| States of Mexico | 0 | - | 4.96 | 176,218 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,789 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,582 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,184 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,451 |
| Belize Country Quiz | 0 | - | 4.85 | 20,982 |
| US States Quiz | 0 | - | 5.00 | 16,882,806 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,150 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,971 |
| Brazil States Map Quiz | 0 | - | 4.85 | 48,101 |
| States of Brazil | 0 | - | 4.97 | 88,200 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,972 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,691 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,566 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,185 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,890 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,256 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,423 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,734 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,268 |
| Pixelated United States Map | 0 | - | 4.87 | 94,300 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,724 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,803 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,829 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,932 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,469 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,482 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,065 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,351 |
| U.S. States By Population | 0 | - | 4.92 | 153,579 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,495 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,462 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,344 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,231 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,650 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,401 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,394 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,595 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,603 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,478 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,519 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,643 |
| US States with an Empty Map | 0 | - | 5.00 | 624,860 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,794 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,506 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,106 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,263 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,030 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,682 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,693 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,121 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,921 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,848 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,191 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,214 |
| Animals by Skeleton Image | 0 | - | 4.81 | 46,526 |
| Animals of Australia | 0 | - | 4.52 | 42,332 |
| Flags of North and South America | 0 | - | 4.99 | 373,309 |
| South America Map Quiz | 0 | - | 5.00 | 1,550,149 |
| South American Physical Geography | 0 | - | 4.58 | 18,356 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,725 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,199 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,525 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,090 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,620 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,389 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,838 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,456 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,830 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,962 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,276 |
| The Only American Country ... | 0 | - | 4.92 | 121,651 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,150 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,431 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,885 |
| Panama Country Quiz | 0 | - | 4.61 | 25,811 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,590 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,097 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,441 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,778 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,535 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,589 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,186 |
| United States Country Quiz | 0 | - | 4.43 | 101,553 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,899 |
| Canada Country Quiz | 0 | - | 4.55 | 132,514 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,233 |
| Canada A-Z | 0 | - | 4.73 | 32,843 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,993 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,768 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,104 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,529 |
| African Great Lakes | 0 | - | 4.82 | 66,286 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,758 |
| Nile River Basin Countries on a Map | 0 | - | 4.95 | 50,684 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,077 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,216 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,434 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,880 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,947 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,354 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,579 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,959 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,512 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,855 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,655 |
| Chile Country Quiz | 0 | - | 4.77 | 40,077 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,866 |
| Peru Country Quiz | 0 | - | 4.54 | 48,673 |
| Central American Countries | 0 | - | 4.98 | 156,508 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,530 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,303 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,940 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,759 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,171 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,351 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,288 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,308 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,366 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 81,881 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,853 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,914 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,548 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,058 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,832 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,991 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,901 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,355 |
| New England States | 0 | - | 4.51 | 59,815 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,827 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,015 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,834 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,021 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,940 |
| U.S. States by Borders | 0 | - | 4.61 | 35,329 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,488 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,052 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,232 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,553 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,124 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,124 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,411 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,477 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,781 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,477 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,795 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,767 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,374 |
| Which South American Country? | 0 | - | 4.69 | 51,952 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,667 |
| Top U.S. Universities | 0 | - | 4.15 | 145,178 |
| Largest United States Airlines | 0 | - | 4.39 | 55,038 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,220 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,075 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,846 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 49,460 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,667 |
| U.S. States by Governor | 0 | - | 4.43 | 18,063 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,702 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,684 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,847 |
| Events in U.S. History | 0 | - | 4.41 | 28,679 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,941 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,812 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,495 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,192 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,321 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,507 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,035 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,047 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,041 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,806 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,840 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,541 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,638 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,881 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,769 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,311 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,781 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,698 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,751 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,504 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,777 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,709 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,868 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,313 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,690,271 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,194 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,148 |
| O Canada Lyrics | 0 | - | 4.47 | 50,947 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,994 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,986 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,892 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,971 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,660 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,247 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,858 |
| Top 15 Countries with the Most Cows | 0 | - | 4.74 | 107,037 |
| African Physical Geography | 0 | - | 4.51 | 31,711 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,097 |
