| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,376 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,042 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,548 |
| Random Country to Capital | 0 | - | 4.98 | 930,363 |
| Capital Cities Chain | 0 | - | 4.84 | 83,541 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,747 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,361 |
| World Capitals Quiz | 0 | - | 5.00 | 5,115,176 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,497 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,810 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,181 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,319 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,791 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,804 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,736 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,539 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,054 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,567 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,027 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,450 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,973 |
| Name a Valid African Country | 0 | - | 4.98 | 155,296 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,144 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,368 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,053 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,558 |
| Countries with Megacities | 0 | - | 4.99 | 267,985 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,210 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,368 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,535 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,472 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,507 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,541 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,592 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,103 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,368 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,476 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,427 |
| Countries by Capital City | 0 | - | 5.00 | 69,673 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,193 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,373 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,525 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,983 |
| Moved Capital Cities | 0 | - | 4.96 | 74,744 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 84,173 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 76,189 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,345 |
| Random European Capital to Country | 0 | - | 4.98 | 192,374 |
| Random European Country to Capital | 0 | - | 4.93 | 166,103 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,101 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,607 |
| Random African Capital to Country | 0 | - | 4.97 | 101,517 |
| Random African Country to Capital | 0 | - | 4.95 | 71,905 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,831 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,293 |
| Which City in Europe? | 0 | - | 4.83 | 108,015 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,934 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,766 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,138 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,594 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,483 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,563 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,847 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,012 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,388 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,743 |
| Resort Towns by Country | 0 | - | 4.30 | 40,101 |
| North American Sports Cities | 0 | - | 4.82 | 173,321 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,610 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,070 |
| Name a City - European Countries | 0 | - | 4.89 | 66,405 |
| Cities by Former Name | 0 | - | 4.83 | 92,204 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,228 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,118 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,993 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,056 |
| Solve the Secret Capital City | 0 | - | 4.80 | 164,765 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,987 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,502 |
| World Capitals by Map | 0 | - | 5.00 | 290,046 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,950 |
| Capitals Starting With H | 0 | - | 4.91 | 93,469 |
| Capitals Starting With K | 0 | - | 4.89 | 84,529 |
| Capitals Starting With L | 0 | - | 4.81 | 96,116 |
| Capitals Starting With M | 0 | - | 4.94 | 109,403 |
| Capitals Starting With P | 0 | - | 4.88 | 79,142 |
| Capitals Starting With R | 0 | - | 4.89 | 82,627 |
| Capitals Starting With S | 0 | - | 4.90 | 86,714 |
| Capitals Starting With T | 0 | - | 4.86 | 76,965 |
| Capitals Starting With W | 0 | - | 4.87 | 91,807 |
| Capitals Starting With A | 0 | - | 4.97 | 129,312 |
| Capitals Starting With B | 0 | - | 4.89 | 119,677 |
| Capitals Starting With D | 0 | - | 4.94 | 97,336 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,281 |
| Olympic Host Countries | 0 | - | 4.98 | 202,272 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,272 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,525 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 315,243 |
| The Only European Country ... | 0 | - | 4.91 | 219,647 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,394 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,861 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,998 |
| Countries of Africa | 0 | - | 5.00 | 2,565,292 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,775 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,712 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,654 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,986 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,603 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,913 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,073 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,278 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,061 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,033 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,628 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,294 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,580 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,935 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,886 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,838 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,702 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,090 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,849 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,382 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,847 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 113,711 |
| Former Capitals | 0 | - | 4.88 | 71,735 |
| Europe Capital to Country | 0 | - | 4.99 | 252,637 |
| Asia Capital to Country | 0 | - | 4.96 | 127,708 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,320 |
| European Capitals by Map | 0 | - | 4.99 | 142,611 |
| African Capitals by Map | 0 | - | 4.99 | 142,639 |
| Coldest World Capitals | 0 | - | 4.95 | 134,303 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,138 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,156 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,417 |
| European Coastal Capitals | 0 | - | 4.95 | 91,518 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,281 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,396 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,746 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 82,261 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 78,272 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 22,359 |
| Which City in Canada? | 0 | - | 4.83 | 57,417 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,318 |
| Countries of the Middle East | 0 | - | 4.96 | 203,307 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,392 |
| Slavic Countries | 0 | - | 4.96 | 112,524 |
| Countries by Emojis | 0 | - | 4.99 | 242,901 |
| African Island Countries | 0 | - | 4.96 | 102,755 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,732 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,252 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,772 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,710 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,847 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,412 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,579 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 128,047 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,507 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 154,993 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,398 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,194 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,800 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,748 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,088 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,989 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,559 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,082 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,722 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,094 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,342 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,670 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,346 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,802 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 73,160 |
| Cities with the Most Foreign Embassies | 0 | - | 4.69 | 47,244 |
| Random European City to Country | 0 | - | 4.69 | 118,558 |
| Random Asian City to Country | 0 | - | 4.56 | 44,641 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 24,002 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,720 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 492,524 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,881 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,498 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,791 |
| Countries that Start with D | 0 | - | 4.96 | 718,069 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,997 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,581 |
| Countries that Start with H | 0 | - | 4.96 | 610,740 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,135 |
| Countries that Start with J | 0 | - | 4.98 | 608,110 |
| Countries that Start with K | 0 | - | 4.97 | 821,946 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,317 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,430 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,543 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,183 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,087 |
| Countries that Start with U | 0 | - | 4.97 | 909,371 |
| Countries that Start with V | 0 | - | 4.98 | 612,661 |
| Countries that Start with F | 0 | - | 4.83 | 622,178 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,870 |
