| US States Quiz | 0 | - | 5.00 | 14,583,849 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,370 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,449 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 95,139 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 98,234 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,382 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,228 |
| U.S. States By Population | 0 | - | 4.90 | 129,242 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,396 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,523 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 77,092 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,891 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 55,143 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 39,943 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,370 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,518 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 114,958 |
| US States with an Empty Map | 0 | - | 5.00 | 548,940 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,391 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,645 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 183,121 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,126 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,391 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,202 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,793 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.89 | 88,567 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,747 |
| New England States | 0 | - | 4.53 | 52,363 |
| US States by Land Area | 0 | - | 4.59 | 48,206 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 36,010 |
| Add a Letter - Make a U.S. State | 0 | - | 4.74 | 76,003 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,679 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.79 | 37,014 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,715 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,159 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,237 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 61,957 |
| Total United States Immigration by Country | 0 | - | 4.90 | 95,928 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 182,206 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,109 |
| Longest U.S. State Borders | 0 | - | 4.62 | 33,798 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.66 | 59,370 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,790 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,707 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 48,988 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 92,059 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,649 |
| Pixelated United States Map | 0 | - | 4.91 | 81,332 |
| U.S. State Superlatives #1 | 0 | - | 4.45 | 75,011 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,081 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,394 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,415 |
| Flyover States | 0 | - | 4.51 | 27,861 |
| U.S. States With Double Letters | 0 | - | 4.64 | 4,032 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,392 |
| U.S. States by Borders | 0 | - | 4.59 | 26,120 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.45 | 64,568 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,416 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,594 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,416 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,807 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 269,962 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,687 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 456,079 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,641 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,901 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,253 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 19,719 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,378 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,868 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,351 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 99,916 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,907 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,027 |
| Mexico States Map Quiz | 0 | - | 4.85 | 89,494 |
| States of Mexico | 0 | - | 4.95 | 138,520 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,586 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 33,770 |
| Name a Valid U.S. State #2 | 0 | - | 4.64 | 68,541 |
| Name a Valid U.S. State #3 | 0 | - | 4.79 | 43,604 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,333 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,890 |
| United States Map Quiz | 0 | - | 4.98 | 3,882,663 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 51,061 |
| U.S. State Flags | 0 | - | 4.87 | 134,246 |
| U.S. States that Border Canada | 0 | - | 4.90 | 165,017 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,267 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,220 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,275 |
| Speed Capital to U.S. State | 0 | - | 4.44 | 105,699 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 37,003 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 116,577 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,285 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 104,762 |
| U.S. States with the Most Borders | 0 | - | 4.57 | 60,945 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,669 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,122 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,653 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,216,890 |
| U.S. State Symbols | 0 | - | 4.38 | 23,593 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.40 | 28,333 |
| U.S. States Without Individual Income Tax | 0 | - | 4.30 | 27,416 |
| 10 Northernmost U.S. States | 0 | - | 4.87 | 70,508 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.04 | 12,643 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.30 | 13,673 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 193,194 |
| U.S. Panhandles | 0 | - | 4.25 | 25,424 |
| Top 10 Happiest U.S. States | 0 | - | 4.37 | 18,798 |
| U.S. States with a Unique Last Letter | 0 | - | 4.14 | 19,421 |
| Hated U.S. States | 0 | - | 4.09 | 13,108 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,503 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 167,258 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 98,632 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,516,245 |
| Random U.S. States on a Map | 0 | - | 4.95 | 478,606 |
| Regions of US States | 0 | - | 4.19 | 31,377 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.39 | 28,312 |
| Top Producing U.S. States | 0 | - | 4.23 | 28,502 |
| Landmarks of U.S. States #2 | 0 | - | 4.18 | 17,745 |
| Landmarks of U.S. States #1 | 0 | - | 4.28 | 21,990 |
| U.S. States with the Highest HDI | 0 | - | 4.08 | 24,056 |
| States of Origin - American Popular Music | 0 | - | 4.17 | 9,835 |
| 1M Cities by Proximity - United States | 0 | - | 4.49 | 135,967 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 36,265 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,810 |
| United States Country Quiz | 0 | - | 4.45 | 88,024 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,143 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 71,996 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,282 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.87 | 50,603 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,411 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 121,997 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,662 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,501 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 129,977 |
| Random U.S. City to State | 0 | - | 4.43 | 65,124 |
| South America Capitals Quiz | 0 | - | 5.00 | 415,675 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 198,068 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,364,185 |
| 10 Closest Megacities to New York City | 0 | - | 4.54 | 54,290 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.65 | 1,230,707 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.18 | 119,717 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.06 | 55,970 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.55 | 30,159 |
| U.S State Capitals on the Sea | 0 | - | 4.52 | 24,981 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.49 | 29,015 |
| Boroughs of New York City | 0 | - | 4.44 | 76,418 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 100,046 |
| The Only American Country ... | 0 | - | 4.94 | 108,912 |
| Belize Country Quiz | 0 | - | 4.88 | 18,569 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 306,514 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,670 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,459 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,502 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,932 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 499,301 |
| Movies by State Quiz | 0 | - | 4.23 | 39,296 |
| U.S Cities by African-American Population | 0 | - | 4.40 | 82,541 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,371 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.36 | 233,276 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,554 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,406 |
| Brazil States Map Quiz | 0 | - | 4.84 | 38,947 |
| Europe Map Quiz | 0 | - | 5.00 | 4,258,352 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 217,239 |
| Largest United States Airlines | 0 | - | 4.38 | 51,832 |
| States of Brazil | 0 | - | 4.96 | 67,346 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 38,941 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,761 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 68,926 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,389 |
| ALL California Cities | 0 | - | 4.33 | 38,825 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,789 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 82,907 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,233 |
| Biggest Trading Partners - US | 0 | - | 4.57 | 91,638 |
| Colombia Country Quiz | 0 | - | 4.92 | 34,592 |
| Canada Country Quiz | 0 | - | 4.49 | 120,496 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,809 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 50,977 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.76 | 36,772 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,148 |
| U.S. States by Clue #1 | 0 | - | 4.46 | 32,975 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,231 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 61,850 |
| Events by U.S. State #2 | 0 | - | 4.25 | 17,771 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 67,032 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.89 | 16,984 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,294 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,065 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.44 | 39,221 |
| U.S. State Capital Etymology | 0 | - | 4.51 | 34,262 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.72 | 32,180 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,248 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,821 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 44,884 |
| Mexico Country Quiz | 0 | - | 4.48 | 65,958 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,335,101 |
| Oceania Map Quiz | 0 | - | 4.97 | 562,724 |
| Africa Map Quiz | 0 | - | 5.00 | 1,926,379 |
