| US States Quiz | 0 | - | 5.00 | 14,604,930 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 338,607 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 99,550 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 95,263 |
| 10 Southernmost U.S. States | 0 | - | 4.84 | 98,374 |
| U.S. States with Short Names | 0 | - | 4.87 | 128,572 |
| U.S. States that Start with M | 0 | - | 4.91 | 149,384 |
| U.S. States By Population | 0 | - | 4.90 | 129,334 |
| U.S. States that Start with N | 0 | - | 4.95 | 154,537 |
| U.S. States with Longest Names | 0 | - | 4.84 | 35,595 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 77,170 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 57,951 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 55,327 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 40,036 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,470 |
| Louisiana Purchase with a Map | 0 | - | 4.94 | 35,602 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 115,104 |
| US States with an Empty Map | 0 | - | 5.00 | 549,673 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,547 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,813 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 183,370 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,157 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 70,505 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,309 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.86 | 38,859 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 88,690 |
| U.S. States with the Most Immigrants | 0 | - | 4.86 | 72,819 |
| New England States | 0 | - | 4.53 | 52,373 |
| US States by Land Area | 0 | - | 4.59 | 48,232 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 36,042 |
| Add a Letter - Make a U.S. State | 0 | - | 4.74 | 76,071 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 50,722 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,042 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 52,753 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 82,216 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 71,399 |
| Every U.S. Metro Area on a Map | 0 | - | 4.96 | 62,066 |
| Total United States Immigration by Country | 0 | - | 4.90 | 96,000 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 182,547 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 54,180 |
| Longest U.S. State Borders | 0 | - | 4.62 | 33,856 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.70 | 59,440 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.74 | 53,820 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 52,734 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 49,016 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 92,179 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,758 |
| Pixelated United States Map | 0 | - | 4.90 | 81,441 |
| U.S. State Superlatives #1 | 0 | - | 4.45 | 75,044 |
| U.S. State Superlatives #2 | 0 | - | 4.51 | 37,101 |
| Last 10 U.S. States Alphabetically | 0 | - | 4.34 | 70,455 |
| Top 10 Least Populous U.S. State Capitals | 0 | - | 4.49 | 20,422 |
| Flyover States | 0 | - | 4.51 | 27,880 |
| U.S. States With Double Letters | 0 | - | 4.64 | 4,073 |
| U.S. States Bigger than Their Neighbors | 0 | - | 4.29 | 57,428 |
| U.S. States by Borders | 0 | - | 4.59 | 26,139 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.45 | 64,609 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,523 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,802 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,584 |
| Countries that Beat the United States | 0 | - | 4.92 | 144,056 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.95 | 270,638 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 34,737 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 456,527 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,941 |
| Hawaiian Islands Map Quiz | 0 | - | 4.88 | 20,918 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 37,341 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 19,725 |
| U.S. States with the Lowest HDI | 0 | - | 4.46 | 27,390 |
| Which U.S. State - Multiple Choice | 0 | - | 4.45 | 18,888 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 99,421 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 100,016 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 56,923 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,118 |
| Mexico States Map Quiz | 0 | - | 4.85 | 89,676 |
| States of Mexico | 0 | - | 4.95 | 138,868 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,601 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 33,801 |
| Name a Valid U.S. State #2 | 0 | - | 4.64 | 68,656 |
| Name a Valid U.S. State #3 | 0 | - | 4.79 | 43,646 |
| U.S. States with the Highest Population Density | 0 | - | 4.46 | 66,344 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 48,954 |
| United States Map Quiz | 0 | - | 4.98 | 3,884,993 |
| Cartoon Versions of U.S. States | 0 | - | 4.84 | 51,167 |
| U.S. State Flags | 0 | - | 4.87 | 134,510 |
| U.S. States that Border Canada | 0 | - | 4.90 | 165,133 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,291 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,239 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.47 | 40,305 |
| Speed Capital to U.S. State | 0 | - | 4.44 | 105,758 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.53 | 37,017 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 117,195 |
| Countries Closest to Canada | 0 | - | 4.90 | 183,407 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 104,844 |
| U.S. States with the Most Borders | 0 | - | 4.56 | 60,960 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,748 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.52 | 58,143 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,660 |
| Fifty US States in One Minute | 0 | - | 4.55 | 3,220,494 |
| U.S. State Symbols | 0 | - | 4.38 | 23,599 |
| U.S. States along the Atlantic and Gulf Coast | 0 | - | 4.40 | 28,337 |
| U.S. States Without Individual Income Tax | 0 | - | 4.30 | 27,426 |
| 10 Northernmost U.S. States | 0 | - | 4.88 | 72,614 |
| Top 10 U.S. States Taller than Wide | 0 | - | 4.04 | 12,650 |
| Top 10 U.S. States Wider than Tall | 0 | - | 4.30 | 13,687 |
| Category Elimination - U.S. States #1 | 0 | - | 4.91 | 193,436 |
| U.S. Panhandles | 0 | - | 4.25 | 25,441 |
| Top 10 Happiest U.S. States | 0 | - | 4.37 | 18,801 |
| U.S. States with a Unique Last Letter | 0 | - | 4.14 | 19,441 |
| Hated U.S. States | 0 | - | 4.09 | 13,111 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 144,648 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 167,362 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 98,695 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,517,741 |
| Random U.S. States on a Map | 0 | - | 4.95 | 480,357 |
| Regions of US States | 0 | - | 4.19 | 31,386 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.39 | 28,323 |
| Top Producing U.S. States | 0 | - | 4.23 | 28,533 |
| Landmarks of U.S. States #2 | 0 | - | 4.18 | 17,751 |
| Landmarks of U.S. States #1 | 0 | - | 4.28 | 21,999 |
| U.S. States with the Highest HDI | 0 | - | 4.08 | 24,059 |
| States of Origin - American Popular Music | 0 | - | 4.17 | 9,848 |
| 1M Cities by Proximity - United States | 0 | - | 4.49 | 136,114 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 36,307 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,824 |
| United States Country Quiz | 0 | - | 4.45 | 88,148 |
| United States Landmarks Map Quiz | 0 | - | 4.55 | 38,170 |
| Busiest Air Routes from the U.S. | 0 | - | 4.46 | 72,065 |
| U.S. National Parks Quiz | 0 | - | 4.79 | 46,349 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 50,658 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.42 | 31,423 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 122,050 |
| Events by U.S. State #1 | 0 | - | 4.41 | 21,672 |
| 50 States, 50 Cities - Easy Version | 0 | - | 4.38 | 120,572 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 130,045 |
| Random U.S. City to State | 0 | - | 4.43 | 65,228 |
| South America Capitals Quiz | 0 | - | 5.00 | 416,318 |
| Countries Closest to the U. S. | 0 | - | 4.41 | 198,142 |
| US States by Borders in 30 Seconds | 0 | - | 4.76 | 2,367,501 |
| 10 Closest Megacities to New York City | 0 | - | 4.54 | 54,326 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.64 | 1,234,110 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.18 | 119,807 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.06 | 56,032 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.55 | 30,169 |
| U.S State Capitals on the Sea | 0 | - | 4.52 | 24,992 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.49 | 29,027 |
| Boroughs of New York City | 0 | - | 4.44 | 76,482 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 100,140 |
| The Only American Country ... | 0 | - | 4.94 | 108,984 |
| Belize Country Quiz | 0 | - | 4.88 | 18,592 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 306,887 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 64,750 |
| U.S. State Border Crossings | 0 | - | 4.96 | 81,611 |
| Five Biggest Immigrant Groups by Decade in the US | 0 | - | 4.82 | 32,605 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.60 | 30,957 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 500,609 |
| Movies by State Quiz | 0 | - | 4.23 | 39,308 |
| U.S Cities by African-American Population | 0 | - | 4.40 | 82,574 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,377 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.36 | 233,742 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,561 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 80,588 |
| Brazil States Map Quiz | 0 | - | 4.84 | 39,036 |
| Europe Map Quiz | 0 | - | 5.00 | 4,263,199 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 217,494 |
| Largest United States Airlines | 0 | - | 4.38 | 51,861 |
| States of Brazil | 0 | - | 4.96 | 67,535 |
| All First-Level Subdivisions of South America on a Map | 0 | - | 4.89 | 39,122 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.93 | 130,906 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 69,001 |
| 500 Biggest US Cities | 0 | - | 4.85 | 96,637 |
| ALL California Cities | 0 | - | 4.34 | 38,861 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,937 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 82,952 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.87 | 67,520 |
| Biggest Trading Partners - US | 0 | - | 4.64 | 100,035 |
| Colombia Country Quiz | 0 | - | 4.92 | 34,633 |
| Canada Country Quiz | 0 | - | 4.54 | 120,589 |
| Canada Cities Map Quiz | 0 | - | 4.65 | 108,878 |
| U.S. State Quarters Picture Quiz #1 | 0 | - | 4.44 | 50,987 |
| U.S. State Quarters Picture Quiz #2 | 0 | - | 4.76 | 36,782 |
| Cities by Picture #2 | 0 | - | 4.22 | 32,176 |
| U.S. States by Clue #1 | 0 | - | 4.46 | 32,986 |
| U.S. States with More Cows than People | 0 | - | 4.58 | 39,241 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 61,884 |
| Events by U.S. State #2 | 0 | - | 4.25 | 17,776 |
| U.S. States with Spanish Names | 0 | - | 4.48 | 67,104 |
| U.S. States with Exactly One Major Pro Sports Team | 0 | - | 3.89 | 16,993 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 60,332 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 58,117 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.44 | 39,245 |
| U.S. State Capital Etymology | 0 | - | 4.51 | 34,285 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.72 | 32,201 |
| Countries Bordering Brazil | 0 | - | 4.96 | 123,313 |
| Most-Visited Countries by Canadians | 0 | - | 4.79 | 37,831 |
| Countries That Visit Brazil The Most | 0 | - | 4.95 | 44,945 |
| Mexico Country Quiz | 0 | - | 4.48 | 66,008 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,336,174 |
| Oceania Map Quiz | 0 | - | 4.97 | 563,452 |
| Africa Map Quiz | 0 | - | 5.00 | 1,928,048 |
