| New York City A-Z | 0 | - | 4.18 | 32,377 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,964 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,411 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,918 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,809 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,548 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,423 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,508 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,669 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,807 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,021 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,542 |
| Name a City - European Countries | 0 | - | 4.90 | 66,143 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,621 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,304 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,142 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,283 |
| Which City in California? | 0 | - | 4.56 | 32,152 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,438 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,028 |
| Europe Capital to Country | 0 | - | 4.99 | 252,016 |
| Asia Capital to Country | 0 | - | 4.96 | 127,364 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,933 |
| European Capitals by Map | 0 | - | 4.99 | 142,025 |
| African Capitals by Map | 0 | - | 4.99 | 142,081 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,880 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,844 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,158 |
| European Coastal Capitals | 0 | - | 4.95 | 91,283 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,173 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,589 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,728 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,153 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,935 |
| Official Cities in the UK | 0 | - | 4.89 | 286,156 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,996 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,307 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,571 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,456 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,096 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,899 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,120 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,211 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,563 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,078 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,381 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,569 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,455 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,930 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,696 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,831 |
| Which City in Texas? | 0 | - | 4.45 | 25,158 |
| Which City in Florida? | 0 | - | 4.61 | 11,031 |
| California A-Z | 0 | - | 4.49 | 28,841 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,902 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,106 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,040 |
| World Capitals Quiz | 0 | - | 5.00 | 5,104,772 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,647 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,205 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,574 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,333 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,690 |
| US States and State Capitals | 0 | - | 4.99 | 165,284 |
| Capitals of the Stans | 0 | - | 4.95 | 27,132 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,589 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,690 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,802 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,184 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,612 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,298 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,497 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,090 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,394 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,482 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,043 |
| Random European Capital to Country | 0 | - | 4.98 | 192,099 |
| Random European Country to Capital | 0 | - | 4.93 | 165,858 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,973 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,405 |
| Random African Capital to Country | 0 | - | 4.97 | 101,327 |
| Random African Country to Capital | 0 | - | 4.95 | 71,737 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,868 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,414 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,258 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,849 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,267 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,310 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,793 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,602 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,028 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,917 |
| Random U.S. City to State | 0 | - | 4.45 | 76,891 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,439 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,772 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,142 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,029 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,241 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,352 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,379 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,964 |
| Which City in Europe? | 0 | - | 4.83 | 107,874 |
| Chicago A-Z | 0 | - | 4.25 | 15,551 |
| Biggest Cities in Wisconsin | 0 | - | 4.46 | 25,287 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,409 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,931 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,272 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,634 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,876 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,324 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,960 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,181 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,201 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,104 |
| Countries by Capital City | 0 | - | 5.00 | 69,355 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,835 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,205 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,793 |
| Moved Capital Cities | 0 | - | 4.96 | 74,634 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,195 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,800 |
| Random Country to Capital | 0 | - | 4.98 | 927,721 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,590 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,136 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,857 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,783 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,673 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,310 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,937 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,300 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,756 |
| Which City in Canada? | 0 | - | 4.83 | 57,351 |
| Boroughs of New York City | 0 | - | 4.47 | 85,310 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,124 |
| Rome A-Z | 0 | - | 4.40 | 24,548 |
| Paris A-Z | 0 | - | 4.16 | 17,500 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,689 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,784 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,913 |
| Australia A-Z | 0 | - | 4.54 | 50,132 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,353 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,414 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,900 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,441 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,239 |
| North American Sports Cities | 0 | - | 4.83 | 173,126 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Cities in European History #1 | 0 | - | 4.63 | 134,589 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,774 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,446 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,876 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,728 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,951 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,214 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,893 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,430 |
| ALL California Cities | 0 | - | 4.37 | 43,232 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,513 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,658 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,936 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,472 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,563 |
| Name a Valid World City | 0 | - | 4.85 | 71,961 |
| Cities by Former Name | 0 | - | 4.83 | 92,031 |
| Former Capitals | 0 | - | 4.88 | 71,674 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,678 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,974 |
| Capital Cities Chain | 0 | - | 4.84 | 83,345 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,812 |
| Coldest World Capitals | 0 | - | 4.95 | 134,145 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,807 |
| World Capitals by Map | 0 | - | 5.00 | 289,261 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,809 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,107 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,543 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,962 |
| Capitals Starting With H | 0 | - | 4.91 | 93,323 |
| Capitals Starting With K | 0 | - | 4.89 | 84,389 |
| Capitals Starting With M | 0 | - | 4.94 | 109,161 |
| Capitals Starting With P | 0 | - | 4.88 | 78,995 |
| Capitals Starting With R | 0 | - | 4.88 | 82,495 |
| Capitals Starting With S | 0 | - | 4.90 | 86,561 |
| Capitals Starting With T | 0 | - | 4.85 | 76,825 |
| Capitals Starting With W | 0 | - | 4.87 | 91,728 |
| Capitals Starting With A | 0 | - | 4.97 | 129,088 |
| Capitals Starting With B | 0 | - | 4.89 | 119,487 |
| Capitals Starting With D | 0 | - | 4.94 | 97,190 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,215 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,089 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,705 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,071 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,438 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,891 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,630 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,075 |
| India A-Z | 0 | - | 4.42 | 34,292 |
| Italy A-Z | 0 | - | 4.49 | 58,738 |
| China A-Z | 0 | - | 4.55 | 67,613 |
| Germany A-Z | 0 | - | 4.56 | 62,855 |
| Scotland A-Z | 0 | - | 4.73 | 41,457 |
