| California A-Z | 0 | - | 4.48 | 28,278 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 125,245 |
| Random U.S. States on a Map | 0 | - | 4.95 | 559,521 |
| US States Quiz | 0 | - | 5.00 | 15,641,424 |
| Top 10 Coldest U.S. States | 0 | - | 4.92 | 106,282 |
| Top 10 Hottest U.S. States | 0 | - | 4.85 | 116,633 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.84 | 58,911 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 112,197 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.97 | 353,297 |
| United States Map Quiz | 0 | - | 4.98 | 4,027,223 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 53,225 |
| US States with an Empty Map | 0 | - | 5.00 | 585,023 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 108,290 |
| U.S. States with the Letter Y | 0 | - | 4.85 | 103,206 |
| 10 Southernmost U.S. States | 0 | - | 4.87 | 105,531 |
| U.S. States with Short Names | 0 | - | 4.89 | 138,710 |
| U.S. States that Start with M | 0 | - | 4.92 | 176,452 |
| U.S. States By Population | 0 | - | 4.90 | 135,897 |
| U.S. States that Start with N | 0 | - | 4.94 | 162,812 |
| U.S. States with Longest Names | 0 | - | 4.87 | 39,740 |
| 10 Northernmost U.S. States | 0 | - | 4.89 | 78,100 |
| U.S. States with a Unique First Letter | 0 | - | 4.95 | 82,546 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 60,891 |
| The Only Remaining U.S. State . . . | 0 | - | 4.94 | 60,134 |
| U.S. Senators by State | 0 | - | 4.49 | 38,073 |
| Top 10 Largest U.S. States by Area | 0 | - | 4.94 | 152,326 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 172,612 |
| Top 10 Poorest U.S. States by Median Income | 0 | - | 4.85 | 118,446 |
| U.S. States with the Highest Percentage of Hispanics | 0 | - | 4.83 | 66,181 |
| Top 10 Newest U.S. States | 0 | - | 4.83 | 82,248 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 181,538 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 158,461 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 97,580 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 66,290 |
| New York City A-Z | 0 | - | 4.18 | 31,273 |
| Vietnam War Countries | 0 | - | 4.81 | 89,487 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 95,263 |
| U.S. States with the Most Immigrants | 0 | - | 4.84 | 77,642 |
| Word Scramble - U.S. States | 0 | - | 4.96 | 477,459 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 85,989 |
| Louisiana Purchase with a Map | 0 | - | 4.95 | 40,843 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 122,449 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,128 |
| Chicago A-Z | 0 | - | 4.25 | 15,058 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 103,557 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 183,610 |
| U.S. States that Start with M - Shape Quiz | 0 | - | 4.93 | 54,436 |
| U.S. State Flags | 0 | - | 4.88 | 150,071 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 42,801 |
| U.S. States that Border Canada | 0 | - | 4.91 | 171,089 |
| Name a Valid U.S. State #1 | 0 | - | 4.95 | 194,959 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 90,973 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 76,686 |
| Monarchies of Europe | 0 | - | 4.89 | 92,128 |
| Monarchies of Asia | 0 | - | 4.96 | 67,535 |
| U.S. Cities with the Most International Tourists | 0 | - | 4.86 | 69,516 |
| U.S. State Border Crossings | 0 | - | 4.96 | 85,458 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 81,985 |
| Fifty US States in One Minute | 0 | - | 4.53 | 3,396,727 |
| Category Elimination - U.S. States #1 | 0 | - | 4.92 | 205,376 |
| States that Beat California | 0 | - | 4.53 | 60,548 |
| States that Beat Texas | 0 | - | 4.57 | 42,689 |
| States that Beat New York | 0 | - | 4.51 | 41,604 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 214,312 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 153,229 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.89 | 100,192 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 84,840 |
| Most-Visited U.S. Cities | 0 | - | 4.86 | 81,593 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 69,016 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 64,839 |
| Random U.S. State Capitals on a Map | 0 | - | 4.91 | 97,044 |
| Total United States Immigration by Country | 0 | - | 4.88 | 102,975 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 199,599 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 188,297 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 114,730 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 107,585 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 86,052 |
| Top 10 Coldest European Countries | 0 | - | 4.93 | 186,504 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 120,585 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 119,540 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 24,485 |
| Scotland A-Z | 0 | - | 4.74 | 39,317 |
| Top 10 Richest U.S. States by Median Income | 0 | - | 4.46 | 106,093 |
| U.S. States by Coldest Recorded Temperature | 0 | - | 4.51 | 64,088 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.44 | 48,496 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 35,494 |
| U.S. States by Wikipedia Descriptions #1 | 0 | - | 4.57 | 38,290 |
| U.S. States by Wikipedia Descriptions #2 | 0 | - | 4.47 | 36,155 |
| U.S. State Superlatives #1 | 0 | - | 4.46 | 76,899 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 38,485 |
| Top 10 U.S. States With the Most Tornadoes | 0 | - | 4.53 | 62,345 |
| Top 10 Least Religious U.S. States | 0 | - | 4.50 | 32,575 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.78 | 60,843 |
| Top 10 U.S. States with the Most Precipitation | 0 | - | 4.46 | 40,429 |
| Most Guessed European Capitals | 0 | - | 4.88 | 98,885 |
| Name a World Capital A-Z | 0 | - | 5.00 | 167,113 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 83,663 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.89 | 45,982 |
| Hindu Countries | 0 | - | 4.85 | 45,844 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 81,837 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 139,025 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.89 | 72,748 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 71,875 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 142,463 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 100,352 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 84,400 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 68,677 |
| Countries that Beat the United States | 0 | - | 4.92 | 155,980 |
| Europe Map Quiz | 0 | - | 5.00 | 4,503,911 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.96 | 300,428 |
| 10 Longest Rivers in the United States | 0 | - | 4.83 | 36,692 |
| US States by Borders in 30 Seconds | 0 | - | 4.71 | 2,538,822 |
| Pixelated United States Map | 0 | - | 4.91 | 87,126 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.65 | 1,316,737 |
| States that Beat Florida | 0 | - | 4.27 | 39,013 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.47 | 66,715 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 134,138 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 32,609 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 133,583 |
| Random State Capital to U.S. State | 0 | - | 4.82 | 80,830 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.82 | 52,318 |
| Countries with the Most Hindus | 0 | - | 4.90 | 118,099 |
| Countries Closest to Alaska | 0 | - | 4.91 | 103,887 |
| Countries Closest to Maine | 0 | - | 4.85 | 62,269 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 37,948 |
| Russia A-Z | 0 | - | 4.45 | 26,465 |
| Australia A-Z | 0 | - | 4.50 | 48,661 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,387,438 |
| Oceania Map Quiz | 0 | - | 4.98 | 597,946 |
| Africa Map Quiz | 0 | - | 5.00 | 2,017,170 |
| Asia Map Quiz | 0 | - | 4.99 | 842,074 |
| California Cities Map Quiz | 0 | - | 4.50 | 84,549 |
| Florida Cities Map Quiz | 0 | - | 4.49 | 58,927 |
| New York Cities Map Quiz | 0 | - | 4.54 | 40,823 |
| Random Sequential U.S. States on a Map | 0 | - | 4.99 | 225,752 |
| U.S. Map with Random Merged States | 0 | - | 4.93 | 287,048 |
| Hawaiian Islands | 0 | - | 4.84 | 40,240 |
| Rivers of the United States | 0 | - | 4.92 | 60,873 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 405,493 |
| U.S. States with the Longest International Borders | 0 | - | 4.77 | 44,159 |
| Longest U.S. State Borders | 0 | - | 4.61 | 36,662 |
| U.S. States with the Fewest Borders | 0 | - | 4.75 | 109,422 |
| U.S. States with the Most Borders | 0 | - | 4.55 | 61,669 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 62,605 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 49,109 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.75 | 55,159 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.75 | 53,933 |
| Top 10 U.S. States That Grow the Most Corn | 0 | - | 4.52 | 34,934 |
| Top 10 U.S. States with the Highest Elevation | 0 | - | 4.51 | 66,876 |
| U.S. States with the Lowest Average Elevation | 0 | - | 4.54 | 32,435 |
| U.S. States With the Highest Average Elevation | 0 | - | 4.61 | 31,792 |
| New England States | 0 | - | 4.52 | 53,099 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 50,756 |
| US States by Land Area | 0 | - | 4.62 | 50,332 |
| U.S. States by Hottest Recorded Temperature | 0 | - | 4.36 | 55,844 |
| Top 10 U.S. States by Inland Water Area | 0 | - | 4.52 | 37,136 |
| Add a Letter - Make a U.S. State | 0 | - | 4.73 | 79,331 |
| Top 10 Widest U.S. States East to West | 0 | - | 4.71 | 53,265 |
| Top 10 Tallest U.S. States North to South | 0 | - | 4.77 | 38,888 |
| U.S. States by Borders | 0 | - | 4.59 | 33,575 |
| Win the U.S. Presidential Election | 0 | - | 4.74 | 560,565 |
| 10 Easternmost U.S. States | 0 | - | 4.55 | 54,540 |
| The Only U.S. State ... #1 | 0 | - | 4.52 | 84,863 |
| Top 10 U.S. States with the Lowest Life Expectancy | 0 | - | 4.64 | 43,741 |
| 50 States, 50 Cities - Hard Version | 0 | - | 4.49 | 42,159 |
| U.S. States with the Most Expensive Home Prices | 0 | - | 4.48 | 96,794 |
| Top 10 Most African-American U.S. States | 0 | - | 4.46 | 73,006 |
| Top 10 Most Asian U.S. States | 0 | - | 4.79 | 72,524 |
| Top 10 Most Obese U.S. States | 0 | - | 4.54 | 79,942 |
| Top 10 Least Obese U.S. States | 0 | - | 4.74 | 71,486 |
| Top 10 Most-Educated U.S. States | 0 | - | 4.47 | 72,540 |
| U.S. States with the Highest Rates of Homelessness | 0 | - | 4.43 | 50,407 |
| Top 10 Most White U.S. States | 0 | - | 4.50 | 76,575 |
| Top 10 Most German U.S. States | 0 | - | 4.49 | 56,632 |
| 10 U.S. States with the Highest Tax Burden | 0 | - | 4.26 | 36,515 |
| Top 10 U.S. States by Manufacturing Employment | 0 | - | 4.51 | 28,142 |
| Slowest Growing U.S. States Since 1960 | 0 | - | 4.43 | 38,839 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,116,080 |
| Flags of Asia Quiz | 0 | - | 4.99 | 559,632 |
| European Cities A-Z | 0 | - | 4.23 | 71,830 |
| Name a City - European Countries | 0 | - | 4.93 | 57,976 |
| Africa Capitals Quiz | 0 | - | 4.99 | 680,538 |
| Asia Capitals Quiz | 0 | - | 4.97 | 640,366 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.56 | 33,186 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 45,371 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 137,287 |
| Countries That Use the Euro | 0 | - | 4.92 | 73,315 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,253,020 |
| 10 Easternmost Countries in Europe | 0 | - | 4.88 | 102,185 |
| The Only European Country ... | 0 | - | 4.92 | 194,224 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 200,765 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 89,017 |
| Random American Countries on a Map | 0 | - | 4.96 | 91,340 |
| Countries of Africa | 0 | - | 5.00 | 2,318,774 |
| Countries of North America Quiz | 0 | - | 5.00 | 938,827 |
| Countries that Visit Florida the Most | 0 | - | 4.56 | 51,530 |
| Biggest Trading Partners - US | 0 | - | 4.62 | 104,176 |
| Italy A-Z | 0 | - | 4.47 | 42,209 |
| China A-Z | 0 | - | 4.64 | 63,456 |
| Germany A-Z | 0 | - | 4.56 | 60,041 |
