| California A-Z | 0 | - | 4.49 | 28,711 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,705 |
| Random U.S. States on a Map | 0 | - | 4.96 | 621,692 |
| New York City A-Z | 0 | - | 4.18 | 32,196 |
| US States Quiz | 0 | - | 5.00 | 16,707,760 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,896 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,687 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,561 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,442 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,337 |
| United States Map Quiz | 0 | - | 4.98 | 4,142,410 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,622 |
| US States with an Empty Map | 0 | - | 5.00 | 619,073 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 116,774 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,401 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,450 |
| U.S. States with Short Names | 0 | - | 4.91 | 147,715 |
| U.S. States that Start with M | 0 | - | 4.93 | 185,967 |
| U.S. States By Population | 0 | - | 4.92 | 152,407 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,445 |
| U.S. States with Longest Names | 0 | - | 4.84 | 43,895 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 81,927 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 87,581 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 63,775 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 64,921 |
| U.S. Senators by State | 0 | - | 4.45 | 39,768 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 158,904 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,096 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,518 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,082 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 85,673 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.84 | 66,860 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,451 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 172,551 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 105,011 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,106 |
| Vietnam War Countries | 0 | - | 4.83 | 93,641 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,122 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 81,956 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,094 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 94,771 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 47,629 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 131,994 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,471 |
| Chicago A-Z | 0 | - | 4.25 | 15,456 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,702 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,958 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,675 |
| U.S. State Flags | 0 | - | 4.89 | 167,225 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 48,621 |
| U.S. States that Border Canada | 0 | - | 4.91 | 182,553 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,098 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 206,809 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,619 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,111 |
| Which City in California? | 0 | - | 4.56 | 31,897 |
| Monarchies of Europe | 0 | - | 4.90 | 97,354 |
| Monarchies of Asia | 0 | - | 4.97 | 70,615 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,443 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 74,896 |
| U.S. State Border Crossings | 0 | - | 4.97 | 95,978 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,078 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,519,344 |
| Category Elimination - U.S. States #1 | 0 | - | 4.87 | 218,625 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 132,574 |
| States that Beat California | 0 | - | 4.54 | 63,252 |
| States that Beat Texas | 0 | - | 4.58 | 44,107 |
| States that Beat New York | 0 | - | 4.51 | 44,568 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,640 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,246 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,755 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,132 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,601 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,435 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,791 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,691 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,254 |
| Total United States Immigration by Country | 0 | - | 4.91 | 110,681 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 241,040 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,305 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,393 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,278 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,116 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,280 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,144 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,510 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,941 |
| Scotland A-Z | 0 | - | 4.73 | 41,054 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,078 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 328,143 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,568 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,200 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.46 | 52,378 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.50 | 40,156 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,201 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,982 |
| California... or Florida? | 0 | - | 4.60 | 50,991 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,283 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,485 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,442 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,104 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,424 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,566 |
| U.S. Cities A-Z by Clue | 0 | - | 4.36 | 39,678 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,211 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,031 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,562 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,897 |
| Which City in Texas? | 0 | - | 4.45 | 24,980 |
| Which City in Florida? | 0 | - | 4.61 | 10,931 |
| Hindu Countries | 0 | - | 4.86 | 49,603 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,006 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,451 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,123 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,192 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,187 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 108,508 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 90,896 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,128 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,628 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,574 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,817 |
| US States by Borders in 30 Seconds | 0 | - | 4.68 | 2,665,204 |
| Pixelated United States Map | 0 | - | 4.89 | 93,519 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,380,832 |
| States that Beat Florida | 0 | - | 4.32 | 40,606 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 75,799 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,699 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,220 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,225 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,408 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,244 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,380 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,348 |
| Countries Closest to Maine | 0 | - | 4.84 | 66,468 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,983 |
| Russia A-Z | 0 | - | 4.46 | 27,145 |
| Australia A-Z | 0 | - | 4.54 | 49,788 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,140 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,570 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,851 |
| Asia Map Quiz | 0 | - | 4.99 | 907,387 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,647 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,643 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,055 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,245 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 300,100 |
| Hawaiian Islands | 0 | - | 4.83 | 42,437 |
| Rivers of the United States | 0 | - | 4.93 | 65,545 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,344 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,590 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,401 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,054 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,236 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,933 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,433 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,966 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,287 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,040 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,022 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,773 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,394 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,669 |
| New England States | 0 | - | 4.51 | 59,710 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,670 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,485 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,190 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,889 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,345 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.69 | 55,664 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,672 |
| U.S. States by Borders | 0 | - | 4.63 | 35,085 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 182,695 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 618,867 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,251 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,146 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 27,920 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 44,966 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 43,999 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,331 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 32,798 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,419 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 74,898 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,218 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,428 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 89,995 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,374 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,163 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 81,890 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,593 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,028 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,738 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,820 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,416 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,879 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 77,653 |
| Name a City - European Countries | 0 | - | 4.92 | 64,450 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,491 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,169 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,594 |
