| New York City A-Z | 0 | - | 4.18 | 32,370 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,916 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,376 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,837 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,620 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,521 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,697,938 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,211 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,279 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,793 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,976 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,540 |
| Name a City - European Countries | 0 | - | 4.90 | 66,101 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,592 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,289 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,134 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,278 |
| Which City in California? | 0 | - | 4.56 | 32,144 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,396 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,974 |
| Europe Capital to Country | 0 | - | 4.99 | 251,925 |
| Asia Capital to Country | 0 | - | 4.96 | 127,327 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,878 |
| European Capitals by Map | 0 | - | 4.99 | 141,932 |
| African Capitals by Map | 0 | - | 4.99 | 141,999 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,849 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,797 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,113 |
| European Coastal Capitals | 0 | - | 4.95 | 91,242 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,151 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,392 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,633 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,133 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,811 |
| Official Cities in the UK | 0 | - | 4.89 | 286,004 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,981 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,240 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,559 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,405 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,082 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,650 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,959 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,176 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,535 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,035 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,354 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,546 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,441 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,891 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,671 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,787 |
| Which City in Texas? | 0 | - | 4.45 | 25,153 |
| Which City in Florida? | 0 | - | 4.61 | 11,029 |
| California A-Z | 0 | - | 4.49 | 28,839 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,859 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,939 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,993 |
| World Capitals Quiz | 0 | - | 5.00 | 5,102,808 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,615 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,134 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,512 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,281 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,648 |
| US States and State Capitals | 0 | - | 4.99 | 165,143 |
| Capitals of the Stans | 0 | - | 4.95 | 27,104 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,576 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,681 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,746 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,173 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,598 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,291 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,490 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,350 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,340 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,474 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,020 |
| Random European Capital to Country | 0 | - | 4.98 | 192,054 |
| Random European Country to Capital | 0 | - | 4.93 | 165,824 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,952 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,373 |
| Random African Capital to Country | 0 | - | 4.97 | 101,283 |
| Random African Country to Capital | 0 | - | 4.95 | 71,713 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,863 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,405 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,193 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,847 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,253 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,288 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,748 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,542 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,891 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,911 |
| Random U.S. City to State | 0 | - | 4.45 | 76,832 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,427 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,631 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,137 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,023 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,206 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,337 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,340 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,956 |
| Which City in Europe? | 0 | - | 4.83 | 107,846 |
| Chicago A-Z | 0 | - | 4.25 | 15,548 |
| Biggest Cities in Pennsylvania | 0 | - | 4.13 | 45,531 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,375 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,925 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,205 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,622 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,865 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,273 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,924 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,145 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,150 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,045 |
| Countries by Capital City | 0 | - | 5.00 | 69,281 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,800 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,174 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,758 |
| Moved Capital Cities | 0 | - | 4.96 | 74,611 |
| Random Capital to Country | 0 | - | 4.99 | 2,600,529 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,781 |
| Random Country to Capital | 0 | - | 4.98 | 927,270 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,579 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,125 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,855 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,779 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,670 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,304 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,933 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,299 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,730 |
| Which City in Canada? | 0 | - | 4.83 | 57,338 |
| Boroughs of New York City | 0 | - | 4.47 | 85,206 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,118 |
| Rome A-Z | 0 | - | 4.40 | 24,542 |
| Paris A-Z | 0 | - | 4.16 | 17,495 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,656 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,734 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,621 |
| Australia A-Z | 0 | - | 4.54 | 50,126 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,136 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,394 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,766 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,429 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,233 |
| North American Sports Cities | 0 | - | 4.83 | 173,077 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,544 |
| Cities in European History #1 | 0 | - | 4.63 | 134,556 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,763 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,440 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,867 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,714 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,946 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,211 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,848 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,353 |
| ALL California Cities | 0 | - | 4.37 | 43,223 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,509 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,621 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,901 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,445 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,526 |
| Name a Valid World City | 0 | - | 4.85 | 71,917 |
| Cities by Former Name | 0 | - | 4.83 | 92,007 |
| Former Capitals | 0 | - | 4.88 | 71,653 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,664 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,955 |
| Capital Cities Chain | 0 | - | 4.84 | 83,312 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,762 |
| Coldest World Capitals | 0 | - | 4.95 | 134,127 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,769 |
| World Capitals by Map | 0 | - | 5.00 | 289,157 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,786 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,081 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,505 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,873 |
| Capitals Starting With H | 0 | - | 4.91 | 93,291 |
| Capitals Starting With K | 0 | - | 4.89 | 84,361 |
| Capitals Starting With M | 0 | - | 4.94 | 109,107 |
| Capitals Starting With P | 0 | - | 4.88 | 78,961 |
| Capitals Starting With R | 0 | - | 4.88 | 82,472 |
| Capitals Starting With S | 0 | - | 4.90 | 86,532 |
| Capitals Starting With T | 0 | - | 4.85 | 76,798 |
| Capitals Starting With W | 0 | - | 4.87 | 91,712 |
| Capitals Starting With A | 0 | - | 4.97 | 129,044 |
| Capitals Starting With B | 0 | - | 4.89 | 119,440 |
| Capitals Starting With D | 0 | - | 4.94 | 97,155 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,209 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,086 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,695 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,063 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,435 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,883 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,562 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,022 |
| India A-Z | 0 | - | 4.42 | 34,286 |
| Italy A-Z | 0 | - | 4.49 | 58,712 |
| China A-Z | 0 | - | 4.55 | 67,591 |
| Germany A-Z | 0 | - | 4.56 | 62,841 |
| Scotland A-Z | 0 | - | 4.73 | 41,442 |
