| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,127 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,536 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,509 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,731 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,393 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,115 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,843 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,768 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,476 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,639 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,844 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,310 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,200 |
| US States Quiz | 0 | - | 5.00 | 16,971,837 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,111 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,514 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,713 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,218 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,241 |
| US States with an Empty Map | 0 | - | 5.00 | 627,836 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,298 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,662 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,289 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,098 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,072 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,677 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 96,874 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 49,170 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 133,987 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,548 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,674 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,158 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,268 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,725 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,306 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,395 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 92,703 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,946 |
| Random U.S. City to State | 0 | - | 4.45 | 76,800 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,411 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,049 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,691 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,044 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,742 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,771 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,256 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,990 |
| Random European Capital to Country | 0 | - | 4.98 | 191,951 |
| Random European Country to Capital | 0 | - | 4.93 | 165,730 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,917 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,330 |
| Random African Capital to Country | 0 | - | 4.97 | 101,200 |
| Random African Country to Capital | 0 | - | 4.95 | 71,659 |
| U.S. State Capitals Furthest from the State Border | 0 | - | 4.19 | 18,027 |
| The 13 Colonies Quiz | 0 | - | 4.97 | 118,907 |
| U.S. States with the Letter Y | 0 | - | 4.86 | 112,132 |
| 10 Southernmost U.S. States | 0 | - | 4.89 | 114,134 |
| U.S. States with Short Names | 0 | - | 4.91 | 150,189 |
| U.S. States that Start with M | 0 | - | 4.93 | 188,166 |
| U.S. States By Population | 0 | - | 4.92 | 154,039 |
| U.S. States that Start with N | 0 | - | 4.95 | 172,082 |
| U.S. States with Longest Names | 0 | - | 4.85 | 44,806 |
| U.S. States with a Unique First Letter | 0 | - | 4.96 | 88,772 |
| 10 Westernmost U.S. States | 0 | - | 4.95 | 64,482 |
| The Only Remaining U.S. State . . . | 0 | - | 4.93 | 66,005 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,087 |
| Fastest Growing U.S. States Since 1960 | 0 | - | 4.48 | 76,300 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,503 |
| Name a City - European Countries | 0 | - | 4.90 | 66,022 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,574 |
| U.S. State Capital Superlatives - Top 2 | 0 | - | 4.36 | 21,819 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,433 |
| Boroughs of New York City | 0 | - | 4.47 | 84,895 |
| Top 10 Most-Visited U.S. States | 0 | - | 4.90 | 102,343 |
| U.S. States with the Most Immigrants | 0 | - | 4.85 | 82,956 |
| U.S. States with the Highest Population Density | 0 | - | 4.47 | 68,467 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,690 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,320 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,886 |
| ALL California Cities | 0 | - | 4.37 | 43,205 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,489 |
| Europe Capital to Country | 0 | - | 4.99 | 251,773 |
| Asia Capital to Country | 0 | - | 4.96 | 127,274 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,761 |
| European Capitals by Map | 0 | - | 4.99 | 141,714 |
| African Capitals by Map | 0 | - | 4.99 | 141,788 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,768 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,720 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,052 |
| European Coastal Capitals | 0 | - | 4.95 | 91,177 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,110 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,100 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,485 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,094 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,743 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,356 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,166 |
| Official Cities in the UK | 0 | - | 4.89 | 285,769 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,598 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,741 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,103 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,466 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,953 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,301 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,500 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,834 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,629 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.67 | 11,356 |
| American TV Show Settings | 0 | - | 4.37 | 30,694 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,674 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,789 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,479 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,715 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,854 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,923 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,397 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,484 |
| Most Guessed US State Capitals | 0 | - | 4.37 | 24,728 |
| US States and State Capitals | 0 | - | 4.99 | 164,879 |
| Total United States Immigration by Country | 0 | - | 4.91 | 112,234 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.97 | 246,003 |
| Mexico States Map Quiz | 0 | - | 4.84 | 105,491 |
| Name the U.S. National Parks | 0 | - | 4.86 | 60,394 |
| States of Mexico | 0 | - | 4.96 | 177,826 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,910 |
| Longest U.S. State Borders | 0 | - | 4.69 | 40,070 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.64 | 66,038 |
| U.S. States with the Highest Percentage of Farmland | 0 | - | 4.80 | 65,599 |
| U.S. States with the Lowest Percentage of Farmland | 0 | - | 4.74 | 55,313 |
| U.S. License Plates Picture Quiz | 0 | - | 4.61 | 53,101 |
| Capitals of the Stans | 0 | - | 4.95 | 27,086 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,928 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,891 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 84,255 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,343 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,966 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,809 |
| South American Cities on the Map | 0 | - | 4.52 | 35,532 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,581 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,926 |
| U.S. City Name Etymologies | 0 | - | 4.15 | 21,574 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,597,001 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,755 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,847 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,389 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,116 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 110,369 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 92,319 |
| Most-Visited Countries by Canadians | 0 | - | 4.83 | 39,572 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,966 |
| Mexico Cities Map Quiz | 0 | - | 4.83 | 38,779 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 334,853 |
| Pixelated United States Map | 0 | - | 4.88 | 94,717 |
| States and Provinces that touch the Rocky Mountains | 0 | - | 4.43 | 32,553 |
| 10 U.S. States With The Highest Murder Rates | 0 | - | 4.47 | 54,752 |
| 10 U.S. States With The Lowest Murder Rates | 0 | - | 4.48 | 52,845 |
| Name a Valid U.S. State #2 | 0 | - | 4.63 | 77,331 |
| Name a Valid U.S. State #3 | 0 | - | 4.78 | 49,239 |
| U.S. State Superlatives #1 | 0 | - | 4.47 | 87,649 |
| U.S. State Superlatives #2 | 0 | - | 4.53 | 40,738 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,694 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,100 |
| Find the City #1 | 0 | - | 4.97 | 43,260 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,190 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,868 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,064 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,043 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,944 |
| Countries by Capital City | 0 | - | 5.00 | 69,189 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,735 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,110 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,355 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,123 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,704 |
| Moved Capital Cities | 0 | - | 4.96 | 74,576 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,183 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,310 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,294 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,770 |
| Which City in Europe? | 0 | - | 4.83 | 107,802 |
| Neighborhoods of New York City | 0 | - | 4.37 | 30,554 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 147,054 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,441 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,874 |
| Regions of U.S. States | 0 | - | 4.37 | 44,127 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,353 |
| 10 U.S. States with the Most Valuable Crops | 0 | - | 4.41 | 29,625 |
| States, Provinces & Territories that Touch the Appalachian Mountains | 0 | - | 4.59 | 20,412 |
| U.S. States with the Lowest HDI | 0 | - | 4.47 | 28,922 |
| Which U.S. State - Multiple Choice | 0 | - | 4.48 | 20,353 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,911 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,615 |
| Random Capital to Country | 0 | - | 4.99 | 2,599,368 |
| Random Country to Capital | 0 | - | 4.98 | 926,428 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,949 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,107 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 50,006 |
| U.S. States with the Fewest Borders | 0 | - | 4.78 | 114,153 |
| U.S. States with the Most Borders | 0 | - | 4.53 | 62,355 |
| Walking Across U.S. State Borders with Hints | 0 | - | 4.74 | 35,113 |
