| New York City A-Z | 0 | - | 4.18 | 32,290 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,895 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,742 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,670 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,689 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,113 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,688,169 |
| Africa Capitals Quiz | 0 | - | 4.99 | 736,823 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,015 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,483 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,007 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,508 |
| Name a City - European Countries | 0 | - | 4.90 | 65,301 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,088 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,106 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,033 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,170 |
| Which City in California? | 0 | - | 4.56 | 32,014 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,555 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,981 |
| Europe Capital to Country | 0 | - | 4.99 | 249,845 |
| Asia Capital to Country | 0 | - | 4.96 | 126,567 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,747 |
| European Capitals by Map | 0 | - | 4.99 | 138,896 |
| African Capitals by Map | 0 | - | 4.99 | 133,610 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,220 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,988 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,331 |
| European Coastal Capitals | 0 | - | 4.95 | 90,499 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,546 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,598 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,784 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,789 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,982 |
| Official Cities in the UK | 0 | - | 4.89 | 283,390 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,283 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,707 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,417 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,958 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,683 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,976 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,439 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,386 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 93,965 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 119,143 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,779 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,138 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,123 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,246 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,236 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,941 |
| Which City in Texas? | 0 | - | 4.45 | 25,074 |
| Which City in Florida? | 0 | - | 4.61 | 10,983 |
| California A-Z | 0 | - | 4.49 | 28,783 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,071 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,349 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,434 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,462 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,019 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 132,896 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,239 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,417 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,989 |
| US States and State Capitals | 0 | - | 4.99 | 161,817 |
| Capitals of the Stans | 0 | - | 4.95 | 26,807 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,301 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,570 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,500 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 40,898 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,414 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,061 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,446 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,635 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,358 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,328 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,616 |
| Random European Capital to Country | 0 | - | 4.98 | 190,771 |
| Random European Country to Capital | 0 | - | 4.93 | 164,953 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,365 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,683 |
| Random African Capital to Country | 0 | - | 4.97 | 100,647 |
| Random African Country to Capital | 0 | - | 4.94 | 71,165 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,725 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,213 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,984 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,772 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,059 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,921 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,123 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,480 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 175,226 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,805 |
| Random U.S. City to State | 0 | - | 4.45 | 76,208 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,245 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,009 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,980 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,897 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,710 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,954 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,600 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,808 |
| Which City in Europe? | 0 | - | 4.83 | 107,318 |
| Chicago A-Z | 0 | - | 4.25 | 15,502 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,785 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,740 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,996 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,547 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,749 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,113 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,315 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,393 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,109 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,839 |
| Countries by Capital City | 0 | - | 5.00 | 68,104 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,086 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,569 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,075 |
| Moved Capital Cities | 0 | - | 4.96 | 74,125 |
| Random Capital to Country | 0 | - | 4.99 | 2,589,686 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,499 |
| Random Country to Capital | 0 | - | 4.98 | 919,505 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,926 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,024 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,759 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,667 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,603 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,176 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,868 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,255 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,182 |
| Which City in Canada? | 0 | - | 4.82 | 57,024 |
| Boroughs of New York City | 0 | - | 4.47 | 84,549 |
| Washington D.C. Trivia | 0 | - | 4.45 | 39,010 |
| Rome A-Z | 0 | - | 4.39 | 24,471 |
| Paris A-Z | 0 | - | 4.16 | 17,443 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,084 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,198 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,753 |
| Australia A-Z | 0 | - | 4.54 | 49,958 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,862 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,826 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,516 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,171 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,055 |
| North American Sports Cities | 0 | - | 4.83 | 172,264 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,290 |
| Cities in European History #1 | 0 | - | 4.62 | 133,909 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,537 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,334 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,733 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,455 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,876 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,113 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,887 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,846 |
| ALL California Cities | 0 | - | 4.37 | 43,018 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,410 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,806 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,317 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,752 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,744 |
| Name a Valid World City | 0 | - | 4.83 | 71,086 |
| Cities by Former Name | 0 | - | 4.83 | 91,509 |
| Former Capitals | 0 | - | 4.88 | 71,417 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,359 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,622 |
| Capital Cities Chain | 0 | - | 4.83 | 82,643 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,375 |
| Coldest World Capitals | 0 | - | 4.95 | 133,520 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,063 |
| World Capitals by Map | 0 | - | 5.00 | 286,019 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,233 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,478 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,798 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 66,908 |
| Capitals Starting With H | 0 | - | 4.91 | 92,452 |
| Capitals Starting With K | 0 | - | 4.88 | 83,199 |
| Capitals Starting With L | 0 | - | 4.81 | 87,970 |
| Capitals Starting With M | 0 | - | 4.93 | 107,633 |
| Capitals Starting With P | 0 | - | 4.88 | 78,101 |
| Capitals Starting With R | 0 | - | 4.87 | 81,736 |
| Capitals Starting With S | 0 | - | 4.90 | 85,675 |
| Capitals Starting With T | 0 | - | 4.85 | 76,083 |
| Capitals Starting With W | 0 | - | 4.87 | 91,232 |
| Capitals Starting With A | 0 | - | 4.97 | 127,761 |
| Capitals Starting With B | 0 | - | 4.89 | 118,353 |
| Capitals Starting With D | 0 | - | 4.93 | 96,323 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,059 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,912 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,518 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,961 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,393 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,744 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,004 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,042 |
| India A-Z | 0 | - | 4.42 | 34,111 |
| Italy A-Z | 0 | - | 4.49 | 58,236 |
| China A-Z | 0 | - | 4.55 | 67,187 |
| Germany A-Z | 0 | - | 4.56 | 62,575 |
| Scotland A-Z | 0 | - | 4.73 | 41,260 |
