| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,672 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 227,896 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,554 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,428 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,678 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,756 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,816 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,057 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,036 |
| Random European Capital to Country | 0 | - | 4.98 | 192,123 |
| Random European Country to Capital | 0 | - | 4.93 | 165,879 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,979 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,412 |
| Random African Capital to Country | 0 | - | 4.97 | 101,337 |
| Random African Country to Capital | 0 | - | 4.95 | 71,742 |
| World Capitals Quiz | 0 | - | 5.00 | 5,105,432 |
| Europe Capital to Country | 0 | - | 4.99 | 252,049 |
| Asia Capital to Country | 0 | - | 4.96 | 127,383 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,960 |
| European Capitals by Map | 0 | - | 4.99 | 142,060 |
| African Capitals by Map | 0 | - | 4.99 | 142,118 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,895 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,861 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,175 |
| European Coastal Capitals | 0 | - | 4.95 | 91,297 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,188 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,652 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,755 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,159 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,325 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,942 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,162 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,227 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,576 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,099 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,390 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,579 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,460 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,943 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,701 |
| Monarchies of Europe | 0 | - | 4.90 | 98,861 |
| Monarchies of Asia | 0 | - | 4.97 | 71,498 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,282 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,332 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,305 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,702 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,805 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,988 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,661 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,215 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,604 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,678 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,323 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,242 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,826 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,864 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,782 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,732 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,997 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,451 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,124 |
| Countries with Megacities | 0 | - | 4.99 | 267,056 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,821 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,121 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,137 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,229 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,286 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,339 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,967 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,194 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,211 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,128 |
| Countries by Capital City | 0 | - | 5.00 | 69,371 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,844 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,218 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,814 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,804 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,485 |
| Moved Capital Cities | 0 | - | 4.96 | 74,641 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,512 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,414 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,072 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,988 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,183 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,611 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,297 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,318 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,015 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,641 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,893 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,211 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,607 |
| North American Sports Cities | 0 | - | 4.82 | 173,142 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,556 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,980 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,419 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,942 |
| Cities by Former Name | 0 | - | 4.83 | 92,038 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,680 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,978 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,153 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,031 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,819 |
| World Capitals by Map | 0 | - | 5.00 | 289,312 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,818 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,367 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,256 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,365 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,390 |
| Random Country to Capital | 0 | - | 4.98 | 927,923 |
| Capitals Starting With H | 0 | - | 4.91 | 93,330 |
| Capitals Starting With K | 0 | - | 4.89 | 84,396 |
| Capitals Starting With M | 0 | - | 4.94 | 109,180 |
| Capitals Starting With P | 0 | - | 4.88 | 79,008 |
| Capitals Starting With R | 0 | - | 4.88 | 82,507 |
| Capitals Starting With S | 0 | - | 4.90 | 86,572 |
| Capitals Starting With T | 0 | - | 4.86 | 76,839 |
| Capitals Starting With W | 0 | - | 4.87 | 91,733 |
| Capitals Starting With A | 0 | - | 4.97 | 129,102 |
| Capitals Starting With B | 0 | - | 4.89 | 119,498 |
| Capitals Starting With D | 0 | - | 4.94 | 97,201 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,642 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,312 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,766 |
| Olympic Host Countries | 0 | - | 4.98 | 201,945 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,846 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,082 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 313,857 |
| The Only European Country ... | 0 | - | 4.91 | 218,965 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,909 |
| Hindu Countries | 0 | - | 4.87 | 50,572 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,487 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,911 |
| Countries of Africa | 0 | - | 5.00 | 2,559,338 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,731 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 150,975 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,567 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,193 |
| Australia A-Z | 0 | - | 4.54 | 50,137 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,966 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,392 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,902 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,346 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,662 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,745 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,885 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,681 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,799 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,880 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,515 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,192 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,512 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,854 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,759 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,319 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,724 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,108 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,228 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,775 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,452 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,905 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,458 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,051 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,669 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,574 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,834 |
| Former Capitals | 0 | - | 4.88 | 71,675 |
| Capital Cities Chain | 0 | - | 4.84 | 83,357 |
| Coldest World Capitals | 0 | - | 4.95 | 134,154 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,122 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,214 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,558 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,841 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,533 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,658 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,745 |
| Countries of the Middle East | 0 | - | 4.96 | 202,928 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,164 |
| Slavic Countries | 0 | - | 4.96 | 112,358 |
| African Island Countries | 0 | - | 4.96 | 102,429 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,167 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,102 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,379 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,108 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,651 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,920 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,313 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,806 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,308 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,592 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,158 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,339 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,497 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,511 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,950 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,779 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,040 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,706 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,257 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,907 |
