| California A-Z | 0 | - | 4.49 | 28,862 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,741 |
| Random U.S. States on a Map | 0 | - | 4.96 | 631,361 |
| New York City A-Z | 0 | - | 4.18 | 32,410 |
| US States Quiz | 0 | - | 5.00 | 17,026,667 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 126,065 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,721 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,290 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,845 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,927 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,229 |
| United States Map Quiz | 0 | - | 4.98 | 4,173,902 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,391 |
| US States with an Empty Map | 0 | - | 5.00 | 629,705 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 119,219 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,461 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,476 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,547 |
| U.S. States that Start with M | 0 | - | 4.94 | 188,603 |
| U.S. States By Population | 0 | - | 4.92 | 154,273 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,397 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,996 |
| 10 Northernmost U.S. States | 0 | - | 4.90 | 83,185 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,998 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,609 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,226 |
| U.S. Senators by State | 0 | - | 4.44 | 40,149 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 161,189 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,331 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.86 | 125,785 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.85 | 69,884 |
| Top 10 Newest U.S. States | 0 | - | 4.85 | 86,730 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.85 | 68,075 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,847 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,740 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 40,000 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,231 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,648 |
| Vietnam War Countries | 0 | - | 4.82 | 94,765 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,595 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 83,121 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,065 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 97,430 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,473 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 134,637 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,555 |
| Chicago A-Z | 0 | - | 4.25 | 15,559 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,951 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,206 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 58,550 |
| U.S. State Flags | 0 | - | 4.88 | 173,559 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,298 |
| U.S. States that Border Canada | 0 | - | 4.91 | 187,112 |
| U.S. States that Border Tennessee | 0 | - | 4.83 | 65,580 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,914 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,474 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 93,008 |
| Which City in California? | 0 | - | 4.56 | 32,196 |
| Monarchies of Europe | 0 | - | 4.90 | 99,059 |
| Monarchies of Asia | 0 | - | 4.97 | 71,624 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,368 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 76,084 |
| U.S. State Border Crossings | 0 | - | 4.97 | 96,973 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,907 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,558,849 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,797 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,874 |
| States that Beat California | 0 | - | 4.54 | 63,937 |
| States that Beat Texas | 0 | - | 4.58 | 44,544 |
| States that Beat New York | 0 | - | 4.50 | 45,358 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,411 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,329 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,588 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,623 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,957 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,327 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,494 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,709 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,910 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,585 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 247,111 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 201,012 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,511 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,794 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,973 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,095 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,984 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,822 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,669 |
| Scotland A-Z | 0 | - | 4.73 | 41,502 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,609 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 336,371 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 119,392 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 66,765 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,932 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 53,128 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 39,483 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.48 | 37,210 |
| California... or Florida? | 0 | - | 4.60 | 51,913 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,720 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,788 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 65,065 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 34,490 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.74 | 64,108 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 41,848 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,957 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,352 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,856 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,384 |
| Which City in Texas? | 0 | - | 4.45 | 25,184 |
| Which City in Florida? | 0 | - | 4.61 | 11,044 |
| Hindu Countries | 0 | - | 4.86 | 50,687 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,304 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,428 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.92 | 95,729 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,158 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,450 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,773 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,623 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,437 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,941 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,150 |
| 10 Longest Rivers in the United States | 0 | - | 4.86 | 39,466 |
| US States by Borders in 30 Seconds | 0 | - | 4.69 | 2,696,148 |
| Pixelated United States Map | 0 | - | 4.89 | 94,959 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.70 | 1,400,208 |
| States that Beat Florida | 0 | - | 4.32 | 41,043 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,379 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 88,165 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,112 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,608 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,222 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,406 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 90,012 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,689 |
| Countries Closest to Alaska | 0 | - | 4.93 | 125,322 |
| Countries Closest to Maine | 0 | - | 4.85 | 67,714 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,287 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,612 |
| Russia A-Z | 0 | - | 4.46 | 27,330 |
| Australia A-Z | 0 | - | 4.54 | 50,167 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,453,571 |
| Oceania Map Quiz | 0 | - | 4.98 | 660,530 |
| Africa Map Quiz | 0 | - | 5.00 | 2,131,070 |
| Asia Map Quiz | 0 | - | 4.99 | 926,970 |
| California Cities Map Quiz | 0 | - | 4.50 | 88,243 |
| Florida Cities Map Quiz | 0 | - | 4.48 | 61,044 |
| New York Cities Map Quiz | 0 | - | 4.55 | 42,409 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 235,469 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 304,311 |
| Hawaiian Islands | 0 | - | 4.83 | 43,021 |
| Rivers of the United States | 0 | - | 4.93 | 66,805 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,456 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,988 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,204 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,578 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,388 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.75 | 35,138 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,180 |
| Top 10 U.S. States People are Leaving | 0 | - | 4.44 | 70,757 |
| Top 10 U.S. States People are Moving To | 0 | - | 4.74 | 64,258 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,866 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,689 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.70 | 61,553 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 36,300 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 67,997 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.55 | 38,586 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 32,853 |
| New England States | 0 | - | 4.51 | 59,915 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,198 |
| U.S. States by Land Area | 0 | - | 4.55 | 53,119 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 57,571 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 38,139 |
| Add a Letter - Make a U.S. State | 0 | - | 4.70 | 83,237 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 56,344 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.75 | 41,192 |
| U.S. States by Borders | 0 | - | 4.61 | 35,517 |
| Save Americans by Guessing U.S. States | 0 | - | 4.61 | 189,327 |
| Win the U.S. Presidential Election | 0 | - | 4.79 | 637,539 |
| 10 Easternmost U.S. States | 0 | - | 4.53 | 56,725 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 102,409 |
| A Superlative for Every U.S. State | 0 | - | 4.44 | 28,251 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.62 | 45,299 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.46 | 44,486 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 99,991 |
| U.S. States with the Cheapest Home Prices | 0 | - | 4.74 | 33,277 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 74,855 |
| Top 10 Most Asian U.S. States | 0 | - | 4.80 | 75,539 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 81,542 |
| Top 10 Least Obese U.S. States | 0 | - | 4.75 | 73,912 |
| Top 10 Least-Educated U.S. States | 0 | - | 4.43 | 91,464 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.48 | 85,351 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 52,620 |
| Top 10 Most White U.S. States | 0 | - | 4.49 | 83,176 |
| Top 10 Most German U.S. States | 0 | - | 4.48 | 60,343 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 38,417 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.49 | 28,895 |
| U.S. States With No City Over 100,000 | 0 | - | 4.57 | 18,165 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,882 |
| Flags of Asia Quiz | 0 | - | 4.99 | 622,157 |
