| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,229 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,071 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,883 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,437 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,953 |
| Europe Capital to Country | 0 | - | 4.99 | 247,426 |
| Asia Capital to Country | 0 | - | 4.96 | 125,690 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,387 |
| European Capitals by Map | 0 | - | 4.99 | 136,122 |
| African Capitals by Map | 0 | - | 4.99 | 132,104 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,057 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,125 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,570 |
| European Coastal Capitals | 0 | - | 4.95 | 89,703 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,163 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,614 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,663 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,402 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 82,988 |
| Random European Capital to Country | 0 | - | 4.98 | 189,136 |
| Random European Country to Capital | 0 | - | 4.92 | 147,386 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,326 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,361 |
| Random African Capital to Country | 0 | - | 4.97 | 99,701 |
| Random African Country to Capital | 0 | - | 4.94 | 70,195 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,440 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,182 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,052 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,744 |
| African Capitals - Map Quiz | 0 | - | 4.93 | 61,612 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,372 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,069 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,130 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 81,676 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,408 |
| European Capitals Ending in N | 0 | - | 4.92 | 80,737 |
| Capitals of the Stans | 0 | - | 4.95 | 26,386 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,983 |
| Countries with Megacities | 0 | - | 4.99 | 246,494 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,901 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,789 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,363 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,747 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,682 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,881 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,611 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,561 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,547 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,333 |
| Countries by Capital City | 0 | - | 5.00 | 66,557 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,280 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,864 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,383 |
| Moved Capital Cities | 0 | - | 4.96 | 73,552 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,490 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,381 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,446 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,202 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,357 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,770 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,641 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,772 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,815 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,821 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,439 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,537 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,201 |
| North American Sports Cities | 0 | - | 4.83 | 170,839 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,903 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,681 |
| Name a City - European Countries | 0 | - | 4.92 | 64,333 |
| Cities by Former Name | 0 | - | 4.84 | 90,925 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,671 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,219 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 129,382 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,171 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,868 |
| World Capitals by Map | 0 | - | 5.00 | 283,041 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,627 |
| Capitals Starting With H | 0 | - | 4.90 | 90,527 |
| Capitals Starting With K | 0 | - | 4.85 | 75,639 |
| Capitals Starting With L | 0 | - | 4.81 | 86,775 |
| Capitals Starting With M | 0 | - | 4.93 | 105,976 |
| Capitals Starting With P | 0 | - | 4.88 | 77,141 |
| Capitals Starting With R | 0 | - | 4.87 | 80,928 |
| Capitals Starting With S | 0 | - | 4.89 | 84,758 |
| Capitals Starting With T | 0 | - | 4.84 | 75,254 |
| Capitals Starting With W | 0 | - | 4.89 | 90,573 |
| Capitals Starting With A | 0 | - | 4.97 | 126,479 |
| Capitals Starting With B | 0 | - | 4.89 | 117,225 |
| Capitals Starting With D | 0 | - | 4.93 | 95,327 |
| Countries That Use the Euro | 0 | - | 4.96 | 102,869 |
| Olympic Host Countries | 0 | - | 4.98 | 198,822 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,775 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,450 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,185 |
| The Only European Country ... | 0 | - | 4.91 | 213,676 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,007 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,438 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,173 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,259 |
| Random Country to Capital | 0 | - | 4.98 | 911,171 |
| Countries of Africa | 0 | - | 5.00 | 2,506,305 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,138 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,079 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,563 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,016 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,085 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,788 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,234 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,593 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,786 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,486 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 47,865 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,909 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,136 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,111 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,252 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,848 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,354 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,530 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,252 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,479 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,393 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,233 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,215 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,560 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,525 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,760 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,157 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,290 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,306 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,151 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,011 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,739 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,616 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,300 |
| Former Capitals | 0 | - | 4.88 | 71,121 |
| Capital Cities Chain | 0 | - | 4.84 | 81,874 |
| Coldest World Capitals | 0 | - | 4.95 | 133,020 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,743 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,788 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,950 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,330 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,203 |
| Countries of the Middle East | 0 | - | 4.96 | 198,817 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,204 |
| Slavic Countries | 0 | - | 4.96 | 110,812 |
| African Island Countries | 0 | - | 4.96 | 100,727 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,476 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,267 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 44,929 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,062 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,034 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,147 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,655 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,427 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,021 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,733 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,562 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,658 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,719 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,130 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,128 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,252 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,527 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,206 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,368 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,192 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,468 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 142,292 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,232 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,224 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,809 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,830 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,912 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,777 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,946 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,601 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,795 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,333 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,832 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,904 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,544 |
| Unusual U.S. City Names | 0 | - | 4.51 | 27,559 |
| Northernmost Major Cities | 0 | - | 4.08 | 56,407 |
| Biggest Cities Named for Saints | 0 | - | 4.36 | 95,321 |
| Biggest U.S. Cities with 4 or 5 Letters | 0 | - | 4.35 | 44,529 |
| Lonely Planet Top 200 Cities | 0 | - | 4.52 | 219,974 |
| Ancient City to Country | 0 | - | 4.70 | 107,589 |
| Official Cities in the UK | 0 | - | 4.89 | 280,373 |
| Most Appealing Cities for Working Abroad | 0 | - | 4.38 | 36,091 |
| City-States | 0 | - | 4.53 | 37,087 |
| Cities by Latitude Longitude Coordinates | 0 | - | 4.45 | 8,549 |
| Cities with the Most International Tourists | 0 | - | 4.45 | 53,769 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,473 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,077 |
| City to Country - Tile Select #1 | 0 | - | 4.70 | 37,037 |
