| New York City A-Z | 0 | - | 4.18 | 32,364 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,788 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,257 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,669 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,357 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,463 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,696,613 |
| Africa Capitals Quiz | 0 | - | 4.99 | 742,347 |
| Asia Capitals Quiz | 0 | - | 4.98 | 697,480 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,741 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,823 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,536 |
| Name a City - European Countries | 0 | - | 4.90 | 65,985 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,507 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,255 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,114 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,266 |
| Which City in California? | 0 | - | 4.56 | 32,136 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,282 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,838 |
| Europe Capital to Country | 0 | - | 4.99 | 251,674 |
| Asia Capital to Country | 0 | - | 4.96 | 127,238 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,710 |
| European Capitals by Map | 0 | - | 4.99 | 141,543 |
| African Capitals by Map | 0 | - | 4.99 | 141,624 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,672 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,679 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,018 |
| European Coastal Capitals | 0 | - | 4.95 | 91,127 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,095 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,962 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,389 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,077 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,075 |
| Official Cities in the UK | 0 | - | 4.89 | 285,597 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,926 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,169 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,541 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,345 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,032 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,103 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,612 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,035 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,438 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,903 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,275 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,482 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,388 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,812 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,606 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,635 |
| Which City in Texas? | 0 | - | 4.45 | 25,147 |
| Which City in Florida? | 0 | - | 4.61 | 11,021 |
| California A-Z | 0 | - | 4.49 | 28,829 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,751 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 150,550 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,880 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,744 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,492 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,917 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,337 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,153 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,454 |
| US States and State Capitals | 0 | - | 4.99 | 164,707 |
| Capitals of the Stans | 0 | - | 4.95 | 27,071 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,531 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,670 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,633 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,144 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,567 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,254 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,488 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,285 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,213 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,453 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,967 |
| Random European Capital to Country | 0 | - | 4.98 | 191,878 |
| Random European Country to Capital | 0 | - | 4.93 | 165,692 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,894 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,290 |
| Random African Capital to Country | 0 | - | 4.97 | 101,176 |
| Random African Country to Capital | 0 | - | 4.95 | 71,638 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,842 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,381 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,042 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,828 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,231 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,182 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,660 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,426 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 177,463 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,901 |
| Random U.S. City to State | 0 | - | 4.45 | 76,771 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,401 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,233 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,117 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,004 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,165 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,293 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,260 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,937 |
| Which City in Europe? | 0 | - | 4.83 | 107,783 |
| Chicago A-Z | 0 | - | 4.25 | 15,545 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,304 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,903 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,034 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,609 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,848 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,963 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,841 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,025 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,977 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,864 |
| Countries by Capital City | 0 | - | 5.00 | 69,143 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,694 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,082 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,661 |
| Moved Capital Cities | 0 | - | 4.96 | 74,553 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,851 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,754 |
| Random Country to Capital | 0 | - | 4.98 | 925,871 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,256 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,110 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,840 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,759 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,660 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,283 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,928 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,295 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,656 |
| Which City in Canada? | 0 | - | 4.83 | 57,278 |
| Boroughs of New York City | 0 | - | 4.47 | 84,873 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,103 |
| Rome A-Z | 0 | - | 4.40 | 24,532 |
| Paris A-Z | 0 | - | 4.16 | 17,479 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,563 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,637 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,476 |
| Australia A-Z | 0 | - | 4.54 | 50,106 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,099 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,311 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,445 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,398 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,207 |
| North American Sports Cities | 0 | - | 4.83 | 172,971 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,506 |
| Cities in European History #1 | 0 | - | 4.63 | 134,465 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,720 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,429 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,857 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,674 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,937 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,195 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,743 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,116 |
| ALL California Cities | 0 | - | 4.37 | 43,195 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,500 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,516 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,812 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,357 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,446 |
| Name a Valid World City | 0 | - | 4.84 | 71,789 |
| Cities by Former Name | 0 | - | 4.83 | 91,930 |
| Former Capitals | 0 | - | 4.88 | 71,622 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,621 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,901 |
| Capital Cities Chain | 0 | - | 4.84 | 83,219 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,708 |
| Coldest World Capitals | 0 | - | 4.95 | 134,083 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,664 |
| World Capitals by Map | 0 | - | 5.00 | 288,756 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,705 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,997 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,407 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,595 |
| Capitals Starting With H | 0 | - | 4.91 | 93,091 |
| Capitals Starting With K | 0 | - | 4.88 | 84,161 |
| Capitals Starting With L | 0 | - | 4.79 | 92,908 |
| Capitals Starting With M | 0 | - | 4.93 | 108,733 |
| Capitals Starting With P | 0 | - | 4.88 | 78,742 |
| Capitals Starting With R | 0 | - | 4.88 | 82,297 |
| Capitals Starting With S | 0 | - | 4.90 | 86,330 |
| Capitals Starting With T | 0 | - | 4.85 | 76,623 |
| Capitals Starting With W | 0 | - | 4.87 | 91,592 |
| Capitals Starting With A | 0 | - | 4.97 | 128,782 |
| Capitals Starting With B | 0 | - | 4.89 | 119,184 |
| Capitals Starting With D | 0 | - | 4.93 | 96,960 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,194 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,063 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,664 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,037 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,431 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,854 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,351 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,887 |
| India A-Z | 0 | - | 4.42 | 34,256 |
| Italy A-Z | 0 | - | 4.49 | 58,654 |
| China A-Z | 0 | - | 4.55 | 67,526 |
| Germany A-Z | 0 | - | 4.56 | 62,803 |
| Scotland A-Z | 0 | - | 4.73 | 41,409 |
