| New York City A-Z | 0 | - | 4.18 | 32,345 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,526 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,067 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 94,366 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,146 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,363 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,694,290 |
| Africa Capitals Quiz | 0 | - | 4.99 | 740,816 |
| Asia Capitals Quiz | 0 | - | 4.98 | 695,696 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,659 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,595 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,532 |
| Name a City - European Countries | 0 | - | 4.90 | 65,798 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,371 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,213 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,094 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,234 |
| Which City in California? | 0 | - | 4.56 | 32,100 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,094 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,575 |
| Europe Capital to Country | 0 | - | 4.99 | 251,204 |
| Asia Capital to Country | 0 | - | 4.96 | 126,991 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,412 |
| European Capitals by Map | 0 | - | 4.99 | 140,689 |
| African Capitals by Map | 0 | - | 4.99 | 139,005 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,150 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,451 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,815 |
| European Coastal Capitals | 0 | - | 4.95 | 90,947 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,881 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,265 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,892 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,983 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 145,022 |
| Official Cities in the UK | 0 | - | 4.89 | 284,939 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,838 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,055 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,508 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,245 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,924 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,193 |
| North America Capitals Quiz | 0 | - | 4.99 | 220,930 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,833 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,289 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,659 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,121 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,379 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,295 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,667 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,491 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,353 |
| Which City in Texas? | 0 | - | 4.45 | 25,126 |
| Which City in Florida? | 0 | - | 4.61 | 11,007 |
| California A-Z | 0 | - | 4.49 | 28,816 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,535 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 149,806 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,767 |
| World Capitals Quiz | 0 | - | 5.00 | 5,089,303 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,349 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,632 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,989 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,921 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,310 |
| US States and State Capitals | 0 | - | 4.99 | 163,893 |
| Capitals of the Stans | 0 | - | 4.95 | 26,988 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,458 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,639 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,220 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,074 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,514 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,199 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,473 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,593,100 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,907 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,417 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,872 |
| Random European Capital to Country | 0 | - | 4.98 | 191,632 |
| Random European Country to Capital | 0 | - | 4.93 | 165,512 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,783 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,126 |
| Random African Capital to Country | 0 | - | 4.97 | 101,007 |
| Random African Country to Capital | 0 | - | 4.94 | 71,487 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,793 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,290 |
| Melbourne Suburbs | 0 | - | 4.86 | 53,756 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,815 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,186 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.82 | 56,103 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,511 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,070 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 176,758 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,876 |
| Random U.S. City to State | 0 | - | 4.45 | 76,649 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,357 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,543 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,072 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,972 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,018 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 51,165 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,075 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,901 |
| Which City in Europe? | 0 | - | 4.83 | 107,669 |
| Chicago A-Z | 0 | - | 4.25 | 15,529 |
| European Cities A-Z by Clue #1 | 0 | - | 4.26 | 79,179 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,848 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,748 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,591 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,820 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,712 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,655 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,825 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,689 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,542 |
| Countries by Capital City | 0 | - | 5.00 | 68,822 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,486 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,919 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,510 |
| Moved Capital Cities | 0 | - | 4.96 | 74,425 |
| Random Capital to Country | 0 | - | 4.99 | 2,596,272 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,684 |
| Random Country to Capital | 0 | - | 4.98 | 923,963 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 114,186 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,085 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,821 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,736 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,636 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,255 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,906 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,286 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,535 |
| Which City in Canada? | 0 | - | 4.83 | 57,196 |
| Boroughs of New York City | 0 | - | 4.47 | 84,791 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,068 |
| Rome A-Z | 0 | - | 4.40 | 24,512 |
| Paris A-Z | 0 | - | 4.16 | 17,467 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,426 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,491 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,237 |
| Australia A-Z | 0 | - | 4.54 | 50,063 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,993 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,164 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,885 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,320 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,158 |
| North American Sports Cities | 0 | - | 4.83 | 172,764 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,443 |
| Cities in European History #1 | 0 | - | 4.63 | 134,310 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,655 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,395 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,821 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,608 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,918 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,175 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,511 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,738 |
| ALL California Cities | 0 | - | 4.37 | 43,143 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,479 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,360 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,679 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,191 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,263 |
| Name a Valid World City | 0 | - | 4.83 | 71,586 |
| Cities by Former Name | 0 | - | 4.83 | 91,804 |
| Former Capitals | 0 | - | 4.88 | 71,557 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,537 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,823 |
| Capital Cities Chain | 0 | - | 4.84 | 83,059 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,612 |
| Coldest World Capitals | 0 | - | 4.95 | 133,871 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,510 |
| World Capitals by Map | 0 | - | 5.00 | 287,982 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,578 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,858 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,211 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 68,124 |
| Capitals Starting With H | 0 | - | 4.91 | 92,819 |
| Capitals Starting With K | 0 | - | 4.88 | 83,873 |
| Capitals Starting With L | 0 | - | 4.81 | 88,340 |
| Capitals Starting With M | 0 | - | 4.93 | 108,220 |
| Capitals Starting With P | 0 | - | 4.88 | 78,449 |
| Capitals Starting With R | 0 | - | 4.87 | 82,061 |
| Capitals Starting With S | 0 | - | 4.90 | 86,045 |
| Capitals Starting With T | 0 | - | 4.84 | 76,389 |
| Capitals Starting With W | 0 | - | 4.87 | 91,442 |
| Capitals Starting With A | 0 | - | 4.97 | 128,412 |
| Capitals Starting With B | 0 | - | 4.88 | 118,826 |
| Capitals Starting With D | 0 | - | 4.93 | 96,719 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,129 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,009 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,604 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,012 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,418 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.43 | 54,829 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,793 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,662 |
| India A-Z | 0 | - | 4.42 | 34,199 |
| Italy A-Z | 0 | - | 4.49 | 58,517 |
| China A-Z | 0 | - | 4.55 | 67,423 |
| Germany A-Z | 0 | - | 4.56 | 62,734 |
| Scotland A-Z | 0 | - | 4.73 | 41,361 |
