| New York City A-Z | 0 | - | 4.18 | 32,242 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,487 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,450 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,104 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,295 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,935 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,683,570 |
| Africa Capitals Quiz | 0 | - | 4.99 | 733,961 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,407 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,371 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,544 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,494 |
| Name a City - European Countries | 0 | - | 4.91 | 64,940 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,862 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,008 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,977 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,118 |
| Which City in California? | 0 | - | 4.56 | 31,974 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,157 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,521 |
| Europe Capital to Country | 0 | - | 4.99 | 249,013 |
| Asia Capital to Country | 0 | - | 4.96 | 126,216 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,230 |
| European Capitals by Map | 0 | - | 4.99 | 137,869 |
| African Capitals by Map | 0 | - | 4.99 | 132,913 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,772 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,657 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,024 |
| European Coastal Capitals | 0 | - | 4.95 | 90,167 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,375 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,372 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,007 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,610 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,177 |
| Official Cities in the UK | 0 | - | 4.89 | 282,278 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,750 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,101 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,376 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,321 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,689 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,470 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,432 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,380 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,026 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,740 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,707 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,546 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,951 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,922 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,874 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,021 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,662 |
| Which City in Texas? | 0 | - | 4.45 | 25,035 |
| Which City in Florida? | 0 | - | 4.61 | 10,960 |
| California A-Z | 0 | - | 4.49 | 28,748 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,401 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,696 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,278 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,132 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,404 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,768 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,178 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,715 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,980 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,656 |
| US States and State Capitals | 0 | - | 4.99 | 160,401 |
| Capitals of the Stans | 0 | - | 4.95 | 26,621 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,989 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,163 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,524 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,158 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,787 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,303 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,953 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,427 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,633 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,955 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,248 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,384 |
| Random European Capital to Country | 0 | - | 4.98 | 190,140 |
| Random European Country to Capital | 0 | - | 4.93 | 159,346 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,900 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,986 |
| Random African Capital to Country | 0 | - | 4.97 | 100,165 |
| Random African Country to Capital | 0 | - | 4.94 | 70,727 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,658 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,139 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,421 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,750 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,974 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,782 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,850 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,071 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,018 |
| Random U.S. City to State | 0 | - | 4.45 | 75,795 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,131 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,867 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,920 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,856 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,515 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,812 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,280 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,739 |
| Which City in Europe? | 0 | - | 4.83 | 107,031 |
| Chicago A-Z | 0 | - | 4.25 | 15,488 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,661 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,520 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,512 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,687 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,650 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,075 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,101 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,368 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,240 |
| Countries by Capital City | 0 | - | 5.00 | 67,546 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,784 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,281 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,736 |
| Moved Capital Cities | 0 | - | 4.96 | 73,911 |
| Random Capital to Country | 0 | - | 4.99 | 2,584,789 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,190 |
| Random Country to Capital | 0 | - | 4.98 | 915,394 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,740 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,978 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,719 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,606 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,575 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,129 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,847 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,231 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,934 |
| Which City in Canada? | 0 | - | 4.82 | 56,878 |
| Boroughs of New York City | 0 | - | 4.47 | 84,355 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,941 |
| Rome A-Z | 0 | - | 4.39 | 24,444 |
| Paris A-Z | 0 | - | 4.16 | 17,420 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,822 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 107,972 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,390 |
| Australia A-Z | 0 | - | 4.54 | 49,886 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,759 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,457 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,420 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,061 |
| North American Sports Cities | 0 | - | 4.83 | 171,452 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,063 |
| Cities in European History #1 | 0 | - | 4.63 | 133,578 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,446 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,270 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,658 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,333 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,845 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,079 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,580 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,039 |
| ALL California Cities | 0 | - | 4.37 | 42,945 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,334 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,138 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,067 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,492 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,571 |
| Name a Valid World City | 0 | - | 4.83 | 70,672 |
| Cities by Former Name | 0 | - | 4.84 | 91,292 |
| Former Capitals | 0 | - | 4.88 | 71,299 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,228 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,460 |
| Capital Cities Chain | 0 | - | 4.84 | 82,285 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,196 |
| Coldest World Capitals | 0 | - | 4.95 | 133,232 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,570 |
| World Capitals by Map | 0 | - | 5.00 | 284,911 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,998 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,176 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,427 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,978 |
| Capitals Starting With H | 0 | - | 4.90 | 91,761 |
| Capitals Starting With K | 0 | - | 4.85 | 75,966 |
| Capitals Starting With L | 0 | - | 4.81 | 87,177 |
| Capitals Starting With M | 0 | - | 4.93 | 106,627 |
| Capitals Starting With P | 0 | - | 4.88 | 77,473 |
| Capitals Starting With R | 0 | - | 4.87 | 81,256 |
| Capitals Starting With S | 0 | - | 4.89 | 85,100 |
| Capitals Starting With T | 0 | - | 4.84 | 75,587 |
| Capitals Starting With W | 0 | - | 4.87 | 90,878 |
| Capitals Starting With A | 0 | - | 4.97 | 126,983 |
| Capitals Starting With B | 0 | - | 4.89 | 117,663 |
| Capitals Starting With D | 0 | - | 4.93 | 95,737 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,998 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,867 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,445 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,912 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,371 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,670 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,369 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,563 |
| India A-Z | 0 | - | 4.42 | 34,033 |
| Italy A-Z | 0 | - | 4.49 | 58,036 |
| China A-Z | 0 | - | 4.55 | 66,986 |
| Germany A-Z | 0 | - | 4.56 | 62,475 |
| Scotland A-Z | 0 | - | 4.73 | 41,163 |
