| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,376 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 74,041 |
| Random Capital to Country | 0 | - | 4.99 | 2,604,538 |
| Random Country to Capital | 0 | - | 4.98 | 930,359 |
| Capital Cities Chain | 0 | - | 4.84 | 83,540 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,746 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,359 |
| World Capitals Quiz | 0 | - | 5.00 | 5,115,124 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,495 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,808 |
| 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 | 121,789 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,794 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,725 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,536 |
| Random World Capitals on a Map | 0 | - | 4.93 | 136,053 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,565 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 90,026 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,445 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,971 |
| Name a Valid African Country | 0 | - | 4.98 | 155,295 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,143 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,360 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,051 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,558 |
| Countries with Megacities | 0 | - | 4.99 | 267,982 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,205 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,367 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,534 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,472 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 167,506 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,540 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,590 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,102 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,367 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,475 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,426 |
| Countries by Capital City | 0 | - | 5.00 | 69,670 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,192 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,372 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,519 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,982 |
| 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 | 177,343 |
| Random European Capital to Country | 0 | - | 4.98 | 192,374 |
| Random European Country to Capital | 0 | - | 4.93 | 166,102 |
| Random Asian Country to Capital | 0 | - | 4.92 | 97,100 |
| Random Asian Capital to Country | 0 | - | 4.97 | 103,604 |
| Random African Capital to Country | 0 | - | 4.97 | 101,517 |
| Random African Country to Capital | 0 | - | 4.94 | 71,903 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,830 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,292 |
| Which City in Europe? | 0 | - | 4.83 | 108,014 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,933 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,765 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,137 |
| 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 | 269,562 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,847 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,011 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,385 |
| 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 | 173,320 |
| Summer Olympic City Bids | 0 | - | 4.94 | 42,610 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 103,069 |
| Name a City - European Countries | 0 | - | 4.89 | 66,405 |
| Cities by Former Name | 0 | - | 4.83 | 92,203 |
| Africa Capitals Quiz | 0 | - | 4.99 | 745,226 |
| Asia Capitals Quiz | 0 | - | 4.98 | 700,111 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,993 |
| Nearest Capital City #1 | 0 | - | 4.83 | 58,054 |
| Solve the Secret Capital City | 0 | - | 4.80 | 164,764 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,983 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,502 |
| World Capitals by Map | 0 | - | 5.00 | 290,042 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,949 |
| 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 | 91,806 |
| 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 | 97,334 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,278 |
| Olympic Host Countries | 0 | - | 4.98 | 202,270 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,272 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,524 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 315,239 |
| The Only European Country ... | 0 | - | 4.91 | 219,645 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,389 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,860 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,998 |
| Countries of Africa | 0 | - | 5.00 | 2,565,255 |
| Single Vowel Capitals | 0 | - | 4.83 | 14,775 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,708 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,650 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,986 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,600 |
| 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 | 91,070 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,276 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,056 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,033 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,627 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,293 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,579 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,934 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,885 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,838 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.96 | 111,701 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 47,088 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,846 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 76,382 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,845 |
| 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 | 252,636 |
| Asia Capital to Country | 0 | - | 4.96 | 127,707 |
| EU Capitals with No Hints | 0 | - | 4.96 | 147,320 |
| European Capitals by Map | 0 | - | 4.99 | 142,605 |
| African Capitals by Map | 0 | - | 4.99 | 142,634 |
| Coldest World Capitals | 0 | - | 4.95 | 134,303 |
| Asian Capitals by Map | 0 | - | 4.98 | 64,137 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 93,155 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 85,417 |
| European Coastal Capitals | 0 | - | 4.95 | 91,517 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 53,280 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 273,394 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 226,727 |
| 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 | 22,355 |
| Which City in Canada? | 0 | - | 4.83 | 57,417 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,315 |
| Countries of the Middle East | 0 | - | 4.96 | 203,306 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,392 |
| Slavic Countries | 0 | - | 4.96 | 112,524 |
| Countries by Emojis | 0 | - | 4.99 | 242,899 |
| 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 | 43,251 |
| 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 | 53,705 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,844 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,399 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,033,566 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 128,045 |
| 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 | 145,397 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,191 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,798 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,747 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,088 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 144,988 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,557 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 118,082 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,721 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,094 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,341 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,660 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,346 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,801 |
| 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 | 485,715 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 492,522 |
| Countries that Start with A | 0 | - | 4.98 | 2,178,860 |
| Countries that Start with B | 0 | - | 4.95 | 2,309,475 |
| Countries that Start with C | 0 | - | 4.96 | 1,833,776 |
| Countries that Start with D | 0 | - | 4.96 | 718,056 |
| Countries that Start with E | 0 | - | 4.95 | 1,386,984 |
| Countries that Start with G | 0 | - | 4.97 | 1,513,561 |
| Countries that Start with H | 0 | - | 4.96 | 610,727 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,124 |
| Countries that Start with J | 0 | - | 4.98 | 608,101 |
| Countries that Start with K | 0 | - | 4.97 | 821,938 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,309 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,424 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,538 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,174 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,081 |
| Countries that Start with U | 0 | - | 4.97 | 909,368 |
| Countries that Start with V | 0 | - | 4.98 | 612,658 |
| Countries that Start with F | 0 | - | 4.83 | 622,169 |
| Countries that Start with M | 0 | - | 4.97 | 1,389,860 |
