| Which City in California? | 0 | - | 4.56 | 31,976 |
| Which City in New York State? | 0 | - | 4.60 | 15,923 |
| Which City in Texas? | 0 | - | 4.45 | 25,040 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,710 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 93,202 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 81,355 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,820 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,684,314 |
| Random European Capital to Country | 0 | - | 4.98 | 190,314 |
| Random European Country to Capital | 0 | - | 4.93 | 162,273 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,979 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,081 |
| Random African Capital to Country | 0 | - | 4.97 | 100,288 |
| Random African Country to Capital | 0 | - | 4.94 | 70,872 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,697 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,575 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,503 |
| Name a City - European Countries | 0 | - | 4.91 | 65,012 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,417 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,896 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,563 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,843 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,336 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,904 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,023 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,215 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,614 |
| Europe Capital to Country | 0 | - | 4.99 | 249,177 |
| Asia Capital to Country | 0 | - | 4.96 | 126,286 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,337 |
| European Capitals by Map | 0 | - | 4.99 | 138,075 |
| African Capitals by Map | 0 | - | 4.99 | 133,003 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,707 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,838 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,722 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,085 |
| European Coastal Capitals | 0 | - | 4.95 | 90,222 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,402 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,556 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,147 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,649 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,245 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 39,369 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,981 |
| New York City A-Z | 0 | - | 4.18 | 32,249 |
| Official Cities in the UK | 0 | - | 4.89 | 282,485 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,345 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,567 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 62,098 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,792 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,787 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,582 |
| European Capitals Furthest from the Sea | 0 | - | 4.91 | 81,986 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,936 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,069 |
| US States and State Capitals | 0 | - | 4.99 | 160,615 |
| Random U.S. States on a Map | 0 | - | 4.96 | 624,194 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,533 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,776 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 146,458 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 26,181 |
| World Capitals Quiz | 0 | - | 5.00 | 5,055,206 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,797 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,966 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,455 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 128,985 |
| Capitals of the Stans | 0 | - | 4.95 | 26,657 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,140 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 174,234 |
| U.S. City Nicknames | 0 | - | 4.25 | 103,605 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,184 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 150,214 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,809 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,977 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,715 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,039 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,927 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,394 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,003 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,433 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,486 |
| Melbourne Suburbs | 0 | - | 4.84 | 52,547 |
| Which City in Europe? | 0 | - | 4.83 | 107,077 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,594 |
| European Capitals by Airport Code | 0 | - | 4.93 | 35,910 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 64,899 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,680 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,609 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,517 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,130 |
| Random U.S. City to State | 0 | - | 4.45 | 75,851 |
| Name a City - U.S. States | 0 | - | 4.41 | 26,639 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,151 |
| Find the City #1 | 0 | - | 4.97 | 42,551 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,506 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,714 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,117 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,144 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,719 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,331 |
| Countries by Capital City | 0 | - | 5.00 | 67,646 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,834 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,328 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,084 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,799 |
| Moved Capital Cities | 0 | - | 4.96 | 73,949 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,258 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,769 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,356 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,985 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,723 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,616 |
| US State Capitals - One Minute Sprint | 0 | - | 4.06 | 183,382 |
| Which City in Canada? | 0 | - | 4.82 | 56,899 |
| Boroughs of New York City | 0 | - | 4.47 | 84,391 |
| Washington D.C. Trivia | 0 | - | 4.45 | 38,946 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,497 |
| Chicago A-Z | 0 | - | 4.25 | 15,488 |
| Miami City Trivia | 0 | - | 4.60 | 11,216 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 208,092 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,773 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,507 |
| North American Sports Cities | 0 | - | 4.83 | 171,542 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,081 |
| Cities in European History #1 | 0 | - | 4.63 | 133,627 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,280 |
| European Cities by Map #1 | 0 | - | 4.67 | 55,669 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,847 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,085 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,344 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,112 |
| Cities in Squares on a Map - Europe | 0 | - | 4.74 | 53,551 |
| Random Cities Near Paris on a Map | 0 | - | 4.55 | 39,432 |
| Name a Valid World City | 0 | - | 4.83 | 70,753 |
| Cities by Former Name | 0 | - | 4.84 | 91,319 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,260 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,489 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,229 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,669 |
| World Capitals by Map | 0 | - | 5.00 | 285,084 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,034 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,699 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,673 |
| Random Country to Capital | 0 | - | 4.98 | 916,214 |
| Capitals Starting With H | 0 | - | 4.90 | 91,815 |
| Capitals Starting With K | 0 | - | 4.85 | 76,010 |
| Capitals Starting With L | 0 | - | 4.81 | 87,226 |
| Capitals Starting With M | 0 | - | 4.93 | 106,697 |
| Capitals Starting With P | 0 | - | 4.88 | 77,515 |
| Capitals Starting With R | 0 | - | 4.87 | 81,287 |
| Capitals Starting With S | 0 | - | 4.89 | 85,141 |
| Capitals Starting With T | 0 | - | 4.84 | 75,626 |
| Capitals Starting With W | 0 | - | 4.87 | 90,907 |
| Capitals Starting With A | 0 | - | 4.97 | 127,048 |
| Capitals Starting With B | 0 | - | 4.89 | 117,713 |
| Capitals Starting With D | 0 | - | 4.93 | 95,794 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,665 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,154 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,008 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 36,876 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,922 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,372 |
| Which City in Germany? | 0 | - | 4.50 | 135,938 |
| Which City in Italy? | 0 | - | 4.64 | 89,836 |
| Which City in France? | 0 | - | 4.64 | 72,897 |
| Which City in Spain? | 0 | - | 4.50 | 49,828 |
| Which City in Australia? | 0 | - | 4.67 | 34,350 |
| Fifty US States in One Minute | 0 | - | 4.61 | 3,529,959 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 219,908 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 133,540 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,622 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,015 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,931 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,646 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,458 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,078 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,755 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,454 |
| Westernmost Cities in the U.S. | 0 | - | 4.36 | 16,435 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,456 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,353 |
| South American Cities on the Map | 0 | - | 4.56 | 35,335 |
| North America Cities by Map | 0 | - | 4.41 | 47,731 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,634 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,172 |
| ALL California Cities | 0 | - | 4.37 | 42,955 |
| Random European City to Country | 0 | - | 4.69 | 117,256 |
| Random Asian City to Country | 0 | - | 4.56 | 44,446 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 130,209 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,322 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,433 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,061 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 48,653 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,595 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,733 |
| Every City in Arizona on a Map | 0 | - | 4.50 | 9,280 |
| Every City in Colorado on a Map | 0 | - | 4.48 | 13,152 |
| Every City in Washington State on a Map | 0 | - | 4.54 | 13,774 |
| Every City in Alabama on a Map | 0 | - | 4.72 | 8,422 |
| Every City in Michigan on a Map | 0 | - | 4.44 | 9,409 |
