| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,684,135 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,491 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,222 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,737 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,702 |
| Asia Capital to Country | 0 | - | 4.96 | 126,255 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,827 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,389 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,575 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,911 |
| US States Quiz | 0 | - | 5.00 | 16,796,424 |
| Countries Similar to U.S. States by Population | 0 | - | 4.91 | 70,419 |
| Capitals of the Stans | 0 | - | 4.95 | 26,649 |
| Random U.S. City to State | 0 | - | 4.45 | 75,845 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,172 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,344 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,497 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,289 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,005 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,949 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,057 |
| Name a City - European Countries | 0 | - | 4.91 | 64,986 |
| Boroughs of New York City | 0 | - | 4.47 | 84,383 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,946 |
| US States with an Empty Map | 0 | - | 5.00 | 621,893 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,556 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,924 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,836 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,898 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,023 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,003 |
| Countries Bordering China Since 1914 | 0 | - | 4.93 | 94,985 |
| Draw All US State Borders | 0 | - | 4.99 | 135,760 |
| Most Common Immigrant Origin by U.S. State | 0 | - | 4.90 | 65,839 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 95,488 |
| Louisiana Purchase with a Map | 0 | - | 4.96 | 48,195 |
| U.S. States or European Countries by Population | 0 | - | 4.97 | 132,649 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,794 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,345 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,199 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,585 |
| ALL California Cities | 0 | - | 4.37 | 42,955 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,430 |
| Europe Capital to Country | 0 | - | 4.99 | 249,118 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,305 |
| European Capitals by Map | 0 | - | 4.99 | 138,026 |
| African Capitals by Map | 0 | - | 4.99 | 132,979 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,585 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,699 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,070 |
| European Coastal Capitals | 0 | - | 4.95 | 90,199 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,505 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,103 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,639 |
| Random Europe Capitals Mystery Route | 0 | - | 4.98 | 81,569 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,663 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,151 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,875 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,452 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,918 |
| U.S. State Capitals in the Answer | 0 | - | 4.77 | 35,490 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 39,364 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 74,902 |
| Great Plains States and Provinces on a Map | 0 | - | 4.95 | 49,082 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,062 |
| Top 10 Most Native American U.S. States | 0 | - | 4.87 | 91,638 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,783 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,435 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,071 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,438 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,599 |
| Official Cities in the UK | 0 | - | 4.89 | 282,429 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,755 |
| Every City in Arizona on a Map | 0 | - | 4.50 | 9,279 |
| Every City in Colorado on a Map | 0 | - | 4.48 | 13,150 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 13,773 |
| Every City in Alabama on a Map | 0 | - | 4.72 | 8,420 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,407 |
| Ultimate Rust Belt City Quiz | 0 | - | 4.61 | 14,593 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,422 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,487 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,076 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,770 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,766 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,972 |
| Europe Capitals Mystery Route | 0 | - | 4.96 | 54,637 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,059 |
| New York City Trivia #1 | 0 | - | 4.08 | 35,675 |
| U.S. States that Border Canada | 0 | - | 4.91 | 183,907 |
| U.S. Cities With The Most Top Census Appearances | 0 | - | 4.68 | 11,027 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,530 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,758 |
| Cities Founded by the French in North America | 0 | - | 4.50 | 40,345 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,638 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,406 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,695 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,161 |
| Cities in the Dallas Metro Area on a Map | 0 | - | 4.63 | 8,554 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,794 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,790 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,959 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,599 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,203 |
| U.S. State Capitals Furthest from the Sea | 0 | - | 4.49 | 26,036 |
| US States and State Capitals | 0 | - | 4.99 | 160,580 |
| Miami City Trivia | 0 | - | 4.60 | 11,215 |
| All About Atlanta | 0 | - | 4.60 | 11,232 |
| Dallas City Trivia | 0 | - | 4.46 | 6,809 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,529,553 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,869 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,514 |
| Countries Similar to Chinese Provinces by Population | 0 | - | 4.48 | 33,309 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,824 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,888 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,086 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,381 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,222 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,911 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,178 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,204 |
| California Cities starting with SAN or SANTA | 0 | - | 4.33 | 18,492 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,801 |
| Word Scramble - U.S. Cities | 0 | - | 4.13 | 19,721 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,972 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,391 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,389 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,420 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,475 |
| Random European Capital to Country | 0 | - | 4.98 | 190,259 |
| Random European Country to Capital | 0 | - | 4.93 | 161,453 |
| Random African Capital to Country | 0 | - | 4.97 | 100,247 |
| Random African Country to Capital | 0 | - | 4.94 | 70,837 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,356 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,578 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 183,362 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,691 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,134 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,850 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,236 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,511 |
| All 3,143 Counties of the United States on a Map | 0 | - | 4.97 | 330,251 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,887 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,132 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,183 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,580 |
| Find the City #1 | 0 | - | 4.97 | 42,541 |
| Every City in Oregon on a Map | 0 | - | 4.27 | 10,545 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,697 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,108 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,138 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,696 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,305 |
| Countries by Capital City | 0 | - | 5.00 | 67,619 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,823 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,316 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,021 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,775 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,116 |
| Moved Capital Cities | 0 | - | 4.96 | 73,936 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 15,897 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,556 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,320 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,237 |
| U.S. State Capitals Closest to Denver | 0 | - | 4.44 | 10,603 |
| Which City in Europe? | 0 | - | 4.83 | 107,065 |
| Neighborhoods of New York City | 0 | - | 4.37 | 30,336 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 145,958 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,019 |
| US States by Borders in 30 Seconds | 0 | - | 4.67 | 2,673,710 |
| Draw All US State Borders - Extreme | 0 | - | 4.99 | 78,069 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,386,712 |
| Every City in Texas on a Map | 0 | - | 4.36 | 15,220 |
| Biggest Cities in China | 0 | - | 4.52 | 157,887 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,674 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,517 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,122 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,148 |
| Name a City in Every European Country - No Capitals | 0 | - | 4.64 | 55,170 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,859 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,410 |
| Random Country to Capital | 0 | - | 4.98 | 916,060 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,761 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,982 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,722 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,614 |
| U.S. State Capitals Furthest from the State Border | 0 | - | 4.19 | 17,992 |
| Los Angeles City Quiz | 0 | - | 4.14 | 30,715 |
| Philadelphia Trivia | 0 | - | 4.26 | 21,972 |
| New Orleans City Trivia | 0 | - | 4.09 | 20,163 |
| China by Picture | 0 | - | 4.51 | 62,925 |
| Countries Closest to Alaska | 0 | - | 4.93 | 123,910 |
| Countries Closest to Maine | 0 | - | 4.85 | 66,829 |
| Mexico True or False? | 0 | - | 4.89 | 48,501 |
| Rivers of the United States | 0 | - | 4.93 | 65,909 |
| U.S. States with the Longest International Borders | 0 | - | 4.78 | 45,716 |
| Longest U.S. State Borders | 0 | - | 4.67 | 39,627 |
| U.S. States with the Fewest Immigrants | 0 | - | 4.63 | 65,637 |
| U.S. License Plates Picture Quiz | 0 | - | 4.59 | 52,797 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,309 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,186 |
