| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,676 |
| States of Mexico | 0 | - | 4.96 | 176,814 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,151 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,124 |
| Mexico Country Quiz | 0 | - | 4.49 | 72,527 |
| US States Quiz | 0 | - | 5.00 | 16,920,176 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.92 | 54,193 |
| Brazil States Map Quiz | 0 | - | 4.86 | 48,255 |
| States of Brazil | 0 | - | 4.97 | 88,644 |
| Colombia Country Quiz | 0 | - | 4.90 | 40,809 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,195 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,926 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 49,671 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,239 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,707 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,853 |
| US States with an Empty Map | 0 | - | 5.00 | 626,078 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,651 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,396 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,531 |
| The Trojan War | 0 | - | 4.83 | 39,801 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,265 |
| Rivers of the United States | 0 | - | 4.93 | 66,348 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,594 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,252 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,495 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,675 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,331 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,966 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,353 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,012 |
| Flags of North and South America | 0 | - | 4.99 | 374,414 |
| South America Map Quiz | 0 | - | 5.00 | 1,551,887 |
| Belize Country Quiz | 0 | - | 4.85 | 21,014 |
| Costa Rica Country Quiz | 0 | - | 4.75 | 32,237 |
| Cuba Country Quiz | 0 | - | 4.70 | 51,588 |
| Saint Vincent and the Grenadines Country Quiz | 0 | - | 4.88 | 19,246 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,200 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,597 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,238 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 130,128 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,984 |
| American Founding Fathers | 0 | - | 4.42 | 23,242 |
| People on Money - United States | 0 | - | 4.31 | 63,376 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,507 |
| 100 Most Influential Figures in U.S. History | 0 | - | 4.20 | 45,123 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,545,064 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,363 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,635 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,922 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,203 |
| The Only American Country ... | 0 | - | 4.92 | 121,827 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,282 |
| Panama Country Quiz | 0 | - | 4.61 | 25,859 |
| Dominican Republic Country Quiz | 0 | - | 4.61 | 23,483 |
| Names of Generations | 0 | - | 4.09 | 45,205 |
| American History Quotes #1 | 0 | - | 4.37 | 96,104 |
| American History Quotes #2 | 0 | - | 4.38 | 41,444 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,277 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,833 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,767 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,498 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,334 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,471 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,470 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,392 |
| U.S. Geography by Letter - B | 0 | - | 4.53 | 69,658 |
| U.S. Geography by Letter - S | 0 | - | 4.55 | 53,084 |
| History of Mexico | 0 | - | 4.58 | 15,336 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,394 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,603 |
| Countries of South America with an Empty Map | 0 | - | 4.94 | 105,108 |
| Argentina Country Quiz | 0 | - | 4.53 | 57,596 |
| Brazil Country Quiz | 0 | - | 4.52 | 101,995 |
| Brazil Cities Map Quiz | 0 | - | 4.62 | 36,716 |
| Chile Country Quiz | 0 | - | 4.75 | 40,134 |
| Ecuador Country Quiz | 0 | - | 4.60 | 31,907 |
| Peru Country Quiz | 0 | - | 4.54 | 48,761 |
| Central American Countries | 0 | - | 4.98 | 156,798 |
| Caribbean Countries and Territories | 0 | - | 4.81 | 112,967 |
| Caribbean / Lesser Antilles Map Quiz | 0 | - | 4.99 | 149,088 |
| Grenada Country Quiz | 0 | - | 4.62 | 18,961 |
| Saint Kitts and Nevis Country Quiz | 0 | - | 4.57 | 18,794 |
| Trinidad and Tobago Country Quiz | 0 | - | 4.61 | 22,210 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,573 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,501 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,121 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 748,087 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,566 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,341 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,889 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,865 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,133 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,065 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 244,885 |
| Pixelated United States Map | 0 | - | 4.88 | 94,484 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,957 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,001 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,486 |
| U.S. Federal Agency Acronyms | 0 | - | 4.50 | 80,039 |
| All U.S. Supreme Court Justices | 0 | - | 4.54 | 29,107 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,942 |
| All U.S. Supreme Court Justices Ever | 0 | - | 4.50 | 11,830 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,708,921 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,407 |
| 10 Closest Megacities to New York City | 0 | - | 4.52 | 67,398 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,139 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,393,976 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,726 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,680 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,352 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,668 |
| U.S. States By Population | 0 | - | 4.92 | 153,750 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,726 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,603 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,685,528 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,510 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,337 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,800 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,451 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,610 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,590 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,002 |
| Name the English Monarchs | 0 | - | 4.91 | 504,022 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,841 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,100 |
| South American Physical Geography | 0 | - | 4.58 | 18,367 |
| Which South American Country? | 0 | - | 4.69 | 52,003 |
| Countries that Beat Brazil | 0 | - | 4.49 | 68,826 |
| El Salvador Country Quiz | 0 | - | 4.63 | 31,774 |
| Jamaica Country Quiz | 0 | - | 4.58 | 35,151 |
| Haiti Country Quiz | 0 | - | 4.79 | 32,672 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,997 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,142 |
| Biggest Trading Partners - United States | 0 | - | 4.63 | 106,734 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,839 |
| Arms Exports - United States | 0 | - | 4.77 | 62,534 |
| U.S. Bill of Rights | 0 | - | 4.53 | 32,557 |
| State Quiz - Alaska | 0 | - | 4.42 | 42,138 |
| State Quiz - Arizona | 0 | - | 4.44 | 36,786 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,051 |
| State Quiz - California | 0 | - | 4.69 | 64,565 |
| State Quiz - Florida | 0 | - | 4.47 | 62,432 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,934 |
| Countries that Visit Florida the Most | 0 | - | 4.70 | 72,440 |
| State Quiz - Georgia | 0 | - | 4.48 | 35,621 |
| Countries Closest to Hawaii | 0 | - | 4.55 | 53,755 |
| State Quiz - Illinois | 0 | - | 4.44 | 33,438 |
| State Quiz - Kentucky | 0 | - | 4.42 | 32,531 |
| State Quiz - Minnesota | 0 | - | 4.41 | 38,865 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,270 |
| State Quiz - New York | 0 | - | 4.52 | 46,220 |
| State Quiz - New Jersey | 0 | - | 4.42 | 38,215 |
| State Quiz - Texas | 0 | - | 4.43 | 62,972 |
| Six Flags Over Texas | 0 | - | 4.78 | 63,453 |
| State Quiz - Pennsylvania | 0 | - | 4.50 | 49,117 |
| State Quiz - Tennessee | 0 | - | 4.54 | 34,232 |
| State Quiz - Virginia | 0 | - | 4.53 | 40,369 |
| State Quiz - Washington | 0 | - | 4.45 | 36,499 |
| Events in U.S. History | 0 | - | 4.41 | 28,716 |
| U.S. History A-Z #1 | 0 | - | 4.36 | 30,196 |
| Last Names in U.S. History #2 | 0 | - | 4.39 | 17,646 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.45 | 52,830 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.75 | 38,491 |
| U.S. States by Clue #1 | 0 | - | 4.51 | 39,219 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 52,994 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,902 |
| U.S. States with More Cows than People | 0 | - | 4.74 | 47,809 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,596 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,545 |
| U.S. States with Spanish Names | 0 | - | 4.50 | 87,998 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,515 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,156 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,072 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,108 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,848 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,932 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,581 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,675 |
| Tourist Attractions by U.S. State | 0 | - | 4.46 | 62,638 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,860 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,354 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,867 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,949 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,612 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,745 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,991 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,324 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,693,042 |
| O Canada Lyrics | 0 | - | 4.47 | 50,985 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,514 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,957 |
| Name that Greek Letter | 0 | - | 4.93 | 324,191 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,906 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,657 |
| Roman Emperors | 0 | - | 4.95 | 120,413 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,124 |
| U.S. Geography by Letter - C | 0 | - | 4.27 | 74,273 |
| U.S. Geography by Letter - A | 0 | - | 4.37 | 63,287 |
| U.S. Geography by Letter - D | 0 | - | 4.09 | 57,265 |
