| States of Mexico | 0 | - | 4.96 | 178,391 |
| Mexico States Map Quiz | 0 | - | 4.85 | 105,699 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,833 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,412 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,778 |
| Belize Country Quiz | 0 | - | 4.85 | 21,103 |
| US States Quiz | 0 | - | 5.00 | 17,005,134 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,753 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.93 | 54,930 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,650 |
| States of Brazil | 0 | - | 4.97 | 89,851 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,523 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,458 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,612 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,674 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,122 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,760 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,634 |
| Colombia Country Quiz | 0 | - | 4.90 | 41,023 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,711 |
| Pixelated United States Map | 0 | - | 4.88 | 94,847 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,616 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,487 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,842 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,113 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,331 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,351 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,402 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,432 |
| U.S. States By Population | 0 | - | 4.92 | 154,192 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,284 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,922 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,895 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,556 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,138 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,637 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,534 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,284 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,926 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,284 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,739 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,355 |
| US States with an Empty Map | 0 | - | 5.00 | 629,027 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,513 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,060 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,240 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,459 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,639 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,913 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,570 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,909 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,233 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,574 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,711 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,674 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,982 |
| Animals of Australia | 0 | - | 4.53 | 42,502 |
| Flags of North and South America | 0 | - | 4.99 | 377,382 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,163 |
| South American Physical Geography | 0 | - | 4.58 | 18,408 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,900 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,356 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,768 |
| Jamaica Country Quiz | 0 | - | 4.59 | 35,254 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,823 |
| Latin American Countries Map Quiz | 0 | - | 4.98 | 130,725 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,148 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,179 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,496 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,712 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 33,246 |
| The Only American Country ... | 0 | - | 4.92 | 122,249 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,701 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,582 |
| Honduras Country Quiz | 0 | - | 4.52 | 24,034 |
| Panama Country Quiz | 0 | - | 4.61 | 25,948 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,722 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,213 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,600 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,858 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,760 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,681 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,284 |
| United States Country Quiz | 0 | - | 4.43 | 102,247 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 77,079 |
| Canada Country Quiz | 0 | - | 4.55 | 133,085 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,632 |
| Canada A-Z | 0 | - | 4.73 | 32,977 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,226 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,668 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,200 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,904 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,421 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,884 |
| U.S. Geography by Letter - B | 0 | - | 4.54 | 70,080 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 58,066 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,965 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 44,215 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,915 |
| Countries of South America with an Empty Map | 0 | - | 4.95 | 105,536 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,823 |
| Brazil Country Quiz | 0 | - | 4.52 | 102,409 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,847 |
| Chile Country Quiz | 0 | - | 4.75 | 40,311 |
| Ecuador Country Quiz | 0 | - | 4.60 | 32,023 |
| Peru Country Quiz | 0 | - | 4.54 | 48,948 |
| Central American Countries | 0 | - | 4.98 | 157,390 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 113,631 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 150,776 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,311 |
| Grenada Country Quiz | 0 | - | 4.62 | 19,023 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,858 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,294 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 48,092 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,960 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 749,966 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 160,125 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,766 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,503 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,097 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 210,586 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 118,292 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,184 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,159 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 60,131 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,542 |
| New England States | 0 | - | 4.51 | 59,905 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,076 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,126 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,179 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,301 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,158 |
| U.S. States by Borders | 0 | - | 4.62 | 35,492 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,693 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,358 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,457 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,951 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,719 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,373 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,762 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,985 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,975 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,713 |
| African Great Lakes | 0 | - | 4.82 | 67,028 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,822 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,978 |
| Which South American Country? | 0 | - | 4.69 | 52,128 |
| Countries that Beat Brazil | 0 | - | 4.49 | 69,269 |
| Top U.S. Universities | 0 | - | 4.15 | 145,884 |
| Largest United States Airlines | 0 | - | 4.39 | 55,169 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,241 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,075 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,494 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,032 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,896 |
| U.S. States by Governor | 0 | - | 4.43 | 18,115 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,771 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,784 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,911 |
| Events in U.S. History | 0 | - | 4.41 | 28,833 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,158 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,119 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,662 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,199 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,852 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,569 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,413 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,122 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,318 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,966 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,157 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,691 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,768 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,989 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 65,018 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,458 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,053 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,702 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,291 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,576 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,840 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,832 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,247 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,373 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,450 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,755 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,347 |
| O Canada Lyrics | 0 | - | 4.47 | 51,073 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,212 |
| Georgia ... or Georgia? | 0 | - | 4.68 | 77,053 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,980 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,593 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,193 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,080 |
| Animals by Close-up Image | 0 | - | 4.42 | 219,114 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 46,033 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,503 |
| Mammals by Picture #1 | 0 | - | 4.70 | 92,492 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,512 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,634 |
