| California A-Z | 0 | - | 4.49 | 28,748 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,966 |
| Random U.S. States on a Map | 0 | - | 4.96 | 623,979 |
| New York City A-Z | 0 | - | 4.18 | 32,245 |
| US States Quiz | 0 | - | 5.00 | 16,792,591 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,286 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,152 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,729 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,841 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,243 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,521 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,793 |
| US States with an Empty Map | 0 | - | 5.00 | 621,768 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 117,435 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 110,989 |
| 10 Southernmost U.S. States | 0 | - | 4.88 | 112,992 |
| U.S. States with Short Names | 0 | - | 4.91 | 148,463 |
| U.S. States that Start with M | 0 | - | 4.93 | 186,683 |
| U.S. States By Population | 0 | - | 4.92 | 152,842 |
| U.S. States that Start with N | 0 | - | 4.95 | 170,966 |
| U.S. States with Longest Names | 0 | - | 4.84 | 44,212 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 82,251 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,005 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,019 |
| The Only Remaining U.S. State . . . | 0 | - | 4.92 | 65,328 |
| U.S. Senators by State | 0 | - | 4.45 | 39,862 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 159,602 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,413 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 124,913 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,352 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,012 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 67,251 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,102 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,103 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,527 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,469 |
| Vietnam War Countries | 0 | - | 4.83 | 93,937 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 101,452 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,237 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,422 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,456 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,168 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,609 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,495 |
| Chicago A-Z | 0 | - | 4.25 | 15,488 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,994 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,413 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 57,906 |
| U.S. State Flags | 0 | - | 4.89 | 169,071 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,055 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,852 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,228 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 207,966 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,766 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,605 |
| Which City in California? | 0 | - | 4.56 | 31,975 |
| Monarchies of Europe | 0 | - | 4.90 | 97,757 |
| Monarchies of Asia | 0 | - | 4.97 | 70,868 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,672 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 75,211 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,245 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 88,561 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,528,958 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,754 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,431 |
| States that Beat California | 0 | - | 4.54 | 63,447 |
| States that Beat Texas | 0 | - | 4.58 | 44,240 |
| States that Beat New York | 0 | - | 4.50 | 44,786 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,012 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,220 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,416 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,852 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,125 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,135 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,313 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,950 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,675 |
| Total United States Immigration by Country | 0 | - | 4.91 | 111,116 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 242,525 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,206 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,834 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,028 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,515 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,700 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,570 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,715 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,141 |
| Scotland A-Z | 0 | - | 4.73 | 41,171 |
| Name the U.S. National Parks | 0 | - | 4.86 | 59,620 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,112 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 118,726 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 66,374 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 53,716 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.51 | 41,766 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,280 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 37,041 |
| California... or Florida? | 0 | - | 4.60 | 51,191 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,410 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,556 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 64,622 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,205 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,595 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,635 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,752 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,380 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,576 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,876 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,017 |
| Which City in Texas? | 0 | - | 4.45 | 25,036 |
| Which City in Florida? | 0 | - | 4.61 | 10,961 |
| Hindu Countries | 0 | - | 4.86 | 49,877 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,564 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,919 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,307 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,577 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,863 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 109,088 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 91,335 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,459 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,247 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,351 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,994 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,673,372 |
| Pixelated United States Map | 0 | - | 4.89 | 93,879 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,386,253 |
| States that Beat Florida | 0 | - | 4.32 | 40,730 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,014 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,112 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,326 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,479 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,203 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,682 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,698 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,886 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,809 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,422 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,163 |
| Russia A-Z | 0 | - | 4.46 | 27,202 |
| Australia A-Z | 0 | - | 4.54 | 49,891 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,502 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,033 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,641 |
| Asia Map Quiz | 0 | - | 4.99 | 911,715 |
| California Cities Map Quiz | 0 | - | 4.50 | 87,807 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 60,777 |
| New York Cities Map Quiz | 0 | - | 4.54 | 42,151 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 233,889 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 301,554 |
| Hawaiian Islands | 0 | - | 4.83 | 42,575 |
| Rivers of the United States | 0 | - | 4.93 | 65,891 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,758 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,708 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,614 |
| U.S. States with the Fewest Borders | 0 | - | 4.77 | 113,289 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,269 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 34,986 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,632 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.42 | 59,250 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,182 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,388 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,119 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,093 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,834 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,443 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,712 |
| New England States | 0 | - | 4.51 | 59,762 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,793 |
| U.S. States by Land Area | 0 | - | 4.61 | 52,669 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,293 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 37,958 |
| Add a Letter - Make a U.S. State | 0 | - | 4.72 | 82,590 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 55,856 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.74 | 40,809 |
| U.S. States by Borders | 0 | - | 4.61 | 35,215 |
| Save Americans by Guessing U.S. States | 0 | - | 4.63 | 184,287 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 623,126 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,375 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 101,858 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,006 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.67 | 45,050 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,104 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,485 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.72 | 32,918 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,529 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,046 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,299 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,577 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 90,632 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 84,617 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,294 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 82,240 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 59,821 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,128 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,781 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 46,508 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 17,904 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,073 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,632 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,430 |
| Name a City - European Countries | 0 | - | 4.91 | 64,965 |
