| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 228,092 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,775 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,563 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,940 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,846 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,161 |
| Random European Capital to Country | 0 | - | 4.98 | 192,329 |
| Random European Country to Capital | 0 | - | 4.93 | 166,068 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,084 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,549 |
| Random African Capital to Country | 0 | - | 4.97 | 101,464 |
| Random African Country to Capital | 0 | - | 4.94 | 71,878 |
| World Capitals Quiz | 0 | - | 5.00 | 5,112,927 |
| Europe Capital to Country | 0 | - | 4.99 | 252,524 |
| Asia Capital to Country | 0 | - | 4.96 | 127,680 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,246 |
| European Capitals by Map | 0 | - | 4.99 | 142,466 |
| African Capitals by Map | 0 | - | 4.99 | 142,555 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,100 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,095 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,363 |
| European Coastal Capitals | 0 | - | 4.95 | 91,473 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,261 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,219 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,162 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,234 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,493 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,009 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,553 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,610 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 63,354 |
| Top 10 Most Remote European Capitals | 0 | - | 4.87 | 94,710 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 120,293 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 88,478 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,652 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 62,054 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,807 |
| European Countries with One Border | 0 | - | 4.97 | 183,998 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,707 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,469 |
| Countries with Megacities | 0 | - | 4.99 | 267,780 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,117 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,322 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,451 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,422 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,493 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 89,771 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,539 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,075 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,331 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,416 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,358 |
| Countries by Capital City | 0 | - | 5.00 | 69,600 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,122 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,344 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,944 |
| Moved Capital Cities | 0 | - | 4.96 | 74,726 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,931 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,677 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,742 |
| Countries That Border Russia | 0 | - | 4.98 | 464,847 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,528 |
| Countries Bordering France | 0 | - | 4.83 | 405,287 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,178 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,857 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,932 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,369 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 131,575 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,928 |
| Countries Bordering India | 0 | - | 4.98 | 163,876 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,085 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,024 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,743 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,138 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,894 |
| Countries that Border China | 0 | - | 4.96 | 264,491 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,186 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,201 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,250 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,904 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,190 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,936 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,958 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,347 |
| Countries that Border Poland | 0 | - | 4.99 | 173,323 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,761 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,451 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,500 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,801 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,990 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,352 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,711 |
| North American Sports Cities | 0 | - | 4.82 | 173,282 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,596 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,042 |
| Cities by Former Name | 0 | - | 4.83 | 92,171 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,976 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,035 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,956 |
| World Capitals by Map | 0 | - | 5.00 | 289,883 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,917 |
| Random Capital to Country | 0 | - | 4.99 | 2,603,903 |
| Random Country to Capital | 0 | - | 4.98 | 929,826 |
| Capitals Starting With H | 0 | - | 4.91 | 93,435 |
| Capitals Starting With K | 0 | - | 4.88 | 84,499 |
| Capitals Starting With L | 0 | - | 4.81 | 96,073 |
| Capitals Starting With M | 0 | - | 4.94 | 109,350 |
| Capitals Starting With P | 0 | - | 4.88 | 79,115 |
| Capitals Starting With R | 0 | - | 4.88 | 82,598 |
| Capitals Starting With S | 0 | - | 4.90 | 86,684 |
| Capitals Starting With T | 0 | - | 4.86 | 76,933 |
| Capitals Starting With W | 0 | - | 4.87 | 91,787 |
| Capitals Starting With A | 0 | - | 4.97 | 129,258 |
| Capitals Starting With B | 0 | - | 4.89 | 119,630 |
| Capitals Starting With D | 0 | - | 4.94 | 97,306 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,159 |
| Olympic Host Countries | 0 | - | 4.98 | 202,179 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,221 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,438 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 314,888 |
| The Only European Country ... | 0 | - | 4.91 | 219,510 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,281 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,790 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,976 |
| Countries of Africa | 0 | - | 5.00 | 2,563,993 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,874 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 418,189 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 41,201 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,314 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,432 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,555 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 95,825 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,374 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,340 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,569 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,590 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,967 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,540 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,836 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,879 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,026 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,844 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,003 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,001 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,601 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,275 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,570 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,918 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,857 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,340 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,779 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,148 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,238 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,826 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,658 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,048 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,746 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,317 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,802 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,685 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,967 |
| Former Capitals | 0 | - | 4.88 | 71,722 |
| Capital Cities Chain | 0 | - | 4.84 | 83,506 |
| Solve the Secret Capital City | 0 | - | 4.81 | 164,717 |
| Coldest World Capitals | 0 | - | 4.95 | 134,270 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,241 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,325 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,702 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 151,342 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,935 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,194 |
| Countries of the Middle East | 0 | - | 4.96 | 203,218 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,342 |
| Slavic Countries | 0 | - | 4.96 | 112,485 |
| African Island Countries | 0 | - | 4.96 | 102,714 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,235 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,707 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,533 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,791 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,109 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,048 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,987 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,460 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,927 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,341 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,113 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,746 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,700 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,070 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,963 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,498 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,039 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,665 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,056 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,294 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,299 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,893 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,623 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 89,973 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,413 |
