| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,676 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,898 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,433 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,735 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,796 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,059 |
| Random European Capital to Country | 0 | - | 4.98 | 192,128 |
| Random European Country to Capital | 0 | - | 4.93 | 165,890 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,984 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,414 |
| Random African Capital to Country | 0 | - | 4.97 | 101,343 |
| Random African Country to Capital | 0 | - | 4.95 | 71,753 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,683 |
| Europe Capital to Country | 0 | - | 4.99 | 252,060 |
| Asia Capital to Country | 0 | - | 4.96 | 127,385 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,967 |
| European Capitals by Map | 0 | - | 4.99 | 142,077 |
| African Capitals by Map | 0 | - | 4.99 | 142,158 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,905 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,868 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,181 |
| European Coastal Capitals | 0 | - | 4.95 | 91,303 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,190 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,693 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,766 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,162 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,363 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,383 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,953 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,186 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,232 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,579 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,108 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,391 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,584 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,950 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,705 |
| Capitals of the Stans | 0 | - | 4.95 | 27,139 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,134 |
| Countries with Megacities | 0 | - | 4.99 | 267,077 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,827 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,124 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,145 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,231 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,293 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,664 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,342 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,968 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,195 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,213 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,133 |
| Countries by Capital City | 0 | - | 5.00 | 69,377 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,845 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,221 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,806 |
| Moved Capital Cities | 0 | - | 4.96 | 74,644 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,610 |
| World Capitals with a Unique First Letter | 0 | - | 4.83 | 75,807 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,556 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,520 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,042 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,469 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,831 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,421 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,817 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,733 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,322 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,020 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,645 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,897 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,213 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,608 |
| North American Sports Cities | 0 | - | 4.82 | 173,143 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,945 |
| Name a City - European Countries | 0 | - | 4.90 | 66,169 |
| Name a Valid World City | 0 | - | 4.85 | 71,975 |
| Cities by Former Name | 0 | - | 4.83 | 92,046 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,980 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,823 |
| World Capitals by Map | 0 | - | 5.00 | 289,323 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,821 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,435 |
| Random Country to Capital | 0 | - | 4.98 | 928,004 |
| Capitals Starting With H | 0 | - | 4.91 | 93,333 |
| Capitals Starting With K | 0 | - | 4.89 | 84,399 |
| Capitals Starting With M | 0 | - | 4.94 | 109,182 |
| Capitals Starting With P | 0 | - | 4.88 | 79,010 |
| Capitals Starting With R | 0 | - | 4.88 | 82,509 |
| Capitals Starting With S | 0 | - | 4.90 | 86,573 |
| Capitals Starting With T | 0 | - | 4.86 | 76,841 |
| Capitals Starting With W | 0 | - | 4.87 | 91,734 |
| Capitals Starting With A | 0 | - | 4.97 | 129,105 |
| Capitals Starting With B | 0 | - | 4.89 | 119,500 |
| Capitals Starting With D | 0 | - | 4.94 | 97,203 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,774 |
| Olympic Host Countries | 0 | - | 4.98 | 201,957 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,851 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,089 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,895 |
| The Only European Country ... | 0 | - | 4.91 | 218,979 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,922 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,492 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,915 |
| Countries of Africa | 0 | - | 5.00 | 2,559,514 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,154 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,259 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,367 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,395 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,649 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,315 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,002 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,395 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,904 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,349 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,668 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,749 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,890 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,194 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,684 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,805 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,885 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,520 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,194 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,856 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,761 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,725 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,110 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,228 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,776 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,457 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,914 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,467 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,055 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,676 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,575 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,836 |
| Former Capitals | 0 | - | 4.88 | 71,676 |
| Capital Cities Chain | 0 | - | 4.84 | 83,359 |
| Coldest World Capitals | 0 | - | 4.95 | 134,155 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,125 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,214 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,562 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,987 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,597 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,758 |
| Countries of the Middle East | 0 | - | 4.96 | 202,934 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,168 |
| Slavic Countries | 0 | - | 4.96 | 112,362 |
| African Island Countries | 0 | - | 4.96 | 102,437 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,171 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,397 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,122 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,654 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,922 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,380 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,811 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,311 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,597 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,161 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,348 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,500 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,512 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,951 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,785 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,045 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,712 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,259 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,911 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,144 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,127 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,843 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,406 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,037 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,699 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,854 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,978 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,839 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,976 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,489 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,803 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,237 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,681 |
| Ancient City to Country | 0 | - | 4.70 | 108,340 |
| Official Cities in the UK | 0 | - | 4.89 | 286,221 |
| City-States | 0 | - | 4.53 | 37,399 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,505 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,811 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,330 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,279 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,474 |
| All 1M+ Cities in Africa on a Map | 0 | - | 4.93 | 27,074 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,225 |
| Capital Cities with the Highest Elevation | 0 | - | 4.42 | 54,591 |
| Capitals A-Z #1 | 0 | - | 4.86 | 51,836 |
| Capital Names Created by Only 4 Letters | 0 | - | 4.46 | 57,282 |
| Capitals Based on Last Two Letters | 0 | - | 4.48 | 59,078 |
