York Groups of Things | 0 | - | 4.38 | 59,945 |
| People on Money - United States | 0 | - | 4.31 | 63,207 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,247 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,735 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,612 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,464 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 52,295 |
| Flyover States | 0 | - | 4.52 | 29,400 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,926 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,823 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,199 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,981 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,419 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,495 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,280 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,484 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 127,997 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,612 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,437 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,566 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,096 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,326 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,420 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,425 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,513 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,563 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,553 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,389 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,894 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,852 |
| Canada by Picture | 0 | - | 4.25 | 18,228 |
| International Footballers by Picture | 0 | - | 4.50 | 54,774 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,686 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,660 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,478 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,217 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,695 |
| Panama Country Quiz | 0 | - | 4.61 | 25,609 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,376 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,224 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,647 |
| Who Did that Motown Song? | 0 | - | 4.48 | 13,019 |
| Regions of U.S. States | 0 | - | 4.37 | 43,481 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,343 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,495 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,518 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 28,764 |
