| States of Mexico | 0 | - | 4.95 | 173,884 |
| Mexico States Map Quiz | 0 | - | 4.84 | 103,988 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,865 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,076 |
| Mexico Cities Map Quiz | 0 | - | 4.77 | 33,331 |
| Belize Country Quiz | 0 | - | 4.85 | 20,837 |
| US States Quiz | 0 | - | 5.00 | 16,734,959 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,597 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 53,158 |
| Brazil States Map Quiz | 0 | - | 4.85 | 47,510 |
| States of Brazil | 0 | - | 4.98 | 86,710 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,350 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,814 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,426 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,490 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,585 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,748 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,125 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,421 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,847 |
| Pixelated United States Map | 0 | - | 4.89 | 93,641 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,694 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,012 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,489 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,944 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,561 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,606 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,911 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,160 |
| U.S. States By Population | 0 | - | 4.92 | 152,531 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,602 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,989 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,727 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,841 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,018 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,523 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,176 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,340 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,606 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,821 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,780 |
| US States with an Empty Map | 0 | - | 5.00 | 619,925 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,210 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,043 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 94,986 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,177 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,108 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,045 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,860 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,269 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,619 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,830 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,474 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,568 |
| Animals of Australia | 0 | - | 4.52 | 42,190 |
| Flags of North and South America | 0 | - | 4.99 | 368,608 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,511 |
| South American Physical Geography | 0 | - | 4.58 | 18,290 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 31,978 |
| Cuba Country Quiz | 0 | - | 4.69 | 51,252 |
| Jamaica Country Quiz | 0 | - | 4.58 | 34,900 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,413 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,248 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,458 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,242 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,552 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,592 |
| The Only American Country ... | 0 | - | 4.92 | 120,911 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,465 |
| El Salvador Country Quiz | 0 | - | 4.62 | 31,528 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,261 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,738 |
| Panama Country Quiz | 0 | - | 4.61 | 25,644 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,408 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.66 | 21,954 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,259 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,668 |
| U.S. State Nicknames Quiz | 0 | - | 4.47 | 50,340 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,494 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,100 |
| United States Country Quiz | 0 | - | 4.43 | 100,789 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,668 |
| Canada Country Quiz | 0 | - | 4.55 | 131,886 |
| Canada Cities Map Quiz | 0 | - | 4.63 | 123,732 |
| Canada A-Z | 0 | - | 4.73 | 32,687 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 59,714 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,257 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,692 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,551 |
| African Great Lakes | 0 | - | 4.82 | 65,400 |
| Largest Land Animals of Africa | 0 | - | 4.36 | 12,704 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 77,986 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,215 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 68,879 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,379 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,913 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,226 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,494 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 104,311 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,186 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,248 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,414 |
| Chile Country Quiz | 0 | - | 4.75 | 39,803 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,667 |
| Peru Country Quiz | 0 | - | 4.54 | 48,390 |
| Central American Countries | 0 | - | 4.98 | 155,251 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 146,327 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,277 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,650 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,044 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,595 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,663 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 743,923 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,488 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,860 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,995 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,650 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 208,122 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,751 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,990 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 79,787 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.42 | 59,654 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,217 |
| New England States | 0 | - | 4.51 | 59,723 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,541 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,907 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,429 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,715 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,711 |
| U.S. States by Borders | 0 | - | 4.63 | 35,124 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,281 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,204 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,039 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,168 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,555 |
| Most-Visited Countries by Canadians | 0 | - | 4.77 | 39,139 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,844 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,951 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,960 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,562 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,203 |
| Georgia ... or Georgia? | 0 | - | 4.69 | 76,501 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,500 |
| Canada or Africa by Area | 0 | - | 4.77 | 18,128 |
| Which South American Country? | 0 | - | 4.69 | 51,761 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,031 |
| Top U.S. Universities | 0 | - | 4.15 | 144,261 |
| Largest United States Airlines | 0 | - | 4.39 | 54,876 |
| Lakes in the United States by Clue | 0 | - | 4.31 | 19,187 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,195 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,227 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 41,036 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,421 |
| U.S. States by Governor | 0 | - | 4.43 | 17,995 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,595 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,571 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,769 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,707 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,501 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,314 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,060 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 53,200 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 32,431 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 76,575 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,950 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 48,766 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,633 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,469 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,322 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,507 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,794 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,512 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,129 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,476 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,638 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,057 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,413 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,685 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,599 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,139 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,241 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,919 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,671 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,934 |
| O Canada Lyrics | 0 | - | 4.47 | 50,819 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 34,609 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,700 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,670 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,083 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,089 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,329 |
| Extinct Animals by Picture | 0 | - | 4.49 | 34,984 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,264 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,820 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 73,648 |
| U.S. Geography by Letter - A | 0 | - | 4.38 | 62,613 |
| U.S. Geography by Letter - D | 0 | - | 4.08 | 56,601 |
| U.S. Geography by Letter - T | 0 | - | 4.29 | 49,279 |
| U.S. Geography by Letter - P | 0 | - | 4.36 | 47,701 |
| U.S. Geography by Letter - M | 0 | - | 4.14 | 52,887 |
