| States of Mexico | 0 | - | 4.96 | 176,686 |
| Mexico States Map Quiz | 0 | - | 4.84 | 104,961 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,643 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,801 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,784 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,515 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,257 |
| Belize Country Quiz | 0 | - | 4.85 | 21,010 |
| US States Quiz | 0 | - | 5.00 | 16,912,380 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,743 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,149 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,227 |
| States of Brazil | 0 | - | 4.97 | 88,541 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,093 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,841 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,743 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,931 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,371 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,793 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,585 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 332,992 |
| Pixelated United States Map | 0 | - | 4.88 | 94,435 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,912 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,968 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,039 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,113 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,680 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,642 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,292 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,605 |
| U.S. States By Population | 0 | - | 4.92 | 153,723 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,678 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,579 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,477 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,320 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,775 |
| Most-Visited Countries by Canadians | 0 | - | 4.82 | 39,440 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,556 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,386 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,599 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,901 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,650 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,224 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,655 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,821 |
| US States with an Empty Map | 0 | - | 5.00 | 625,850 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,919 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,594 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,342 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,464 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,826 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,404 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,256 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,891 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,307 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,984 |
| Flags of North and South America | 0 | - | 4.99 | 374,135 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,498 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,793 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,764 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,230 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,577 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,140 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,656 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,479 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,070 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,851 |
| California Groups of Things | 0 | - | 4.25 | 45,522 |
| New York Groups of Things | 0 | - | 4.35 | 63,909 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,502 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,902 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,381 |
| The Only American Country ... | 0 | - | 4.92 | 121,791 |
| Guatemala Country Quiz | 0 | - | 4.63 | 25,465 |
| Honduras Country Quiz | 0 | - | 4.52 | 23,913 |
| Panama Country Quiz | 0 | - | 4.61 | 25,850 |
| Nicaragua Country Quiz | 0 | - | 4.62 | 26,614 |
| Antigua and Barbuda Country Quiz | 0 | - | 4.68 | 22,126 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,470 |
| Barbados Country Quiz | 0 | - | 4.78 | 19,802 |
| Countries with American Expatriates | 0 | - | 4.53 | 42,609 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 40,211 |
| Names of Generations | 0 | - | 4.09 | 45,161 |
| United States Country Quiz | 0 | - | 4.43 | 101,689 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 76,939 |
| Movies by State | 0 | - | 4.27 | 40,561 |
| Canada Country Quiz | 0 | - | 4.54 | 132,645 |
| Canada Cities Map Quiz | 0 | - | 4.64 | 124,327 |
| Canada A-Z | 0 | - | 4.73 | 32,886 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,512 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.75 | 60,047 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,850 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,591 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,565 |
| Name a Valid African Country | 0 | - | 4.98 | 154,321 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,468 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,370 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,355 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,502 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 52,927 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,791 |
| Famous Mexicans and Mexican-Americans | 0 | - | 4.15 | 16,951 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,075 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,579 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,968 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,695 |
| Chile Country Quiz | 0 | - | 4.77 | 40,119 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,903 |
| Peru Country Quiz | 0 | - | 4.54 | 48,745 |
| Central American Countries | 0 | - | 4.98 | 156,739 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,931 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 148,971 |
| Largest Virgin Islands | 0 | - | 4.24 | 5,306 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,786 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,200 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,516 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,470 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 747,941 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,524 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,956 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,015 |
| Random U.S. City to State | 0 | - | 4.45 | 76,496 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,172 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 209,790 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,425 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,984 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,029 |
| Top 10 Non-English Languages of Los Angeles | 0 | - | 4.43 | 59,951 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,389 |
| New England States | 0 | - | 4.51 | 59,830 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,880 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,032 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,901 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,103 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,996 |
| U.S. States by Borders | 0 | - | 4.61 | 35,369 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,537 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,137 |
| Most Valuable Crops by U.S. State | 0 | - | 4.40 | 39,132 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,267 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,618 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,230 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,833 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,311 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,564 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,332 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,892 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,997 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,845 |
| Italian Foods | 0 | - | 4.30 | 72,917 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,307 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,051 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,199 |
| Georgia ... or Georgia? | 0 | - | 4.67 | 76,855 |
| Canada or Africa by Area | 0 | - | 4.78 | 18,410 |
| South American Physical Geography | 0 | - | 4.58 | 18,366 |
| Which South American Country? | 0 | - | 4.69 | 51,999 |
| Top U.S. Universities | 0 | - | 4.15 | 145,346 |
| Largest United States Airlines | 0 | - | 4.39 | 55,068 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,264 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,963 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 51,967 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,716 |
| U.S. States by Governor | 0 | - | 4.43 | 18,078 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,714 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,705 |
| Florida Pro Sport Teams | 0 | - | 4.61 | 11,863 |
| Events in U.S. History | 0 | - | 4.41 | 28,705 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,982 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,877 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,529 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,235 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,510 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,513 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,138 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,069 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,092 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,839 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,910 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,572 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,667 |
| Musical Acts by State | 0 | - | 4.05 | 19,592 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,905 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,839 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,342 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,849 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,952 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,339 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,523 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,791 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,737 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,970 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,323 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,692,466 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,294 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,180 |
| O Canada Lyrics | 0 | - | 4.47 | 50,974 |
| NHL Hockey Teams in Canada | 0 | - | 4.35 | 35,062 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,036 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,501 |
