| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,668 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,890 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,424 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,597 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,719 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,162 |
| Europe Capital to Country | 0 | - | 4.99 | 252,038 |
| Asia Capital to Country | 0 | - | 4.96 | 127,377 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,945 |
| European Capitals by Map | 0 | - | 4.99 | 142,040 |
| African Capitals by Map | 0 | - | 4.99 | 142,099 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,887 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,852 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,167 |
| European Coastal Capitals | 0 | - | 4.95 | 91,292 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,184 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,624 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,748 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,156 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,051 |
| Random European Capital to Country | 0 | - | 4.98 | 192,118 |
| Random European Country to Capital | 0 | - | 4.93 | 165,872 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,979 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,409 |
| Random African Capital to Country | 0 | - | 4.97 | 101,335 |
| Random African Country to Capital | 0 | - | 4.95 | 71,742 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,303 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,204 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,928 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,142 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,217 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,573 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,090 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,387 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,574 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,935 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,699 |
| Capitals of the Stans | 0 | - | 4.95 | 27,135 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,116 |
| Countries with Megacities | 0 | - | 4.99 | 267,039 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,815 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,116 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,131 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,225 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,280 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,333 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,963 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,189 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,208 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,123 |
| Countries by Capital City | 0 | - | 5.00 | 69,362 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,841 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,213 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,799 |
| Moved Capital Cities | 0 | - | 4.96 | 74,636 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,505 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,937 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,443 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,793 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,658 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,591 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,552 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,730 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,315 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,006 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,638 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,888 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,209 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,604 |
| North American Sports Cities | 0 | - | 4.82 | 173,139 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,940 |
| Name a City - European Countries | 0 | - | 4.90 | 66,150 |
| Cities by Former Name | 0 | - | 4.83 | 92,033 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,975 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,402 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,813 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,812 |
| World Capitals by Map | 0 | - | 5.00 | 289,281 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,816 |
| Capitals Starting With H | 0 | - | 4.91 | 93,329 |
| Capitals Starting With K | 0 | - | 4.89 | 84,394 |
| Capitals Starting With M | 0 | - | 4.94 | 109,175 |
| Capitals Starting With P | 0 | - | 4.88 | 79,003 |
| Capitals Starting With R | 0 | - | 4.88 | 82,501 |
| Capitals Starting With S | 0 | - | 4.90 | 86,565 |
| Capitals Starting With T | 0 | - | 4.86 | 76,835 |
| Capitals Starting With W | 0 | - | 4.87 | 91,731 |
| Capitals Starting With A | 0 | - | 4.97 | 129,100 |
| Capitals Starting With B | 0 | - | 4.89 | 119,496 |
| Capitals Starting With D | 0 | - | 4.94 | 97,199 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,749 |
| Olympic Host Countries | 0 | - | 4.98 | 201,934 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,834 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,075 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,806 |
| The Only European Country ... | 0 | - | 4.91 | 218,943 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,898 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,479 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,906 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,308 |
| Random Country to Capital | 0 | - | 4.98 | 927,868 |
| Countries of Africa | 0 | - | 5.00 | 2,559,190 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,721 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,105 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,227 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,828 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,147 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,255 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,361 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,386 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,634 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,311 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,934 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,385 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,900 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,335 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,656 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,744 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,882 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,190 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,678 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,793 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,875 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,513 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,190 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,511 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,852 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,756 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,775 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,445 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,901 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,444 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,041 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,664 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,573 |
| Former Capitals | 0 | - | 4.88 | 71,675 |
| Capital Cities Chain | 0 | - | 4.84 | 83,357 |
| Coldest World Capitals | 0 | - | 4.95 | 134,151 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,116 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,212 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,554 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,477 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,712 |
| Countries of the Middle East | 0 | - | 4.96 | 202,917 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,161 |
| Slavic Countries | 0 | - | 4.96 | 112,354 |
| African Island Countries | 0 | - | 4.96 | 102,424 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,167 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,357 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,096 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,647 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,913 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,197 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,800 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,304 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,585 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,153 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,333 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,489 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,508 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,948 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,774 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,034 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,705 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,254 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,902 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,134 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 34,114 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,965 |
| Boundary Waters | 0 | - | 4.92 | 88,757 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,407 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,688 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,333 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,948 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,386 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,019 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,689 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,847 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,976 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,834 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,971 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,485 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,798 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,234 |
| Unusual U.S. City Names | 0 | - | 4.52 | 28,007 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,583 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,613 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.38 | 54,037 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 221,676 |
| Ancient City to Country | 0 | - | 4.70 | 108,335 |
| Official Cities in the UK | 0 | - | 4.89 | 286,176 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,197 |
| City-States | 0 | - | 4.53 | 37,399 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,604 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 54,499 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,810 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,321 |
