| Countries Closest to Canada | 0 | - | 4.90 | 197,398 |
| Flags of North and South America | 0 | - | 4.99 | 367,676 |
| US States Quiz | 0 | - | 5.00 | 16,709,458 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,358 |
| O Canada Lyrics | 0 | - | 4.47 | 50,790 |
| States of Mexico | 0 | - | 4.95 | 173,451 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,851 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,107 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,689 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,233 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,072 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,188 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,550 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,665 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,429 |
| Pixelated United States Map | 0 | - | 4.89 | 93,525 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,523 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,907 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,327 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,786 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,411 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,458 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,728 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,974 |
| U.S. States By Population | 0 | - | 4.92 | 152,413 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,457 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,897 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,781 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,927 |
| Canada Country Quiz | 0 | - | 4.54 | 131,763 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,640 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,820 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,460 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,643 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,640 |
| US States with an Empty Map | 0 | - | 5.00 | 619,130 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,130 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,962 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,068 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,123 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,786 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,001 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,827 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,904 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,696 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,122 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,566 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,765 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,082 |
| Belize Country Quiz | 0 | - | 4.85 | 20,811 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,206 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,564 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,587 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,943 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,113 |
| Flags of Oceania | 0 | - | 5.00 | 255,407 |
| The Only American Country ... | 0 | - | 4.92 | 120,799 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,379 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,276 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,481 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,082 |
| United States Country Quiz | 0 | - | 4.43 | 100,645 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,614 |
| Canada A-Z | 0 | - | 4.73 | 32,654 |
| Ontario Cities Map Quiz | 0 | - | 4.64 | 19,347 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,940 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,859 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,665 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,462 |
| Name that Historical Figure #1 | 0 | - | 4.63 | 335,596 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,125 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,552 |
| U.S. Geography by Letter - S | 0 | - | 4.54 | 52,090 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,003 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,319 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,018 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,415 |
| States of Brazil | 0 | - | 4.98 | 86,445 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,380 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,452 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 207,931 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,809 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,756 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,606 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,203 |
| Washington State by Picture | 0 | - | 4.26 | 7,686 |
| New England States | 0 | - | 4.51 | 59,711 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,500 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,889 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,353 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,671 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,672 |
| U.S. States by Borders | 0 | - | 4.63 | 35,088 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,254 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,151 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,002 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,578 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,528 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,088 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,127 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,100 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,296 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,353 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,921 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,181 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,878 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,371 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,493 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,565 |
| Top U.S. Universities | 0 | - | 4.15 | 144,138 |
| Largest United States Airlines | 0 | - | 4.39 | 54,845 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,328 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,027 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,772 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,835 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,116 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,557 |
| U.S. States by Governor | 0 | - | 4.43 | 17,984 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,581 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,557 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,761 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,672 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,435 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,292 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,040 |
| States of Origin - American Popular Music | 0 | - | 4.22 | 10,622 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,592 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,405 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,775 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,465 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,591 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,398 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,671 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,064 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,236 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,213 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,565 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,898 |
| Canada by Picture | 0 | - | 4.25 | 18,249 |
| International Footballers by Picture | 0 | - | 4.50 | 54,799 |
| Name that Historical Figure #2 | 0 | - | 4.43 | 282,740 |
| Name that Historical Figure #5 | 0 | - | 4.43 | 106,673 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,440 |
| U.S. Geography by Letter - C | 0 | - | 4.26 | 73,360 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,338 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,331 |
| U.S. Geography by Letter - T | 0 | - | 4.27 | 49,023 |
| U.S. Geography by Letter - P | 0 | - | 4.34 | 47,408 |
| U.S. Geography by Letter - M | 0 | - | 4.13 | 52,617 |
| U.S. Geography by Letter - L | 0 | - | 4.03 | 40,379 |
| U.S. Geography by Letter - G | 0 | - | 4.12 | 38,623 |
| U.S. Geography By Letter - H | 0 | - | 4.35 | 39,362 |
| American Legal Vocabulary | 0 | - | 4.40 | 33,797 |
| U.S. Cities by Picture #1 | 0 | - | 4.37 | 34,363 |
| Cities by Picture #2 | 0 | - | 4.19 | 34,946 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 40,251 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,368 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,181 |
| American Founding Fathers | 0 | - | 4.41 | 23,080 |
| Famous People from California by Picture | 0 | - | 4.32 | 36,156 |
| California Groups of Things | 0 | - | 4.25 | 45,280 |
| Hawaiian Islands Map Quiz | 0 | - | 4.78 | 22,206 |
| New York Groups of Things | 0 | - | 4.38 | 59,948 |
| People on Money - United States | 0 | - | 4.31 | 63,210 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,256 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 44,742 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.35 | 74,616 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.52 | 21,467 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 52,474 |
| Flyover States | 0 | - | 4.52 | 29,404 |
| U.S. States With Double Letters | 0 | - | 4.54 | 23,932 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.27 | 75,834 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,201 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,982 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,421 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,510 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,287 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,486 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.39 | 128,013 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,622 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,445 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,577 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,106 |
| Top 10 Least-Forested U.S. States | 0 | - | 4.50 | 46,335 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,431 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,568 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,421 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,503 |
| Oscar Nominated Actors by Picture #1 | 0 | - | 4.42 | 164,473 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,623 |
| Famous Australians by Picture | 0 | - | 4.25 | 28,613 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,909 |
| Mexican Foods | 0 | - | 4.07 | 14,611 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,486 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,223 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,700 |
| Panama Country Quiz | 0 | - | 4.61 | 25,615 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,383 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,230 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,648 |
