| California A-Z | 0 | - | 4.48 | 27,937 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 123,301 |
| Random U.S. States on a Map | 0 | - | 4.95 | 511,636 |
| US States Quiz | 0 | - | 5.00 | 14,994,749 |
| Top 10 Coldest U.S. States | 0 | - | 4.91 | 101,814 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 102,327 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 57,500 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,574 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 343,339 |
| United States Map Quiz | 0 | - | 4.98 | 3,933,259 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 51,572 |
| US States with an Empty Map | 0 | - | 5.00 | 562,635 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 102,122 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 97,802 |
| 10 Southernmost U.S. States | 0 | - | 4.86 | 100,790 |
| U.S. States with Short Names | 0 | - | 4.87 | 132,057 |
| U.S. States that Start with M | 0 | - | 4.91 | 152,647 |
| U.S. States By Population | 0 | - | 4.90 | 131,457 |
| U.S. States that Start with N | 0 | - | 4.95 | 157,416 |
| U.S. States with Longest Names | 0 | - | 4.84 | 36,826 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 74,738 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 78,957 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 58,999 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 57,089 |
| U.S. Senators by State | 0 | - | 4.49 | 36,730 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.95 | 146,797 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 168,770 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 99,808 |
| Top 10 Least Obese U.S. States | 0 | - | 4.81 | 69,336 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 174,909 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 151,866 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 93,074 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,695 |
| New York City A-Z | 0 | - | 4.18 | 30,643 |
| Vietnam War Countries | 0 | - | 4.81 | 87,432 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 90,998 |
| U.S. States with the Longest International Borders | 0 | - | 4.81 | 42,421 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 74,483 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 464,375 |
| U.S. States or European Countries by Area | 0 | - | 4.94 | 72,977 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 37,330 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 117,367 |
| Los Angeles A-Z | 0 | - | 4.16 | 8,878 |
| Chicago A-Z | 0 | - | 4.20 | 10,323 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 101,074 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 179,379 |
| Cartoon Versions of U.S. States | 0 | - | 4.82 | 53,223 |
| U.S. State Shapes Quiz #2 | 0 | - | 4.82 | 91,537 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.94 | 52,503 |
| U.S. State Flags | 0 | - | 4.88 | 140,305 |
| Great Plains States and Provinces on a Map | 0 | - | 4.94 | 39,220 |
| U.S. States that Border Canada | 0 | - | 4.90 | 166,987 |
| U.S. States that Border Tennessee | 0 | - | 4.84 | 58,083 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 187,514 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,351 |
| Top 10 Most Native American U.S. States | 0 | - | 4.84 | 72,586 |
| Monarchies of Europe | 0 | - | 4.89 | 88,188 |
| Monarchies of Asia | 0 | - | 4.95 | 54,784 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.88 | 66,459 |
| U.S. State Border Crossings | 0 | - | 4.96 | 82,985 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 78,221 |
| Fifty US States in One Minute | 0 | - | 4.57 | 3,287,250 |
| Category Elimination - U.S. States #1 | 0 | - | 4.90 | 197,605 |
| States that Beat California | 0 | - | 4.57 | 58,423 |
| States that Beat Texas | 0 | - | 4.57 | 41,511 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 204,862 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 145,954 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.91 | 94,854 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 81,287 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 84,101 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 75,216 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 64,578 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 62,342 |
| Random U.S. State Capitals on a Map | 0 | - | 4.94 | 93,060 |
| Total United States Immigration by Country | 0 | - | 4.90 | 98,195 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 189,024 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 181,712 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 111,292 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 103,557 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,956 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 182,988 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 116,991 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 117,256 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 22,769 |
| Scotland A-Z | 0 | - | 4.75 | 38,284 |
| Asian Countries Americans Travel to the Most | 0 | - | 4.84 | 55,836 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.47 | 104,015 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.52 | 62,676 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 47,890 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.52 | 34,423 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 37,671 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 35,587 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 75,902 |
| U.S. State Superlatives #2 | 0 | - | 4.52 | 37,655 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.54 | 61,120 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.79 | 59,160 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 39,670 |
| Most Guessed European Capitals | 0 | - | 4.89 | 97,085 |
| Name a World Capital A-Z | 0 | - | 4.99 | 143,303 |
| US State Capitals Quiz - No Hints | 0 | - | 4.96 | 80,962 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.88 | 44,886 |
| Which City in California? | 0 | - | 4.54 | 30,308 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 78,080 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 126,093 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 69,506 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 83,382 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,912 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 137,463 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 95,307 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 80,310 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 65,971 |
| Countries that Beat the United States | 0 | - | 4.92 | 148,114 |
| Europe Map Quiz | 0 | - | 5.00 | 4,351,269 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 281,882 |
| 10 Longest Rivers in the United States | 0 | - | 4.82 | 35,439 |
| US States by Borders in 30 Seconds | 0 | - | 4.75 | 2,442,354 |
| Pixelated United States Map | 0 | - | 4.90 | 83,740 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.58 | 1,261,933 |
| States that Beat New York | 0 | - | 4.45 | 30,722 |
| States that Beat Florida | 0 | - | 4.24 | 37,655 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.46 | 65,458 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.57 | 131,688 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 127,786 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 76,308 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 50,197 |
| Countries with the Most Hindus | 0 | - | 4.91 | 114,711 |
| Countries Closest to Alaska | 0 | - | 4.92 | 100,331 |
| Countries Closest to Maine | 0 | - | 4.86 | 59,872 |
| Countries Closest to Israel | 0 | - | 4.86 | 99,846 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 45,928 |
| Biggest Trading Partners - South Africa | 0 | - | 4.82 | 38,099 |
| Biggest Trading Partners - Colombia | 0 | - | 4.89 | 36,259 |
| Russia A-Z | 0 | - | 4.45 | 26,002 |
| Australia A-Z | 0 | - | 4.48 | 38,795 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,355,706 |
| Oceania Map Quiz | 0 | - | 4.98 | 576,645 |
| Africa Map Quiz | 0 | - | 5.00 | 1,960,804 |
| Asia Map Quiz | 0 | - | 4.99 | 800,319 |
| California Cities Map Quiz | 0 | - | 4.49 | 82,896 |
| Florida Cities Map Quiz | 0 | - | 4.49 | 57,871 |
| New York Cities Map Quiz | 0 | - | 4.54 | 40,027 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 220,694 |
| U.S. Map with Random Merged States | 0 | - | 4.94 | 278,487 |
| Hawaiian Islands | 0 | - | 4.86 | 38,926 |
| Rivers of the United States | 0 | - | 4.92 | 58,089 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 392,529 |
| Longest U.S. State Borders | 0 | - | 4.66 | 34,930 |
| U.S. States with the Fewest Borders | 0 | - | 4.76 | 106,860 |
| U.S. States with the Most Borders | 0 | - | 4.56 | 61,244 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.69 | 60,641 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 47,150 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 54,378 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.76 | 53,214 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 34,245 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 58,558 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 31,913 |
| New England States | 0 | - | 4.52 | 52,584 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 49,585 |
| US States by Land Area | 0 | - | 4.54 | 48,956 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.37 | 54,934 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.53 | 36,433 |
| Add a Letter - Make a U.S. State | 0 | - | 4.75 | 77,310 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.70 | 51,696 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.78 | 37,707 |
| Win the U.S. Presidential Election | 0 | - | 4.80 | 522,883 |
| 10 Easternmost U.S. States | 0 | - | 4.54 | 53,364 |
| The Only U.S. State ... #1 | 0 | - | 4.55 | 83,239 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.75 | 42,812 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.48 | 40,906 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.47 | 94,355 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.79 | 56,710 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 61,806 |
| Top 10 Newest U.S. States | 0 | - | 4.79 | 68,628 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 62,212 |
| Top 10 Most Obese U.S. States | 0 | - | 4.53 | 78,716 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.51 | 65,201 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.45 | 48,872 |
| Top 10 Most White U.S. States | 0 | - | 4.53 | 56,436 |
| Top 10 Most German U.S. States | 0 | - | 4.50 | 42,606 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.30 | 35,340 |
| Top 10 Least Religious U.S. States | 0 | - | 4.51 | 31,564 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.51 | 27,742 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.44 | 37,799 |
| Top 10 U.S. States Where the Rent is Too Dang High | 0 | - | 4.65 | 42,539 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,066,070 |
| Flags of Asia Quiz | 0 | - | 4.99 | 534,618 |
| European Cities A-Z | 0 | - | 4.25 | 70,856 |
| Random Cities Near Chicago on a Map | 0 | - | 4.50 | 31,485 |
| Name a City - European Countries | 0 | - | 4.95 | 53,637 |
| Africa Capitals Quiz | 0 | - | 4.99 | 648,938 |
| Asia Capitals Quiz | 0 | - | 4.98 | 606,460 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.69 | 32,105 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.57 | 44,358 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 124,106 |
| Countries That Use the Euro | 0 | - | 4.93 | 66,042 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,208,158 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 95,298 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,751 |
| The Only European Country ... | 0 | - | 4.93 | 183,049 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 196,965 |
