| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,090 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,772 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,561 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,914 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,791 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,160 |
| Random European Capital to Country | 0 | - | 4.98 | 192,324 |
| Random European Country to Capital | 0 | - | 4.93 | 166,055 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,080 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,544 |
| Random African Capital to Country | 0 | - | 4.97 | 101,447 |
| Random African Country to Capital | 0 | - | 4.94 | 71,867 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,621 |
| Europe Capital to Country | 0 | - | 4.99 | 252,510 |
| Asia Capital to Country | 0 | - | 4.96 | 127,674 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,234 |
| European Capitals by Map | 0 | - | 4.99 | 142,454 |
| African Capitals by Map | 0 | - | 4.99 | 142,543 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,100 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,091 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,353 |
| European Coastal Capitals | 0 | - | 4.95 | 91,468 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,261 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,194 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,149 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,234 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,448 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,884 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,533 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,604 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,350 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,708 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,283 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,473 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,652 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,051 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,805 |
| European Countries with One Border | 0 | - | 4.97 | 183,993 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,698 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,460 |
| Countries with Megacities | 0 | - | 4.99 | 267,759 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,112 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,314 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,439 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,418 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,486 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,767 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,536 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,075 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,324 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,408 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,346 |
| Countries by Capital City | 0 | - | 5.00 | 69,586 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,117 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,339 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,935 |
| Moved Capital Cities | 0 | - | 4.96 | 74,721 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,922 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,672 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,732 |
| Countries That Border Russia | 0 | - | 4.98 | 464,822 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,525 |
| Countries Bordering France | 0 | - | 4.83 | 405,265 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,158 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,789 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,904 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,335 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,573 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,926 |
| Countries Bordering India | 0 | - | 4.98 | 163,876 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,078 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,020 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,743 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,131 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,894 |
| Countries that Border China | 0 | - | 4.96 | 264,483 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,182 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,199 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,247 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,900 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,187 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,935 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,954 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,344 |
| Countries that Border Poland | 0 | - | 4.99 | 173,318 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,759 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,445 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,492 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,794 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,988 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,347 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,707 |
| North American Sports Cities | 0 | - | 4.82 | 173,269 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,596 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,035 |
| Cities by Former Name | 0 | - | 4.83 | 92,170 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,975 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,032 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,950 |
| World Capitals by Map | 0 | - | 5.00 | 289,860 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,913 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,802 |
| Random Country to Capital | 0 | - | 4.98 | 929,790 |
| Capitals Starting With H | 0 | - | 4.91 | 93,429 |
| Capitals Starting With K | 0 | - | 4.88 | 84,493 |
| Capitals Starting With L | 0 | - | 4.81 | 96,063 |
| Capitals Starting With M | 0 | - | 4.94 | 109,340 |
| Capitals Starting With P | 0 | - | 4.88 | 79,109 |
| Capitals Starting With R | 0 | - | 4.88 | 82,593 |
| Capitals Starting With S | 0 | - | 4.90 | 86,681 |
| Capitals Starting With T | 0 | - | 4.86 | 76,930 |
| Capitals Starting With W | 0 | - | 4.87 | 91,783 |
| Capitals Starting With A | 0 | - | 4.97 | 129,252 |
| Capitals Starting With B | 0 | - | 4.89 | 119,626 |
| Capitals Starting With D | 0 | - | 4.94 | 97,303 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,137 |
| Olympic Host Countries | 0 | - | 4.98 | 202,176 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,215 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,426 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,848 |
| The Only European Country ... | 0 | - | 4.91 | 219,490 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,262 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,779 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,972 |
| Countries of Africa | 0 | - | 5.00 | 2,563,778 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,864 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 418,170 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,199 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,308 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,422 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,548 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,811 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,371 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,340 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,545 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,584 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,963 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,535 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,824 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,870 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,022 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,835 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,991 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,997 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,599 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,274 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,566 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,915 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,853 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,338 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,773 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,147 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,238 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,825 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,652 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,044 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,741 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,305 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,795 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,678 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,958 |
| Former Capitals | 0 | - | 4.88 | 71,719 |
| Capital Cities Chain | 0 | - | 4.84 | 83,499 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,700 |
| Coldest World Capitals | 0 | - | 4.95 | 134,263 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,239 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,324 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,700 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,331 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,881 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,180 |
| Countries of the Middle East | 0 | - | 4.96 | 203,206 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,338 |
| Slavic Countries | 0 | - | 4.96 | 112,481 |
| African Island Countries | 0 | - | 4.96 | 102,705 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,232 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,692 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,519 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,788 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,100 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,985 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,976 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,457 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,907 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,335 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,096 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,738 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,693 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,068 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,962 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,493 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,035 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,656 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,052 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,289 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,232 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,890 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,620 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,963 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,409 |
