| New York City A-Z | 0 | - | 4.18 | 32,387 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,052 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,460 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,067 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 83,097 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,583 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,221 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,135 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,097 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,828 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,090 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,544 |
| Name a City - European Countries | 0 | - | 4.89 | 66,221 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,735 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,343 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,156 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,291 |
| Which City in California? | 0 | - | 4.56 | 32,162 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,533 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,126 |
| Europe Capital to Country | 0 | - | 4.99 | 252,204 |
| Asia Capital to Country | 0 | - | 4.96 | 127,575 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,050 |
| European Capitals by Map | 0 | - | 4.99 | 142,209 |
| African Capitals by Map | 0 | - | 4.99 | 142,303 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,964 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,932 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,225 |
| European Coastal Capitals | 0 | - | 4.95 | 91,350 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,212 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,824 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,859 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,189 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,118 |
| Official Cities in the UK | 0 | - | 4.89 | 286,413 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,021 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,379 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,578 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,521 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,130 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,113 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,293 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,268 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,613 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,165 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,418 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,601 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,485 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,984 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,736 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,873 |
| Which City in Texas? | 0 | - | 4.45 | 25,162 |
| Which City in Florida? | 0 | - | 4.61 | 11,031 |
| California A-Z | 0 | - | 4.49 | 28,848 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,978 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,380 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,133 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,138 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,706 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,295 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,668 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,416 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,777 |
| US States and State Capitals | 0 | - | 4.99 | 165,493 |
| Capitals of the Stans | 0 | - | 4.95 | 27,163 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,612 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,708 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,857 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,227 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,621 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,323 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,507 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,241 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,463 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,495 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,099 |
| Random European Capital to Country | 0 | - | 4.98 | 192,184 |
| Random European Country to Capital | 0 | - | 4.93 | 165,955 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,007 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,471 |
| Random African Capital to Country | 0 | - | 4.97 | 101,373 |
| Random African Country to Capital | 0 | - | 4.95 | 71,773 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,877 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,432 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,367 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,851 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,286 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,339 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,866 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,682 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 178,234 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,924 |
| Random U.S. City to State | 0 | - | 4.45 | 76,936 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,454 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,018 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,173 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,037 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,279 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,389 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,435 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,973 |
| Which City in Europe? | 0 | - | 4.83 | 107,912 |
| Chicago A-Z | 0 | - | 4.25 | 15,552 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,452 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,946 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,357 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,646 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,888 |
| Find the City #1 | 0 | - | 4.97 | 43,366 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,408 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,001 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,244 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,273 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,201 |
| Countries by Capital City | 0 | - | 5.00 | 69,457 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,894 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,261 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,844 |
| Moved Capital Cities | 0 | - | 4.96 | 74,673 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,228 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,823 |
| Random Country to Capital | 0 | - | 4.98 | 928,680 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,619 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,175 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,889 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,802 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,678 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,322 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,945 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,309 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,803 |
| Which City in Canada? | 0 | - | 4.83 | 57,370 |
| Boroughs of New York City | 0 | - | 4.47 | 85,344 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,133 |
| Rome A-Z | 0 | - | 4.40 | 24,556 |
| Paris A-Z | 0 | - | 4.16 | 17,504 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,746 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,842 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,046 |
| Australia A-Z | 0 | - | 4.54 | 50,142 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 94,421 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,485 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,236 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,471 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,265 |
| North American Sports Cities | 0 | - | 4.82 | 173,187 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,570 |
| Cities in European History #1 | 0 | - | 4.63 | 134,643 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,794 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,462 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,897 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,747 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,957 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,222 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,957 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,551 |
| ALL California Cities | 0 | - | 4.37 | 43,253 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,519 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,709 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,973 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,512 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,607 |
| Name a Valid World City | 0 | - | 4.85 | 72,028 |
| Cities by Former Name | 0 | - | 4.83 | 92,084 |
| Former Capitals | 0 | - | 4.88 | 71,686 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,921 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,997 |
| Capital Cities Chain | 0 | - | 4.84 | 83,413 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,861 |
| Coldest World Capitals | 0 | - | 4.95 | 134,179 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,874 |
| World Capitals by Map | 0 | - | 5.00 | 289,528 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,845 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,179 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,606 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 69,136 |
| Capitals Starting With H | 0 | - | 4.91 | 93,362 |
| Capitals Starting With K | 0 | - | 4.89 | 84,434 |
| Capitals Starting With M | 0 | - | 4.94 | 109,231 |
| Capitals Starting With P | 0 | - | 4.88 | 79,036 |
| Capitals Starting With R | 0 | - | 4.88 | 82,532 |
| Capitals Starting With S | 0 | - | 4.90 | 86,605 |
| Capitals Starting With T | 0 | - | 4.86 | 76,867 |
| Capitals Starting With W | 0 | - | 4.87 | 91,752 |
| Capitals Starting With A | 0 | - | 4.97 | 129,149 |
| Capitals Starting With B | 0 | - | 4.89 | 119,547 |
| Capitals Starting With D | 0 | - | 4.94 | 97,240 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,249 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,104 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,731 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,082 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,445 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,900 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,750 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,187 |
| India A-Z | 0 | - | 4.42 | 34,309 |
| Italy A-Z | 0 | - | 4.49 | 58,774 |
| China A-Z | 0 | - | 4.55 | 67,655 |
| Germany A-Z | 0 | - | 4.56 | 62,872 |
| Scotland A-Z | 0 | - | 4.73 | 41,467 |
