| Most Guessed U.S. Cities | 0 | - | 4.90 | 93,255 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,855 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 75,466 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 64,732 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 62,416 |
| New York City A-Z | 0 | - | 4.18 | 30,694 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,549,916 |
| Africa Capitals Quiz | 0 | - | 4.99 | 650,366 |
| Asia Capitals Quiz | 0 | - | 4.98 | 607,793 |
| Most Guessed European Capitals | 0 | - | 4.89 | 97,167 |
| Name a World Capital A-Z | 0 | - | 4.99 | 143,578 |
| Los Angeles A-Z | 0 | - | 4.16 | 8,896 |
| Name a City - European Countries | 0 | - | 4.95 | 53,823 |
| US State Capitals Quiz - No Hints | 0 | - | 4.97 | 81,049 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.88 | 44,916 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.49 | 32,161 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 96,137 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 59,086 |
| Europe Capital to Country | 0 | - | 4.99 | 223,800 |
| Asia Capital to Country | 0 | - | 4.96 | 107,348 |
| EU Capitals with No Hints | 0 | - | 4.96 | 127,326 |
| European Capitals by Map | 0 | - | 4.99 | 98,168 |
| African Capitals by Map | 0 | - | 4.99 | 114,078 |
| Asian Capitals by Map | 0 | - | 4.98 | 49,158 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.89 | 80,635 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 73,984 |
| European Coastal Capitals | 0 | - | 4.96 | 78,730 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.90 | 47,545 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 234,496 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 197,684 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,815 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 127,954 |
| Official Cities in the UK | 0 | - | 4.87 | 237,179 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.57 | 131,801 |
| Divided World City Name Puzzle #1 | 0 | - | 4.90 | 41,055 |
| Random Cities Near Chicago on a Map | 0 | - | 4.51 | 31,694 |
| South America Capitals Quiz | 0 | - | 5.00 | 434,056 |
| North America Capitals Quiz | 0 | - | 4.99 | 190,803 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 53,567 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 85,564 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 107,301 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 79,230 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 67,761 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 89,538 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 52,721 |
| European Capitals Ending in N | 0 | - | 4.92 | 74,919 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 76,489 |
| Name a Valid U.S. State Capital | 0 | - | 4.82 | 50,267 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.51 | 30,673 |
| Which City in Texas? | 0 | - | 4.43 | 23,689 |
| Which City in California? | 0 | - | 4.54 | 30,331 |
| Which City in Florida? | 0 | - | 4.60 | 10,338 |
| California A-Z | 0 | - | 4.48 | 27,956 |
| European Cities A-Z | 0 | - | 4.25 | 70,934 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 57,367 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 98,308 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.96 | 12,447 |
| World Capitals Quiz | 0 | - | 5.00 | 4,581,894 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 80,093 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.89 | 117,013 |
| Name a Valid European Capital | 0 | - | 4.94 | 128,327 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.87 | 69,533 |
| Random U.S. State Capitals on a Map | 0 | - | 4.94 | 93,358 |
| US States and State Capitals Quiz | 0 | - | 4.99 | 124,559 |
| Capitals of the Stans | 0 | - | 4.95 | 21,953 |
| 1M Cities by Proximity - United States | 0 | - | 4.55 | 139,298 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 37,088 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,795 |
| Divided World City Name Puzzle #2 | 0 | - | 4.91 | 30,426 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,410,269 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 117,870 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 48,090 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 77,531 |
| Random European Capital to Country | 0 | - | 4.97 | 155,154 |
| Random European Country to Capital | 0 | - | 4.92 | 137,125 |
| Random Asian Country to Capital | 0 | - | 4.93 | 86,933 |
| Random Asian Capital to Country | 0 | - | 4.97 | 91,031 |
| Random African Capital to Country | 0 | - | 4.97 | 81,169 |
| Random African Country to Capital | 0 | - | 4.94 | 63,243 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.69 | 32,137 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 44,389 |
| Melbourne Suburbs | 0 | - | 4.81 | 39,107 |
| Hong Kong A-Z | 0 | - | 4.52 | 13,809 |
| Rust Belt Cities Map Quiz | 0 | - | 4.56 | 32,650 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.84 | 51,624 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 175,341 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 152,091 |
| U.S. Cities A-Z | 0 | - | 4.21 | 30,839 |
| Random U.S. City to State | 0 | - | 4.44 | 66,914 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,508 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,969 |
| Random African Capitals on a Map | 0 | - | 4.95 | 49,350 |
| Random Asian Capitals on a Map | 0 | - | 4.82 | 46,070 |
| Random European Capitals on a Map | 0 | - | 4.98 | 122,068 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.57 | 40,830 |
| Which City in Europe? | 0 | - | 4.85 | 98,853 |
| Chicago A-Z | 0 | - | 4.20 | 10,346 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.39 | 35,030 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.37 | 40,361 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,994 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.28 | 32,158 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,121 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,967 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,692 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,377 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,380 |
| Countries by Capital City | 0 | - | 4.99 | 51,647 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,280 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,264 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,511 |
| Moved Capital Cities | 0 | - | 4.96 | 68,007 |
| Random Capital to Country | 0 | - | 4.99 | 2,398,455 |
| Random Country to Capital | 0 | - | 4.98 | 815,857 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 107,700 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 37,483 |
| Snowiest U.S. State Capitals | 0 | - | 4.43 | 27,363 |
| Hottest U.S. State Capitals | 0 | - | 4.76 | 21,982 |
| Coldest U.S. State Capitals | 0 | - | 4.57 | 19,098 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 76,116 |
| Which City in Canada? | 0 | - | 4.90 | 45,989 |
| Boroughs of New York City | 0 | - | 4.45 | 78,067 |
| Rome A-Z | 0 | - | 4.36 | 15,083 |
| Paris A-Z | 0 | - | 4.13 | 16,489 |
| Countries Closest to United States A-Z | 0 | - | 4.84 | 108,704 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 101,182 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 179,550 |
| Australia A-Z | 0 | - | 4.48 | 38,852 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,409 |
| European Capitals by Airport Code | 0 | - | 4.89 | 26,664 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 118,194 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,582 |
| Biggest Cities in North Carolina | 0 | - | 4.66 | 32,565 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,653 |
| Important Cities in European History | 0 | - | 4.55 | 110,887 |
| U.S Cities by African-American Population | 0 | - | 4.40 | 83,438 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.91 | 90,622 |
| European Cities by Map #2 | 0 | - | 4.48 | 44,793 |
| European Cities by Map #1 | 0 | - | 4.66 | 52,251 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 39,159 |
| Mediterranean Cities by Map | 0 | - | 4.49 | 49,553 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 195,983 |
| ALL California Cities | 0 | - | 4.36 | 39,723 |
| Important Places in U.S. History | 0 | - | 4.23 | 36,565 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 119,831 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.86 | 92,739 |
| Cities in Squares on a Map - Europe | 0 | - | 4.75 | 47,037 |
| Five Most Guessed Cities by Continent | 0 | - | 4.97 | 105,787 |
| Cities on Route 66 on a Map | 0 | - | 4.52 | 29,726 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.39 | 37,590 |
| Cities by Former Name | 0 | - | 4.84 | 84,250 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.40 | 11,720 |
| Richest Metro Areas in the U.S. | 0 | - | 4.35 | 27,325 |
| Former Capitals Quiz | 0 | - | 4.82 | 58,697 |
| Capitals in their Native Languages | 0 | - | 4.94 | 128,187 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,969 |
| Capital Cities Chain | 0 | - | 4.86 | 72,628 |
| World Capitals by Proximity | 0 | - | 4.89 | 303,948 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.37 | 236,028 |
| Coldest World Capitals | 0 | - | 4.96 | 128,800 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 49,355 |
| World Capitals by Map | 0 | - | 5.00 | 248,107 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 51,098 |
| Capital Cities with Spanish Names | 0 | - | 4.85 | 63,693 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 80,253 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 44,322 |
| World Capitals By Letter - H | 0 | - | 4.85 | 72,171 |
| World Capitals By Letter - K | 0 | - | 4.82 | 66,840 |
| World Capitals By Letter - M | 0 | - | 4.89 | 87,218 |
| World Capitals By Letter - P | 0 | - | 4.85 | 68,066 |
| World Capitals By Letter - R | 0 | - | 4.88 | 73,143 |
| World Capitals By Letter - S | 0 | - | 4.89 | 75,527 |
| World Capitals By Letter - T | 0 | - | 4.82 | 67,309 |
| World Capitals By Letter - W | 0 | - | 4.88 | 83,163 |
| World Capitals By Letter - A | 0 | - | 4.96 | 106,426 |
| World Capitals By Letter - B | 0 | - | 4.84 | 98,182 |
| World Capitals By Letter - D | 0 | - | 4.91 | 80,215 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 34,841 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.65 | 32,546 |
| U.S. Suburbs Quiz | 0 | - | 4.45 | 17,675 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.42 | 51,702 |
| Countries with the Most Christians | 0 | - | 4.93 | 124,608 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 74,858 |
| Italy A-Z | 0 | - | 4.45 | 41,213 |
| China A-Z | 0 | - | 4.58 | 61,394 |
| Germany A-Z | 0 | - | 4.55 | 58,539 |
| Japan A-Z | 0 | - | 4.50 | 39,182 |
| Scotland A-Z | 0 | - | 4.75 | 38,334 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,731 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 164,306 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,670 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,481 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,795 |
| Biggest World Cities A-Z | 0 | - | 4.57 | 206,217 |
| U.S. City Nicknames | 0 | - | 4.23 | 100,300 |
| Westernmost Cities in the U.S. | 0 | - | 4.37 | 15,772 |
| UK Cities and Towns by Map | 0 | - | 4.54 | 44,285 |
| South American Cities on the Map | 0 | - | 4.55 | 33,496 |
| Random European City to Country | 0 | - | 4.71 | 108,527 |
| Random Asian City to Country | 0 | - | 4.53 | 42,799 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.60 | 39,186 |
