| 25 Biggest Cities of the Soviet Union | 0 | - | 4.94 | 84,898 |
| 100 Biggest Soviet Cities in 1989 with a Map | 0 | - | 4.97 | 30,069 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,936 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,919 |
| Europe Capital to Country | 0 | - | 4.99 | 252,113 |
| Asia Capital to Country | 0 | - | 4.96 | 127,402 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,991 |
| European Capitals by Map | 0 | - | 4.99 | 142,119 |
| African Capitals by Map | 0 | - | 4.99 | 142,207 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,006 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,917 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,881 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,196 |
| European Coastal Capitals | 0 | - | 4.95 | 91,320 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,192 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,768 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,816 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,169 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,252 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,249 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,592 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,130 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,402 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,590 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,963 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,717 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,678 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,632 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,564 |
| Capitals of the Stans | 0 | - | 4.95 | 27,147 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,433 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,823 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,076 |
| Random European Capital to Country | 0 | - | 4.98 | 192,153 |
| Random European Country to Capital | 0 | - | 4.93 | 165,911 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,993 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,425 |
| Random African Capital to Country | 0 | - | 4.97 | 101,364 |
| Random African Country to Capital | 0 | - | 4.95 | 71,759 |
| Soviet Union Country Quiz | 0 | - | 4.91 | 81,158 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,451 |
| Name a City - European Countries | 0 | - | 4.90 | 66,185 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,163 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,268 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,379 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,416 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,703 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,050 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,326 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,484 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,082 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,862 |
| Official Cities in the UK | 0 | - | 4.89 | 286,288 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,920 |
| Top 10 Oldest U.S. State Capitals | 0 | - | 4.55 | 32,238 |
| Random U.S. State Capitals on a Map | 0 | - | 4.92 | 104,745 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,862 |
| British Cities with the Most Tourists | 0 | - | 4.83 | 70,938 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.98 | 151,240 |
| Most-Visited U.S. Cities | 0 | - | 4.85 | 95,004 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 82,937 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,093 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,545 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,683 |
| Melbourne Suburbs | 0 | - | 4.86 | 54,322 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 56,529 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,019 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,436 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,712 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,696 |
| Asian Coastal Capitals | 0 | - | 4.52 | 22,273 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,034 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,486 |
| Word Scramble - European Capitals | 0 | - | 4.70 | 94,544 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.64 | 16,209 |
| Name a Valid Asian Capital | 0 | - | 4.53 | 61,992 |
| Which City in Europe? | 0 | - | 4.83 | 107,897 |
| Biggest English Cities by Century | 0 | - | 4.91 | 107,007 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,315 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,368 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,978 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,210 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,238 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,157 |
| Countries by Capital City | 0 | - | 5.00 | 69,408 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,861 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,239 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,901 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,819 |
| Moved Capital Cities | 0 | - | 4.96 | 74,654 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,665 |
| World Capitals Closest to Madrid | 0 | - | 4.50 | 42,459 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,813 |
| Random Country to Capital | 0 | - | 4.98 | 928,229 |
| Speed Capital to U.S. State | 0 | - | 4.46 | 114,602 |
| 10 Southernmost U.S. State Capitals | 0 | - | 4.51 | 39,161 |
| 10 Northernmost U.S. State Capitals | 0 | - | 4.57 | 35,875 |
| 10 Easternmost U.S. State Capitals | 0 | - | 4.50 | 34,792 |
| US States and State Capitals | 0 | - | 4.99 | 165,391 |
| Which City In the United Kingdom? | 0 | - | 4.97 | 94,786 |
| Which City in Canada? | 0 | - | 4.83 | 57,360 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 89,743 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,119 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,427 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,705 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,147 |
| Biggest Cities Once in the Roman Empire | 0 | - | 4.81 | 76,138 |
| North American Sports Cities | 0 | - | 4.82 | 173,164 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,559 |
| Cities in European History #1 | 0 | - | 4.63 | 134,618 |
| Southernmost Major Cities in the U.S. | 0 | - | 4.43 | 36,701 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,783 |
| European Cities by Map #2 | 0 | - | 4.49 | 47,455 |
| European Cities by Map #1 | 0 | - | 4.69 | 55,888 |
| North America Cities by Map | 0 | - | 4.41 | 47,945 |
| Asian Cities by Map #1 | 0 | - | 4.50 | 40,953 |
| Mediterranean Cities by Map | 0 | - | 4.51 | 51,217 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,926 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,501 |
| Random European City to Country | 0 | - | 4.69 | 118,468 |
| Random Asian City to Country | 0 | - | 4.56 | 44,620 |
| Cities in U.S. History #1 | 0 | - | 4.31 | 45,519 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,688 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,957 |
| Cities in Squares on a Map - Europe | 0 | - | 4.69 | 54,491 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,582 |
| Cities by Former Name | 0 | - | 4.83 | 92,058 |
| Former Capitals | 0 | - | 4.88 | 71,681 |
| India State Capitals Quiz | 0 | - | 4.28 | 59,941 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,684 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,985 |
| World Capitals Closest to Jerusalem | 0 | - | 4.47 | 45,064 |
| Capital Cities Chain | 0 | - | 4.84 | 83,380 |
| World Capitals by First Two Letters in 90 Seconds | 0 | - | 4.35 | 246,832 |
| Coldest World Capitals | 0 | - | 4.95 | 134,164 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,846 |
| World Capitals by Map | 0 | - | 5.00 | 289,404 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,833 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,149 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 201,845 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,577 |
| Capitals Starting With H | 0 | - | 4.91 | 93,343 |
| Capitals Starting With K | 0 | - | 4.89 | 84,409 |
| Capitals Starting With M | 0 | - | 4.94 | 109,200 |
| Capitals Starting With P | 0 | - | 4.88 | 79,019 |
| Capitals Starting With R | 0 | - | 4.88 | 82,520 |
| Capitals Starting With S | 0 | - | 4.90 | 86,583 |
| Capitals Starting With T | 0 | - | 4.86 | 76,849 |
| Capitals Starting With W | 0 | - | 4.87 | 91,739 |
| Capitals Starting With A | 0 | - | 4.97 | 129,127 |
| Capitals Starting With B | 0 | - | 4.89 | 119,521 |
| Capitals Starting With D | 0 | - | 4.94 | 97,219 |
| Word Puzzles - U.S. State Capitals | 0 | - | 4.63 | 34,873 |
| U.S. State Capitals Where it Doesn't Snow | 0 | - | 4.56 | 51,418 |
| U.S. State Capital Etymology | 0 | - | 4.53 | 37,099 |
| Name a Valid U.S. State Capital #1 | 0 | - | 4.75 | 54,723 |
| U.S. State Capitals Closest to Canada | 0 | - | 4.64 | 34,081 |
| Confederate States of the U.S. Civil War | 0 | - | 4.91 | 129,648 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,734 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,468 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,077 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,730 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,880 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,855 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,995 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 65,038 |
| U.S Cities by African-American Population | 0 | - | 4.42 | 95,608 |
| UK Cities and Towns by Map | 0 | - | 4.48 | 46,688 |
| South American Cities on the Map | 0 | - | 4.52 | 35,551 |
| 1M Cities by Proximity - United States | 0 | - | 4.63 | 151,838 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 139,011 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.74 | 41,213 |
| Random U.S. City to State | 0 | - | 4.45 | 76,921 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,616 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,348 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.63 | 48,958 |
| German Cities with the Most Tourists | 0 | - | 4.77 | 49,115 |
| Cities on Route 66 on a Map | 0 | - | 4.53 | 33,315 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,496 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,845 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,120 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,847 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,864 |
| Most Guessed Capitals on JetPunk | 0 | - | 4.88 | 127,314 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,470 |
| Flags to Capitals #1 | 0 | - | 4.96 | 58,932 |
| Flags to Capitals #2 | 0 | - | 4.95 | 44,776 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,254 |
| Five Most Guessed Capital Cities by Continent | 0 | - | 4.87 | 94,578 |
| Random World Capitals on a Map | 0 | - | 4.93 | 135,799 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,379 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,888 |
| Asian Capital Superlatives - Top 2 | 0 | - | 4.37 | 28,196 |
| US State Capitals by Proximity in 30 Seconds | 0 | - | 4.17 | 129,793 |
| US State Capitals by First Two Letters in 45 seconds | 0 | - | 4.09 | 58,247 |
| Word Scramble - U.S. State Capitals | 0 | - | 4.27 | 62,670 |
| U.S State Capitals on the Sea | 0 | - | 4.53 | 26,259 |
| U.S. State Capitals with the Highest Elevation | 0 | - | 4.56 | 22,670 |
| Snowiest U.S. State Capitals | 0 | - | 4.44 | 28,674 |
| Top 10 Most Remote U.S. State Capitals | 0 | - | 4.40 | 32,307 |
