| New York City A-Z | 0 | - | 4.18 | 32,275 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,762 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,666 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,493 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,540 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,047 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,686,499 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,848 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,975 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,443 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,858 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,505 |
| Name a City - European Countries | 0 | - | 4.90 | 65,188 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,018 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,072 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 39,013 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,149 |
| Which City in California? | 0 | - | 4.56 | 31,999 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,403 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,816 |
| Europe Capital to Country | 0 | - | 4.99 | 249,553 |
| Asia Capital to Country | 0 | - | 4.96 | 126,469 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,574 |
| European Capitals by Map | 0 | - | 4.99 | 138,560 |
| African Capitals by Map | 0 | - | 4.99 | 133,361 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,071 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,871 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,229 |
| European Coastal Capitals | 0 | - | 4.95 | 90,376 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,499 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,147 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,548 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,740 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,618 |
| Official Cities in the UK | 0 | - | 4.89 | 283,047 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,223 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,618 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,387 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,900 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,616 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,416 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,067 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,244 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,887 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,980 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,688 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,074 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,066 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,086 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,163 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,823 |
| Which City in Texas? | 0 | - | 4.45 | 25,057 |
| Which City in Florida? | 0 | - | 4.61 | 10,978 |
| California A-Z | 0 | - | 4.49 | 28,773 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 69,929 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 147,016 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,355 |
| World Capitals Quiz | 0 | - | 5.00 | 5,062,958 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,898 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,714 |
| Name a Valid European Capital | 0 | - | 4.95 | 152,062 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,280 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,834 |
| US States and State Capitals | 0 | - | 4.99 | 161,271 |
| Capitals of the Stans | 0 | - | 4.95 | 26,739 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,259 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,560 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 150,383 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,865 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,378 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,033 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,445 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,631 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,204 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,296 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,546 |
| Random European Capital to Country | 0 | - | 4.98 | 190,622 |
| Random European Country to Capital | 0 | - | 4.93 | 164,580 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,214 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,597 |
| Random African Capital to Country | 0 | - | 4.97 | 100,482 |
| Random African Country to Capital | 0 | - | 4.94 | 71,091 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,703 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,191 |
| Melbourne Suburbs | 0 | - | 4.85 | 52,805 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,765 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 35,038 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,867 |
| European Capitals by Airport Code | 0 | - | 4.93 | 36,041 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,328 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,799 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,781 |
| Random U.S. City to State | 0 | - | 4.45 | 76,118 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,209 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,610 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,959 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,880 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,642 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,903 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,472 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,782 |
| Which City in Europe? | 0 | - | 4.83 | 107,159 |
| Chicago A-Z | 0 | - | 4.25 | 15,497 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,642 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,716 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,837 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,534 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,726 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,944 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,232 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,262 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,958 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,612 |
| Countries by Capital City | 0 | - | 5.00 | 67,907 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,964 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,456 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,957 |
| Moved Capital Cities | 0 | - | 4.96 | 74,051 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,977 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,399 |
| Random Country to Capital | 0 | - | 4.98 | 918,282 |
| Speed Capital to U.S. State | 0 | - | 4.45 | 113,849 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,009 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,744 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,647 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,595 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,159 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,862 |
| U.S. State Capitals with the Least Precipitation | 0 | - | 4.41 | 23,247 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,103 |
| Which City in Canada? | 0 | - | 4.82 | 56,943 |
| Boroughs of New York City | 0 | - | 4.47 | 84,479 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,986 |
| Rome A-Z | 0 | - | 4.39 | 24,465 |
| Paris A-Z | 0 | - | 4.16 | 17,435 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,984 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,120 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,636 |
| Australia A-Z | 0 | - | 4.54 | 49,943 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,827 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,717 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,134 |
| Biggest Cities in Washington State | 0 | - | 4.44 | 36,132 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 35,031 |
| North American Sports Cities | 0 | - | 4.83 | 171,749 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,239 |
| Cities in European History #1 | 0 | - | 4.63 | 133,796 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,512 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,307 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,700 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,413 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,867 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,102 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,780 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,574 |
| ALL California Cities | 0 | - | 4.37 | 42,988 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,384 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,689 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,245 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,654 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,692 |
| Name a Valid World City | 0 | - | 4.83 | 70,931 |
| Cities by Former Name | 0 | - | 4.83 | 91,419 |
| Former Capitals | 0 | - | 4.88 | 71,377 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,323 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,571 |
| Capital Cities Chain | 0 | - | 4.83 | 82,489 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,329 |
| Coldest World Capitals | 0 | - | 4.95 | 133,457 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,881 |
| World Capitals by Map | 0 | - | 5.00 | 285,593 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,152 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,383 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,673 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 66,630 |
| Capitals Starting With H | 0 | - | 4.91 | 92,122 |
| Capitals Starting With K | 0 | - | 4.87 | 80,478 |
| Capitals Starting With L | 0 | - | 4.81 | 87,600 |
| Capitals Starting With M | 0 | - | 4.93 | 107,168 |
| Capitals Starting With P | 0 | - | 4.88 | 77,815 |
| Capitals Starting With R | 0 | - | 4.87 | 81,497 |
| Capitals Starting With S | 0 | - | 4.90 | 85,420 |
| Capitals Starting With T | 0 | - | 4.85 | 75,858 |
| Capitals Starting With W | 0 | - | 4.87 | 91,065 |
| Capitals Starting With A | 0 | - | 4.97 | 127,416 |
| Capitals Starting With B | 0 | - | 4.89 | 118,041 |
| Capitals Starting With D | 0 | - | 4.93 | 96,057 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,035 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,895 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,496 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,942 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,386 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,722 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,783 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,881 |
| India A-Z | 0 | - | 4.42 | 34,092 |
| Italy A-Z | 0 | - | 4.49 | 58,156 |
| China A-Z | 0 | - | 4.55 | 67,119 |
| Germany A-Z | 0 | - | 4.56 | 62,544 |
| Scotland A-Z | 0 | - | 4.73 | 41,229 |
