| California A-Z | 0 | - | 4.49 | 28,788 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,243 |
| Random U.S. States on a Map | 0 | - | 4.96 | 626,162 |
| New York City A-Z | 0 | - | 4.18 | 32,293 |
| US States Quiz | 0 | - | 5.00 | 16,865,250 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,617 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,597 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,885 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,116 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,935 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 13,739 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,310 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,940 |
| US States with an Empty Map | 0 | - | 5.00 | 624,256 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,813 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 111,365 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 113,377 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,932 |
| U.S. States that Start with M | 0 | - | 4.93 | 187,211 |
| U.S. States By Population | 0 | - | 4.92 | 153,508 |
| U.S. States that Start with N | 0 | - | 4.95 | 171,391 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,420 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,483 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,254 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,190 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 65,583 |
| U.S. Senators by State | 0 | - | 4.45 | 39,943 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,914 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,678 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,156 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,482 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,194 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,484 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,558 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,410 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,817 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,969 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,772 |
| Vietnam War Countries | 0 | - | 4.82 | 94,190 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,723 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,445 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,313 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,960 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,551 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,130 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,509 |
| Chicago A-Z | 0 | - | 4.25 | 15,507 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,228 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,820 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,099 |
| U.S. State Flags | 0 | - | 4.89 | 170,270 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,395 |
| U.S. States that Border Canada | 0 | - | 4.91 | 184,802 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,307 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,788 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,872 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,957 |
| Which City in California? | 0 | - | 4.56 | 32,025 |
| Monarchies of Europe | 0 | - | 4.90 | 98,099 |
| Monarchies of Asia | 0 | - | 4.97 | 71,070 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,864 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,434 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,454 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,880 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,537,758 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 220,705 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 134,124 |
| States that Beat California | 0 | - | 4.54 | 63,594 |
| States that Beat Texas | 0 | - | 4.58 | 44,332 |
| States that Beat New York | 0 | - | 4.50 | 44,955 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,120 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,028 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 109,959 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,305 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,756 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,762 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,741 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,131 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,020 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,590 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 243,859 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,320 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,548 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 134,112 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,134 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,074 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,954 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,941 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,289 |
| Scotland A-Z | 0 | - | 4.73 | 41,269 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,916 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 331,784 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 119,087 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,492 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,089 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 42,128 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,337 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,095 |
| California... or Florida? | 0 | - | 4.60 | 51,334 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,517 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,625 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,733 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,291 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,751 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,695 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,499 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,074 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,117 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,122 |
| Which City in Texas? | 0 | - | 4.45 | 25,086 |
| Which City in Florida? | 0 | - | 4.61 | 10,987 |
| Hindu Countries | 0 | - | 4.86 | 50,115 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,005 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 146,377 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,897 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,243 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,676 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 109,595 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,720 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,796 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,336 |
| Europe Map Quiz | 0 | - | 5.00 | 4,761,288 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,159 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,680,202 |
| Pixelated United States Map | 0 | - | 4.87 | 94,237 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,390,980 |
| States that Beat Florida | 0 | - | 4.32 | 40,808 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,119 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,834 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,309 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,419 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,714 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 144,099 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,979 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,990 |
| Countries Closest to Alaska | 0 | - | 4.93 | 124,277 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,078 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,716 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,299 |
| Russia A-Z | 0 | - | 4.46 | 27,236 |
| Australia A-Z | 0 | - | 4.54 | 49,967 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,020 |
| Oceania Map Quiz | 0 | - | 4.98 | 641,878 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,263 |
| Asia Map Quiz | 0 | - | 4.99 | 916,302 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,961 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,869 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,221 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 234,343 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 302,368 |
| Hawaiian Islands | 0 | - | 4.83 | 42,694 |
| Rivers of the United States | 0 | - | 4.93 | 66,162 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,068 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,788 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,796 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 113,805 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,302 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,039 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,778 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,431 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,342 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,468 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,180 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,155 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,874 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,488 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,767 |
| New England States | 0 | - | 4.51 | 59,803 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,913 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,793 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,369 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,006 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,787 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,986 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,912 |
| U.S. States by Borders | 0 | - | 4.61 | 35,301 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 185,609 |
| Win the U.S. Presidential Election | 0 | - | 4.78 | 627,155 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,474 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,022 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,076 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.61 | 45,122 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,209 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,636 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.70 | 33,024 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,646 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,170 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,367 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,667 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,858 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,817 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,401 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,523 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,960 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,226 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,813 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,889 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,979 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,243,262 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,120 |
