| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,017 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,647 |
| Random Capital to Country | 0 | - | 4.99 | 2,595,063 |
| Random Country to Capital | 0 | - | 4.98 | 923,063 |
| Capital Cities Chain | 0 | - | 4.84 | 82,978 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,132 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,974 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,140 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 48,983 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,365 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,959 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,577 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,293 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,820 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,298 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,437 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,910 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,782 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,530 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,265 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,255 |
| Name a Valid African Country | 0 | - | 4.98 | 154,393 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,076 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,692 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,088 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,979 |
| Countries with Megacities | 0 | - | 4.99 | 264,747 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,816 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,517 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,071 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,591 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,856 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,604 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,573 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,573 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,711 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,528 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,373 |
| Countries by Capital City | 0 | - | 5.00 | 68,676 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,399 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,838 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,221 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,434 |
| Moved Capital Cities | 0 | - | 4.96 | 74,368 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,808 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,669 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,504 |
| Random European Capital to Country | 0 | - | 4.98 | 191,499 |
| Random European Country to Capital | 0 | - | 4.93 | 165,418 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,620 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,020 |
| Random African Capital to Country | 0 | - | 4.97 | 100,929 |
| Random African Country to Capital | 0 | - | 4.94 | 71,393 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,734 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,395 |
| Which City in Europe? | 0 | - | 4.83 | 107,588 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,851 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,079 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,116 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,529 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,091 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,971 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,263 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,201 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,592 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,769 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,246 |
| Resort Towns by Country | 0 | - | 4.30 | 40,038 |
| North American Sports Cities | 0 | - | 4.83 | 172,668 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,411 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,587 |
| Name a City - European Countries | 0 | - | 4.90 | 65,642 |
| Cities by Former Name | 0 | - | 4.83 | 91,741 |
| Africa Capitals Quiz | 0 | - | 4.99 | 739,978 |
| Asia Capitals Quiz | 0 | - | 4.98 | 694,929 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,496 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,769 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,795 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,423 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,451 |
| World Capitals by Map | 0 | - | 5.00 | 287,552 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,488 |
| Capitals Starting With H | 0 | - | 4.91 | 92,742 |
| Capitals Starting With K | 0 | - | 4.88 | 83,793 |
| Capitals Starting With L | 0 | - | 4.81 | 88,265 |
| Capitals Starting With M | 0 | - | 4.93 | 108,095 |
| Capitals Starting With P | 0 | - | 4.88 | 78,365 |
| Capitals Starting With R | 0 | - | 4.87 | 81,991 |
| Capitals Starting With S | 0 | - | 4.90 | 85,971 |
| Capitals Starting With T | 0 | - | 4.84 | 76,323 |
| Capitals Starting With W | 0 | - | 4.87 | 91,407 |
| Capitals Starting With A | 0 | - | 4.97 | 128,313 |
| Capitals Starting With B | 0 | - | 4.89 | 118,733 |
| Capitals Starting With D | 0 | - | 4.93 | 96,645 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,628 |
| Olympic Host Countries | 0 | - | 4.98 | 201,152 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 47,130 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,734 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 310,943 |
| The Only European Country ... | 0 | - | 4.91 | 217,462 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,857 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,623 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,745 |
| Countries of Africa | 0 | - | 5.00 | 2,545,738 |
| Single Vowel Capitals | 0 | - | 4.81 | 14,555 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,550 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,900 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,716 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,761 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,177 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,352 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,513 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,997 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,262 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,530 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,315 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,938 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,352 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,651 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,425 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,631 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 110,987 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 46,232 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,543 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 75,417 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,118 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,965 |
| Former Capitals | 0 | - | 4.88 | 71,531 |
| Europe Capital to Country | 0 | - | 4.99 | 250,932 |
| Asia Capital to Country | 0 | - | 4.96 | 126,889 |
| EU Capitals with No Hints | 0 | - | 4.96 | 146,233 |
| European Capitals by Map | 0 | - | 4.99 | 140,036 |
| African Capitals by Map | 0 | - | 4.99 | 134,203 |
| Coldest World Capitals | 0 | - | 4.95 | 133,669 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,670 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 92,314 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,654 |
| European Coastal Capitals | 0 | - | 4.95 | 90,842 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,683 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 270,934 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 224,630 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,934 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,784 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,955 |
| Which City in Canada? | 0 | - | 4.83 | 57,152 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,439 |
| Countries of the Middle East | 0 | - | 4.96 | 201,741 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,593 |
| Slavic Countries | 0 | - | 4.96 | 111,909 |
| Countries by Emojis | 0 | - | 4.99 | 240,505 |
| African Island Countries | 0 | - | 4.96 | 101,897 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,137 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,967 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,679 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 49,168 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,226 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,393 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,026,123 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,264 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,817 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,882 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,652 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 217,400 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,954 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,055 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,726 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,423 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,461 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,812 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 161,505 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,385 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,241 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,450 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,265 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,503 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,953 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,177 |
| Random European City to Country | 0 | - | 4.69 | 117,903 |
| Random Asian City to Country | 0 | - | 4.56 | 44,562 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 23,436 |
| South America Capitals Quiz | 0 | - | 5.00 | 482,702 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 489,427 |
| Countries that Start with A | 0 | - | 4.98 | 2,167,120 |
| Countries that Start with B | 0 | - | 4.95 | 2,298,477 |
| Countries that Start with C | 0 | - | 4.96 | 1,825,316 |
| Countries that Start with D | 0 | - | 4.96 | 711,975 |
| Countries that Start with E | 0 | - | 4.95 | 1,379,922 |
| Countries that Start with G | 0 | - | 4.97 | 1,506,179 |
| Countries that Start with H | 0 | - | 4.96 | 606,405 |
| Countries that Start with I | 0 | - | 4.92 | 1,290,454 |
| Countries that Start with J | 0 | - | 4.98 | 604,002 |
| Countries that Start with K | 0 | - | 4.97 | 817,549 |
| Countries that Start with L | 0 | - | 4.98 | 1,092,807 |
| Countries that Start with N | 0 | - | 4.93 | 1,119,883 |
| Countries that Start with P | 0 | - | 4.94 | 1,218,243 |
| Countries that Start with S | 0 | - | 4.98 | 1,757,811 |
| Countries that Start with T | 0 | - | 4.90 | 1,011,437 |
| Countries that Start with U | 0 | - | 4.97 | 905,771 |
| Countries that Start with V | 0 | - | 4.98 | 610,229 |
| Countries that Start with F | 0 | - | 4.83 | 618,864 |
