| New York City A-Z | 0 | - | 4.18 | 32,270 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,717 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,617 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,423 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,482 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,027 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,685,989 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,482 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,737 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,431 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,801 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,502 |
| Name a City - European Countries | 0 | - | 4.90 | 65,141 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,997 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,056 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,004 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,146 |
| Which City in California? | 0 | - | 4.56 | 31,991 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,351 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,764 |
| Europe Capital to Country | 0 | - | 4.99 | 249,464 |
| Asia Capital to Country | 0 | - | 4.96 | 126,415 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,514 |
| European Capitals by Map | 0 | - | 4.99 | 138,434 |
| African Capitals by Map | 0 | - | 4.99 | 133,241 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,008 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,836 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,197 |
| European Coastal Capitals | 0 | - | 4.95 | 90,339 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,482 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,005 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,462 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,715 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,557 |
| Official Cities in the UK | 0 | - | 4.89 | 282,884 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,775 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,198 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,591 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,380 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,865 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,591 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,263 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,955 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,215 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,860 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,943 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,668 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,053 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,042 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,050 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,149 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,789 |
| Which City in Texas? | 0 | - | 4.45 | 25,053 |
| Which City in Florida? | 0 | - | 4.61 | 10,977 |
| California A-Z | 0 | - | 4.49 | 28,768 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,609 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,890 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,870 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,307 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,965 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,870 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,455 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,006 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,206 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,812 |
| US States and State Capitals | 0 | - | 4.99 | 161,120 |
| Capitals of the Stans | 0 | - | 4.95 | 26,712 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,236 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,553 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,358 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,850 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,360 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,018 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,442 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,957 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,168 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,284 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,517 |
| Random European Capital to Country | 0 | - | 4.98 | 190,564 |
| Random European Country to Capital | 0 | - | 4.93 | 164,367 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,157 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,545 |
| Random African Capital to Country | 0 | - | 4.97 | 100,449 |
| Random African Country to Capital | 0 | - | 4.94 | 71,006 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,693 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,185 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,708 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,763 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,031 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,863 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,020 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,281 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,686 |
| Random U.S. City to State | 0 | - | 4.45 | 76,029 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,195 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,495 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,950 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,876 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,618 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,886 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,439 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,777 |
| Which City in Europe? | 0 | - | 4.83 | 107,130 |
| Chicago A-Z | 0 | - | 4.25 | 15,494 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,706 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,791 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,531 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,717 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,890 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,207 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,232 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,893 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,527 |
| Countries by Capital City | 0 | - | 5.00 | 67,856 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,928 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,424 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,919 |
| Moved Capital Cities | 0 | - | 4.96 | 74,014 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,301 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,364 |
| Random Country to Capital | 0 | - | 4.98 | 917,723 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,837 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,003 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,741 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,642 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,592 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,156 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,859 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,247 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,064 |
| Which City in Canada? | 0 | - | 4.82 | 56,934 |
| Boroughs of New York City | 0 | - | 4.47 | 84,458 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,984 |
| Rome A-Z | 0 | - | 4.39 | 24,460 |
| Paris A-Z | 0 | - | 4.16 | 17,432 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,957 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,095 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,601 |
| Australia A-Z | 0 | - | 4.54 | 49,936 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,811 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,662 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,983 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,117 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,025 |
| North American Sports Cities | 0 | - | 4.83 | 171,717 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,211 |
| Cities in European History #1 | 0 | - | 4.63 | 133,759 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,499 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,299 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,689 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,397 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,861 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,099 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,740 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,467 |
| ALL California Cities | 0 | - | 4.37 | 42,980 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,380 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,646 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,212 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,631 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,664 |
| Name a Valid World City | 0 | - | 4.83 | 70,895 |
| Cities by Former Name | 0 | - | 4.83 | 91,401 |
| Former Capitals | 0 | - | 4.88 | 71,358 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,306 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,550 |
| Capital Cities Chain | 0 | - | 4.84 | 82,440 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,315 |
| Coldest World Capitals | 0 | - | 4.95 | 133,435 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,833 |
| World Capitals by Map | 0 | - | 5.00 | 285,460 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,126 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,355 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,622 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 66,491 |
| Capitals Starting With H | 0 | - | 4.90 | 91,907 |
| Capitals Starting With K | 0 | - | 4.85 | 76,080 |
| Capitals Starting With L | 0 | - | 4.81 | 87,311 |
| Capitals Starting With M | 0 | - | 4.93 | 106,851 |
| Capitals Starting With P | 0 | - | 4.88 | 77,591 |
| Capitals Starting With R | 0 | - | 4.87 | 81,346 |
| Capitals Starting With S | 0 | - | 4.89 | 85,230 |
| Capitals Starting With T | 0 | - | 4.84 | 75,695 |
| Capitals Starting With W | 0 | - | 4.87 | 90,966 |
| Capitals Starting With A | 0 | - | 4.97 | 127,169 |
| Capitals Starting With B | 0 | - | 4.89 | 117,811 |
| Capitals Starting With D | 0 | - | 4.93 | 95,880 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,027 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,891 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,485 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,940 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,381 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,712 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,705 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,813 |
| India A-Z | 0 | - | 4.42 | 34,078 |
| Italy A-Z | 0 | - | 4.49 | 58,134 |
| China A-Z | 0 | - | 4.55 | 67,090 |
| Germany A-Z | 0 | - | 4.56 | 62,533 |
| Scotland A-Z | 0 | - | 4.73 | 41,213 |
