| California A-Z | 0 | - | 4.49 | 28,843 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,629 |
| Random U.S. States on a Map | 0 | - | 4.96 | 630,226 |
| New York City A-Z | 0 | - | 4.18 | 32,379 |
| US States Quiz | 0 | - | 5.00 | 16,993,040 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,837 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,472 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,195 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,697 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,628 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,150 |
| Chicago A-Z | 0 | - | 4.25 | 15,551 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,070 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,314 |
| US States with an Empty Map | 0 | - | 5.00 | 628,584 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,067 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,261 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,293 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,331 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,350 |
| U.S. States By Population | 0 | - | 4.92 | 154,129 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,209 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,881 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,071 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,856 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,535 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,084 |
| U.S. Senators by State | 0 | - | 4.44 | 40,104 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,039 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,220 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,670 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,818 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,645 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,983 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,624 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,072 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,918 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,974 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,417 |
| Vietnam War Countries | 0 | - | 4.82 | 94,606 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,454 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,023 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,066 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,099 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,278 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,194 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,542 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,804 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,984 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,433 |
| U.S. State Flags | 0 | - | 4.89 | 172,888 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,096 |
| U.S. States that Border Canada | 0 | - | 4.91 | 186,640 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,500 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,508 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,399 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,816 |
| Which City in California? | 0 | - | 4.56 | 32,157 |
| Monarchies of Europe | 0 | - | 4.90 | 98,856 |
| Monarchies of Asia | 0 | - | 4.97 | 71,495 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,933 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,882 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,719 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,555,355 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,424 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,576 |
| States that Beat California | 0 | - | 4.54 | 63,875 |
| States that Beat Texas | 0 | - | 4.58 | 44,515 |
| States that Beat New York | 0 | - | 4.50 | 45,288 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,801 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,876 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,337 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,402 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,694 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,949 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,867 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,553 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,708 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,390 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,420 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,673 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,320 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,234 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,825 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,864 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,773 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,732 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,609 |
| Scotland A-Z | 0 | - | 4.73 | 41,458 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,466 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 335,327 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,330 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,726 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,810 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,986 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,461 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,183 |
| California... or Florida? | 0 | - | 4.60 | 51,845 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,682 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,761 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,997 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,438 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,031 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,817 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,813 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,029 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,640 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,311 |
| Which City in Texas? | 0 | - | 4.45 | 25,158 |
| Which City in Florida? | 0 | - | 4.61 | 11,031 |
| Hindu Countries | 0 | - | 4.87 | 50,570 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,058 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,207 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,054 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,986 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,181 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,530 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,434 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,294 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,642 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,462 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,390 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,692,834 |
| Pixelated United States Map | 0 | - | 4.88 | 94,805 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,398,325 |
| States that Beat Florida | 0 | - | 4.32 | 40,996 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,331 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,416 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,999 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,572 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,103 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,968 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,839 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,563 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,122 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,586 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,190 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,537 |
| Russia A-Z | 0 | - | 4.46 | 27,314 |
| Australia A-Z | 0 | - | 4.54 | 50,137 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,409 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,253 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,462 |
| Asia Map Quiz | 0 | - | 4.99 | 925,008 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,181 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,000 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,354 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,239 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,914 |
| Hawaiian Islands | 0 | - | 4.83 | 42,948 |
| Rivers of the United States | 0 | - | 4.93 | 66,650 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,821 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,942 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,124 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,207 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,369 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,118 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,073 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.44 | 70,582 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,771 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,643 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 59,642 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,265 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,977 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,570 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,834 |
| New England States | 0 | - | 4.51 | 59,894 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,138 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,054 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,541 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,117 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,138 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,280 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,138 |
| U.S. States by Borders | 0 | - | 4.62 | 35,476 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 188,795 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 635,578 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,679 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,333 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,219 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,264 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,445 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,930 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,219 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,827 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,459 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,513 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,861 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,361 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,263 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,582 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,059 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,267 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,373 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,877 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,087 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,121 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,696 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,117 |
