| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,069 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,004 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,586 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,107 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,435 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,417 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,483 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,741 |
| Random European Capital to Country | 0 | - | 4.98 | 190,495 |
| Random European Country to Capital | 0 | - | 4.93 | 164,024 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,040 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,215 |
| Random African Capital to Country | 0 | - | 4.97 | 100,360 |
| Random African Country to Capital | 0 | - | 4.94 | 70,961 |
| World Capitals Quiz | 0 | - | 5.00 | 5,058,829 |
| Europe Capital to Country | 0 | - | 4.99 | 249,363 |
| Asia Capital to Country | 0 | - | 4.96 | 126,360 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,443 |
| European Capitals by Map | 0 | - | 4.99 | 138,325 |
| African Capitals by Map | 0 | - | 4.99 | 133,137 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,948 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,784 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,153 |
| European Coastal Capitals | 0 | - | 4.95 | 90,298 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,445 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,852 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,328 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 81,685 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,563 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,101 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,826 |
| African Capitals - Map Quiz | 0 | - | 4.94 | 62,170 |
| Top 10 Most Remote European Capitals | 0 | - | 4.86 | 93,836 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 118,902 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 87,630 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 82,031 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,023 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 60,994 |
| European Capitals Ending in N | 0 | - | 4.92 | 81,113 |
| Monarchies of Europe | 0 | - | 4.90 | 97,866 |
| Monarchies of Asia | 0 | - | 4.97 | 70,921 |
| Asian Country Superlatives | 0 | - | 4.85 | 80,741 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,185 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,175 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,922 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,071 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,554 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 88,848 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,382 |
| Name a Valid European Capital | 0 | - | 4.95 | 151,928 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,425 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,952 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 120,753 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,628 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,791 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,695 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,778 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,069 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,405 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,717 |
| Countries with Megacities | 0 | - | 4.99 | 249,844 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,554 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,805 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,874 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,798 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,734 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,830 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,186 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,205 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,837 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,443 |
| Countries by Capital City | 0 | - | 5.00 | 67,774 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,892 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,386 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,344 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,884 |
| European Capitals with the Least Sunshine | 0 | - | 4.46 | 50,282 |
| Moved Capital Cities | 0 | - | 4.96 | 73,990 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,688 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 130,120 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,921 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,689 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,046 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,193 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,562 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,440 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,210 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,554 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,199 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,262 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,824 |
| North American Sports Cities | 0 | - | 4.83 | 171,644 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,146 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,664 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 72,562 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,183 |
| Cities by Former Name | 0 | - | 4.83 | 91,369 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,287 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,527 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 40,940 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 65,876 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,780 |
| World Capitals by Map | 0 | - | 5.00 | 285,314 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,093 |
| Random Capital to Country | 0 | - | 4.99 | 2,586,695 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,590 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,866 |
| Random European Capitals on a Map | 0 | - | 4.97 | 134,401 |
| Random Country to Capital | 0 | - | 4.98 | 917,052 |
| Capitals Starting With H | 0 | - | 4.90 | 91,878 |
| Capitals Starting With K | 0 | - | 4.85 | 76,055 |
| Capitals Starting With L | 0 | - | 4.81 | 87,284 |
| Capitals Starting With M | 0 | - | 4.93 | 106,804 |
| Capitals Starting With P | 0 | - | 4.88 | 77,563 |
| Capitals Starting With R | 0 | - | 4.87 | 81,326 |
| Capitals Starting With S | 0 | - | 4.89 | 85,198 |
| Capitals Starting With T | 0 | - | 4.84 | 75,669 |
| Capitals Starting With W | 0 | - | 4.87 | 90,946 |
| Capitals Starting With A | 0 | - | 4.97 | 127,124 |
| Capitals Starting With B | 0 | - | 4.89 | 117,779 |
| Capitals Starting With D | 0 | - | 4.93 | 95,842 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 94,973 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.90 | 48,044 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,337 |
| Olympic Host Countries | 0 | - | 4.98 | 200,024 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,488 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,652 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,355 |
| The Only European Country ... | 0 | - | 4.91 | 215,745 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,549 |
| Hindu Countries | 0 | - | 4.86 | 49,952 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,612 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,539 |
| Countries of Africa | 0 | - | 5.00 | 2,527,465 |
| U.S. State Capitals Map Quiz | 0 | - | 4.93 | 143,377 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,769 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,491 |
| Australia A-Z | 0 | - | 4.54 | 49,928 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,853 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,249 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,447 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,090 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,600 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,892 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,075 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,537 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,616 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,028 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,016 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,107 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,113 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,379 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,009 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,218 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,233 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,778 |
| European Cities A-Z by Clue #1 | 0 | - | 4.25 | 78,566 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,101 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,478 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,296 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,704 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,328 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,728 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,562 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,630 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,886 |
| Former Capitals | 0 | - | 4.88 | 71,346 |
| Capital Cities Chain | 0 | - | 4.83 | 82,401 |
| Coldest World Capitals | 0 | - | 4.95 | 133,415 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,315 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,535 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,576 |
| Random State Capital to U.S. State | 0 | - | 4.84 | 88,766 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,316 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,627 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,921 |
| Countries of the Middle East | 0 | - | 4.96 | 200,577 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,901 |
| Slavic Countries | 0 | - | 4.96 | 111,408 |
| African Island Countries | 0 | - | 4.96 | 101,334 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,758 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,764 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,643 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,194 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,690 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,798 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,507 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,556 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,177 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,036 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,591 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,516 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,336 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,426 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,480 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,766 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,880 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,126 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,897 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,889 |
