| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,696 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,947 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,579 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,475 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,066 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,046 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,828 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,097 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,079 |
| Random European Capital to Country | 0 | - | 4.98 | 192,173 |
| Random European Country to Capital | 0 | - | 4.93 | 165,946 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,000 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,459 |
| Random African Capital to Country | 0 | - | 4.97 | 101,371 |
| Random African Country to Capital | 0 | - | 4.95 | 71,770 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,609 |
| Europe Capital to Country | 0 | - | 4.99 | 252,171 |
| Asia Capital to Country | 0 | - | 4.96 | 127,506 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,028 |
| European Capitals by Map | 0 | - | 4.99 | 142,172 |
| African Capitals by Map | 0 | - | 4.99 | 142,279 |
| Asian Capitals by Map | 0 | - | 4.98 | 63,954 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,912 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,213 |
| European Coastal Capitals | 0 | - | 4.95 | 91,339 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,202 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,809 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 225,844 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,182 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,368 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,072 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,283 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,260 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,602 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,152 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,412 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,596 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,483 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 61,978 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,731 |
| Monarchies of Europe | 0 | - | 4.90 | 98,895 |
| Monarchies of Asia | 0 | - | 4.97 | 71,517 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,298 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,657 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,084 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,739 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,835 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,038 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,697 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,278 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,655 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,754 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,366 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,376 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,861 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,921 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,821 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,765 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,484 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,579 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,229 |
| Countries with Megacities | 0 | - | 4.99 | 267,269 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,915 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,174 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,231 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,287 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,347 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,390 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,990 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,233 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,260 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,186 |
| Countries by Capital City | 0 | - | 5.00 | 69,443 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,882 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,257 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,986 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,837 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,495 |
| Moved Capital Cities | 0 | - | 4.96 | 74,667 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,580 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,455 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,275 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,042 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,259 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,622 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,325 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,348 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,185 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,697 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,920 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,244 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,642 |
| North American Sports Cities | 0 | - | 4.82 | 173,183 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,564 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 107,044 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,450 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,968 |
| Cities by Former Name | 0 | - | 4.83 | 92,077 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,823 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,994 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,172 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 66,035 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,866 |
| World Capitals by Map | 0 | - | 5.00 | 289,477 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,843 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,087 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,279 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,386 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,429 |
| Random Country to Capital | 0 | - | 4.98 | 928,532 |
| Capitals Starting With H | 0 | - | 4.91 | 93,355 |
| Capitals Starting With K | 0 | - | 4.89 | 84,423 |
| Capitals Starting With M | 0 | - | 4.94 | 109,220 |
| Capitals Starting With P | 0 | - | 4.88 | 79,030 |
| Capitals Starting With R | 0 | - | 4.88 | 82,529 |
| Capitals Starting With S | 0 | - | 4.90 | 86,597 |
| Capitals Starting With T | 0 | - | 4.86 | 76,861 |
| Capitals Starting With W | 0 | - | 4.87 | 91,748 |
| Capitals Starting With A | 0 | - | 4.97 | 129,142 |
| Capitals Starting With B | 0 | - | 4.89 | 119,540 |
| Capitals Starting With D | 0 | - | 4.94 | 97,234 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,717 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,340 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,874 |
| Olympic Host Countries | 0 | - | 4.98 | 202,013 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,982 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,194 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,110 |
| The Only European Country ... | 0 | - | 4.91 | 219,122 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,013 |
| Hindu Countries | 0 | - | 4.87 | 50,590 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,575 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,940 |
| Countries of Africa | 0 | - | 5.00 | 2,560,822 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,736 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,094 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,589 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,218 |
| Australia A-Z | 0 | - | 4.54 | 50,142 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,200 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,445 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,924 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,387 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,706 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,776 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,909 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,719 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,852 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,917 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,551 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,213 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,525 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,869 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,784 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,324 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,743 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,114 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,230 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,788 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,514 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,948 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,535 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,113 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,705 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,600 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,859 |
| Former Capitals | 0 | - | 4.88 | 71,685 |
| Capital Cities Chain | 0 | - | 4.84 | 83,403 |
| Coldest World Capitals | 0 | - | 4.95 | 134,174 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,168 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,230 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,599 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,869 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,950 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,734 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,884 |
| Countries of the Middle East | 0 | - | 4.96 | 202,993 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,212 |
| Slavic Countries | 0 | - | 4.96 | 112,398 |
| African Island Countries | 0 | - | 4.96 | 102,536 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,192 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,174 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,501 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.83 | 53,230 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,691 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,959 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,867 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,850 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,340 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,691 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,191 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,652 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,567 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,568 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,996 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,853 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,101 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 117,833 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,390 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,943 |
