| California A-Z | 0 | - | 4.49 | 28,819 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,481 |
| Random U.S. States on a Map | 0 | - | 4.96 | 628,684 |
| New York City A-Z | 0 | - | 4.18 | 32,349 |
| US States Quiz | 0 | - | 5.00 | 16,944,826 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,462 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,127 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,073 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,468 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,051 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,004 |
| United States Map Quiz | 0 | - | 4.98 | 4,166,045 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,127 |
| US States with an Empty Map | 0 | - | 5.00 | 626,880 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,664 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,889 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 113,896 |
| U.S. States with Short Names | 0 | - | 4.91 | 149,512 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,868 |
| U.S. States By Population | 0 | - | 4.92 | 153,877 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,869 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,684 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,876 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,634 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,398 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,895 |
| U.S. Senators by State | 0 | - | 4.44 | 40,034 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 160,406 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,020 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,498 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,721 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,509 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,838 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,135 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,935 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,884 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,619 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,096 |
| Vietnam War Countries | 0 | - | 4.82 | 94,458 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,066 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,684 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 508,612 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,616 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,993 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,732 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,533 |
| Chicago A-Z | 0 | - | 4.25 | 15,533 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,531 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,289 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,314 |
| U.S. State Flags | 0 | - | 4.89 | 171,847 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,838 |
| U.S. States that Border Canada | 0 | - | 4.91 | 185,952 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,436 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 209,784 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,007 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,515 |
| Which City in California? | 0 | - | 4.56 | 32,111 |
| Monarchies of Europe | 0 | - | 4.90 | 98,511 |
| Monarchies of Asia | 0 | - | 4.97 | 71,333 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,117 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,735 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,708 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,391 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,548,809 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 221,766 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,887 |
| States that Beat California | 0 | - | 4.54 | 63,764 |
| States that Beat Texas | 0 | - | 4.58 | 44,437 |
| States that Beat New York | 0 | - | 4.50 | 45,172 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,762 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,143 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,597 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,815 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,314 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,461 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,211 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,393 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,373 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,035 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 245,412 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,084 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,958 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,204 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,539 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,510 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,440 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,580 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,456 |
| Scotland A-Z | 0 | - | 4.73 | 41,383 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,246 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 333,971 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,217 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,644 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,650 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,503 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,414 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,148 |
| California... or Florida? | 0 | - | 4.60 | 51,712 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,611 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,699 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,901 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,378 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,920 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,775 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,679 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,650 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,420 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,229 |
| Which City in Texas? | 0 | - | 4.45 | 25,131 |
| Which City in Florida? | 0 | - | 4.61 | 11,009 |
| Hindu Countries | 0 | - | 4.87 | 50,394 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,650 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,867 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,745 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,581 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,200 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,133 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,140 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,053 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,125 |
| Europe Map Quiz | 0 | - | 5.00 | 4,776,795 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,291 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,688,205 |
| Pixelated United States Map | 0 | - | 4.88 | 94,591 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,395,756 |
| States that Beat Florida | 0 | - | 4.32 | 40,921 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,247 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,219 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,861 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,519 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,959 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,108 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,466 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,326 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,798 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,392 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,000 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,452 |
| Russia A-Z | 0 | - | 4.46 | 27,282 |
| Australia A-Z | 0 | - | 4.54 | 50,076 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,560 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,927 |
| Africa Map Quiz | 0 | - | 5.00 | 2,124,335 |
| Asia Map Quiz | 0 | - | 4.99 | 921,820 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,101 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,955 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,297 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,922 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 303,261 |
| Hawaiian Islands | 0 | - | 4.83 | 42,826 |
| Rivers of the United States | 0 | - | 4.93 | 66,450 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,819 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,881 |
| Longest U.S. State Borders | 0 | - | 4.67 | 40,009 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,058 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,336 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,093 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,948 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,616 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,580 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,560 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,280 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,228 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,924 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,543 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,807 |
| New England States | 0 | - | 4.51 | 59,860 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,039 |
| U.S. States by Land Area | 0 | - | 4.63 | 52,955 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,495 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,063 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 82,990 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,170 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,051 |
| U.S. States by Borders | 0 | - | 4.61 | 35,413 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 187,335 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 631,715 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,606 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,209 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,150 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,208 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,315 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,809 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,140 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,778 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,344 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,450 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,784 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,175 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,107 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,512 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,856 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,145 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,313 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,857 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 47,009 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,067 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,251,704 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,332 |
