| U.S. Cabinet Departments | 0 | - | 4.86 | 72,878 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,797 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,383 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,346 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,026 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,645 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,651 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,906 |
| US States Quiz | 0 | - | 5.00 | 16,874,934 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,533 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,179 |
| States of Mexico | 0 | - | 4.96 | 176,094 |
| Mexico States Map Quiz | 0 | - | 4.85 | 104,734 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,942 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,642 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,491 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,048 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,225 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,043 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,095 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,789 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,988 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,543 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,989 |
| Pixelated United States Map | 0 | - | 4.87 | 94,265 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,679 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,766 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,858 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,422 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,429 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,996 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,286 |
| U.S. States By Population | 0 | - | 4.92 | 153,541 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,445 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,437 |
| US States with an Empty Map | 0 | - | 5.00 | 624,594 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,210 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,613 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,174 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,808 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,448 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,455 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,982 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,605 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,760 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,470 |
| Canada Country Quiz | 0 | - | 4.54 | 132,479 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 124,206 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,036 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,205 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,910 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,026 |
| O Canada Lyrics | 0 | - | 4.47 | 50,943 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,357 |
| Flags of North and South America | 0 | - | 4.99 | 373,097 |
| Belize Country Quiz | 0 | - | 4.85 | 20,973 |
| Top U.S. Universities | 0 | - | 4.15 | 145,130 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 45,605 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,661 |
| U.S. States by Governor | 0 | - | 4.43 | 18,063 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,695 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,680 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,207 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,531 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,632 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,745 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,301 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,768 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,700 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,419 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,967 |
| The Only American Country ... | 0 | - | 4.92 | 121,606 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,123 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,362 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,054 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,344 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,100 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,096 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,465 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,132 |
| Monarchies of Europe | 0 | - | 4.90 | 98,153 |
| Monarchies of Asia | 0 | - | 4.97 | 71,087 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,887 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,605 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,418 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,863 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,424 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,912 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,055 |
| States of Brazil | 0 | - | 4.97 | 88,050 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,525 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,584 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,131 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,173 |
| United States Country Quiz | 0 | - | 4.43 | 101,511 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,879 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,351 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,830 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,465 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,790 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,735 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,041 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,038 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,883 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,348 |
| New England States | 0 | - | 4.51 | 59,808 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,812 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,010 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,815 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,005 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,927 |
| U.S. States by Borders | 0 | - | 4.61 | 35,315 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,482 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,039 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,223 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,234 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,817 |
| Canada A-Z | 0 | - | 4.73 | 32,835 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,991 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,117 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,011 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,410 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,263 |
| Name the English Monarchs | 0 | - | 4.91 | 502,661 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,768 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,964 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,976 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,448 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,767 |
| Hindu Countries | 0 | - | 4.86 | 50,150 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,272 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,408 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,566 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,594 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,717 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,714 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,191 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,510 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,076 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,613 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,286 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,234 |
| Largest United States Airlines | 0 | - | 4.39 | 55,028 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,299 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,333 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,103 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,793 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,837 |
| U.S. Political Figures by Picture #1 | 0 | - | 4.14 | 26,158 |
| U.S. Political Figures by Picture #2 | 0 | - | 4.10 | 15,522 |
| Female Political Figures by Picture - U.S. | 0 | - | 4.20 | 10,863 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,843 |
| Events in U.S. History | 0 | - | 4.41 | 28,672 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,927 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,795 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,485 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,187 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,500 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,018 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,797 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,819 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,874 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,607 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,580 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,494 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,774 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,847 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,304 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,704 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,157 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,136 |
| Canada by Picture | 0 | - | 4.25 | 18,896 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,729 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,814 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,773 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,021 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,084 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,093 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,086 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,778 |
| U.S. Geography by Letter - P | 0 | - | 4.38 | 53,862 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 53,329 |
| U.S. Geography by Letter - L | 0 | - | 4.04 | 41,134 |
| U.S. Geography by Letter - G | 0 | - | 4.13 | 39,305 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 40,127 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,318 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,916 |
| U.S. Cities by Picture #1 | 0 | - | 4.36 | 34,559 |
| Cities by Picture #2 | 0 | - | 4.19 | 35,142 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,166 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,454 |
| American Founding Fathers | 0 | - | 4.42 | 23,224 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,445 |
| California Groups of Things | 0 | - | 4.25 | 45,491 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,264 |
| New York Groups of Things | 0 | - | 4.35 | 63,701 |
| People on Money - United States | 0 | - | 4.31 | 63,344 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,459 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,846 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,522 |
