| New York City A-Z | 0 | - | 4.18 | 32,217 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,195 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,227 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 92,650 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 80,990 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,779 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,679,919 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,858 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,374 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,274 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,203 |
| Los Angeles A-Z | 0 | - | 4.20 | 9,480 |
| Name a City - European Countries | 0 | - | 4.92 | 64,639 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,671 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,934 |
| Cities by Wikipedia Descriptions #2 | 0 | - | 4.53 | 38,937 |
| U.S. Cities by Wikipedia Descriptions | 0 | - | 4.48 | 34,087 |
| Which City in California? | 0 | - | 4.56 | 31,936 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,547 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 74,134 |
| Europe Capital to Country | 0 | - | 4.99 | 248,353 |
| Asia Capital to Country | 0 | - | 4.96 | 125,934 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,782 |
| European Capitals by Map | 0 | - | 4.99 | 136,979 |
| African Capitals by Map | 0 | - | 4.99 | 132,448 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,460 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,410 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,791 |
| European Coastal Capitals | 0 | - | 4.95 | 89,934 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,265 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,544 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 222,289 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,490 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,848 |
| Official Cities in the UK | 0 | - | 4.89 | 281,187 |
| U.S. Cities A-Z by Clue #1 | 0 | - | 4.36 | 39,702 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 137,962 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,205 |
| Random Cities Near Chicago on a Map | 0 | - | 4.52 | 34,259 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,554 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 43,309 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,074 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,486 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,799 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,562 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,339 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,317 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,807 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,797 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,676 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,881 |
| Random State Capital to U.S. State | 0 | - | 4.83 | 88,402 |
| Which City in Texas? | 0 | - | 4.45 | 24,998 |
| Which City in Florida? | 0 | - | 4.61 | 10,942 |
| California A-Z | 0 | - | 4.49 | 28,728 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,069 |
| British Cities with the Most Tourists | 0 | - | 4.82 | 69,415 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 145,497 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 25,927 |
| World Capitals Quiz | 0 | - | 5.00 | 5,040,208 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,555 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,751 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,249 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,680 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 103,424 |
| US States and State Capitals | 0 | - | 4.99 | 159,234 |
| Capitals of the Stans | 0 | - | 4.95 | 26,505 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,060 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,486 |
| 1M Cities by Proximity - United States | 0 | - | 4.56 | 149,899 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.73 | 40,658 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,217 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 32,868 |
| U.S. Cities with the Least Precipitation | 0 | - | 4.42 | 12,400 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,979 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,657 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,195 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,188 |
| Random European Capital to Country | 0 | - | 4.98 | 189,485 |
| Random European Country to Capital | 0 | - | 4.92 | 147,655 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,511 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,590 |
| Random African Capital to Country | 0 | - | 4.97 | 99,847 |
| Random African Country to Capital | 0 | - | 4.94 | 70,341 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.62 | 34,609 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,066 |
| Melbourne Suburbs | 0 | - | 4.84 | 51,997 |
| Hong Kong A-Z | 0 | - | 4.55 | 14,715 |
| Rust Belt Cities Map Quiz | 0 | - | 4.57 | 34,927 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,665 |
| European Capitals by Airport Code | 0 | - | 4.92 | 35,614 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,638 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 173,057 |
| Random U.S. City to State | 0 | - | 4.45 | 75,480 |
| Name a Valid U.S. City over 100,000 | 0 | - | 4.42 | 40,054 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,973 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,847 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,810 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,366 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,724 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,027 |
| U.S. State Capitals Closest to Mexico | 0 | - | 4.58 | 42,698 |
| Which City in Europe? | 0 | - | 4.83 | 106,876 |
| Chicago A-Z | 0 | - | 4.25 | 15,467 |
| Northernmost Major Cities in the U.S. | 0 | - | 4.38 | 48,591 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,078 |
| U.S. Cities with the Most Homeless People | 0 | - | 4.31 | 33,480 |
| Category Elimination - U.S. Metro Areas | 0 | - | 4.41 | 26,633 |
| Find the City #1 | 0 | - | 4.97 | 42,283 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,278 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,872 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,835 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,992 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,817 |
| Countries by Capital City | 0 | - | 5.00 | 67,054 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,530 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,053 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,530 |
| Moved Capital Cities | 0 | - | 4.96 | 73,731 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,570 |
| Random Country to Capital | 0 | - | 4.98 | 913,137 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 113,583 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 38,937 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,676 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,556 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,541 |
| Hottest U.S. State Capitals | 0 | - | 4.77 | 29,085 |
| Coldest U.S. State Capitals | 0 | - | 4.63 | 23,817 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 93,736 |
| Which City in Canada? | 0 | - | 4.82 | 56,786 |
| Boroughs of New York City | 0 | - | 4.47 | 84,211 |
| Washington D.C. Trivia | 0 | - | 4.44 | 38,854 |
| Rome A-Z | 0 | - | 4.39 | 24,421 |
| Paris A-Z | 0 | - | 4.16 | 17,398 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,598 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,795 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,125 |
| Australia A-Z | 0 | - | 4.54 | 49,826 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 93,664 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,256 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,573 |
| Biggest Cities in Washington State | 0 | - | 4.43 | 35,985 |
| Biggest Cities in North Carolina | 0 | - | 4.64 | 34,922 |
| North American Sports Cities | 0 | - | 4.83 | 171,099 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,975 |
| Cities in European History #1 | 0 | - | 4.63 | 133,341 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,368 |
| European Cities by Map #2 | 0 | - | 4.47 | 47,230 |
| European Cities by Map #1 | 0 | - | 4.64 | 55,598 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,214 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,821 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,036 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,345 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,459 |
| ALL California Cities | 0 | - | 4.37 | 42,879 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,121 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,861 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,884 |
| Cities in Squares on a Map - Europe | 0 | - | 4.73 | 53,307 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,428 |
| Name a Valid World City | 0 | - | 4.83 | 70,327 |
| Cities by Former Name | 0 | - | 4.84 | 91,105 |
| Former Capitals | 0 | - | 4.88 | 71,213 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,794 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,335 |
| Capital Cities Chain | 0 | - | 4.84 | 82,061 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,034 |
| Coldest World Capitals | 0 | - | 4.95 | 133,124 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,209 |
| World Capitals by Map | 0 | - | 5.00 | 284,052 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,803 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,955 |
| All First Level Subdivision Capitals | 0 | - | 4.85 | 15,004 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,147 |
| Countries and Capitals of the World With a Map | 0 | - | 5.00 | 65,362 |
| Capitals Starting With H | 0 | - | 4.90 | 91,514 |
| Capitals Starting With K | 0 | - | 4.85 | 75,823 |
| Capitals Starting With L | 0 | - | 4.81 | 86,988 |
| Capitals Starting With M | 0 | - | 4.93 | 106,329 |
| Capitals Starting With P | 0 | - | 4.88 | 77,321 |
| Capitals Starting With R | 0 | - | 4.87 | 81,089 |
| Capitals Starting With S | 0 | - | 4.89 | 84,950 |
| Capitals Starting With T | 0 | - | 4.84 | 75,416 |
| Capitals Starting With W | 0 | - | 4.89 | 90,736 |
| Capitals Starting With A | 0 | - | 4.97 | 126,734 |
| Capitals Starting With B | 0 | - | 4.89 | 117,449 |
| Capitals Starting With D | 0 | - | 4.93 | 95,542 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 31,953 |
| U.S. State Capital Etymology | 0 | - | 4.50 | 36,813 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,385 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.63 | 33,878 |
| U.S. Suburbs Quiz | 0 | - | 4.47 | 18,351 |
| European Cities by Wikipedia Descriptions | 0 | - | 4.45 | 54,620 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,798 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,113 |
| India A-Z | 0 | - | 4.42 | 33,969 |
| Italy A-Z | 0 | - | 4.49 | 57,847 |
| China A-Z | 0 | - | 4.55 | 66,826 |
| Germany A-Z | 0 | - | 4.56 | 62,380 |
| Scotland A-Z | 0 | - | 4.73 | 41,093 |
