| California A-Z | 0 | - | 4.49 | 28,702 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,662 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,195 |
| New York City A-Z | 0 | - | 4.18 | 32,187 |
| US States Quiz | 0 | - | 5.00 | 16,693,171 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,837 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,627 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,533 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,381 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,203 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,133 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,593 |
| US States with an Empty Map | 0 | - | 5.00 | 618,569 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,682 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,321 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,368 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,607 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,865 |
| U.S. States By Population | 0 | - | 4.92 | 152,326 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,356 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,835 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,877 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,519 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,745 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,855 |
| U.S. Senators by State | 0 | - | 4.45 | 39,742 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,846 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,065 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,457 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,054 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,647 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,808 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,355 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,298 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,869 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,042 |
| Vietnam War Countries | 0 | - | 4.83 | 93,582 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,065 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,920 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,627 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,661 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,540 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,879 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,463 |
| Chicago A-Z | 0 | - | 4.25 | 15,455 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,643 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,864 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,634 |
| U.S. State Flags | 0 | - | 4.89 | 166,962 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,530 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,344 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,079 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,601 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,592 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,013 |
| Which City in California? | 0 | - | 4.56 | 31,875 |
| Monarchies of Europe | 0 | - | 4.90 | 97,280 |
| Monarchies of Asia | 0 | - | 4.97 | 70,580 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,420 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,840 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,931 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,010 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,517,809 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,450 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,435 |
| States that Beat California | 0 | - | 4.54 | 63,227 |
| States that Beat Texas | 0 | - | 4.58 | 44,083 |
| States that Beat New York | 0 | - | 4.51 | 44,545 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,423 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,090 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,673 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,062 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,521 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,296 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,705 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,647 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,151 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,619 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 240,771 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,188 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,340 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,202 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,054 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,211 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,087 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,480 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,922 |
| Scotland A-Z | 0 | - | 4.73 | 41,031 |
| Name the U.S. National Parks | 0 | - | 4.86 | 58,783 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 327,823 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,552 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,172 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 51,053 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 38,556 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,189 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,971 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,263 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,467 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,409 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,072 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,390 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,558 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,653 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,178 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,914 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,508 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,873 |
| Which City in Texas? | 0 | - | 4.45 | 24,969 |
| Which City in Florida? | 0 | - | 4.61 | 10,922 |
| Hindu Countries | 0 | - | 4.85 | 49,540 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,934 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,368 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,076 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,154 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,106 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,418 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,814 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,084 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,508 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,944 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,792 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,663,874 |
| Pixelated United States Map | 0 | - | 4.89 | 93,437 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,379,723 |
| States that Beat Florida | 0 | - | 4.32 | 40,588 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,779 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,650 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,203 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,174 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,308 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,164 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,300 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,280 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,419 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,968 |
| Russia A-Z | 0 | - | 4.46 | 27,133 |
| Australia A-Z | 0 | - | 4.54 | 49,773 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,419 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,030 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,760 |
| Asia Map Quiz | 0 | - | 4.99 | 906,674 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,632 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,618 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,035 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,131 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 299,948 |
| Hawaiian Islands | 0 | - | 4.83 | 42,423 |
| Rivers of the United States | 0 | - | 4.93 | 65,484 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,068 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,564 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,368 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,007 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,225 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,926 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,391 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,933 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,270 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,022 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,014 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,762 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,386 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,663 |
| New England States | 0 | - | 4.51 | 59,704 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,650 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,468 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,172 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,880 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,301 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,618 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,654 |
| U.S. States by Borders | 0 | - | 4.63 | 35,058 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,438 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,149 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,227 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,122 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 27,907 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,956 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,981 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,296 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,770 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,409 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,863 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,200 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,403 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,952 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,307 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,142 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,843 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,555 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,006 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,729 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,811 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,813 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,217 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,346 |
| Name a City - European Countries | 0 | - | 4.92 | 64,342 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,933 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,550 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,579 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,020 |
