| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,546 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,130 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,456 |
| Random Country to Capital | 0 | - | 4.98 | 911,883 |
| Capital Cities Chain | 0 | - | 4.84 | 81,947 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,023 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,144 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,943 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,118 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,321 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,406 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,372 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,304 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,594 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,562 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,315 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,557 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,686 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,938 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,086 |
| Name a Valid African Country | 0 | - | 4.98 | 152,980 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,301 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,449 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,753 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,403 |
| Countries with Megacities | 0 | - | 4.99 | 247,186 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,244 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,061 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,676 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,981 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,700 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,821 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,987 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,676 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,629 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,669 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,494 |
| Countries by Capital City | 0 | - | 5.00 | 66,700 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,361 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,925 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,521 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,431 |
| Moved Capital Cities | 0 | - | 4.96 | 73,605 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,104 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,923 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,025 |
| Random European Capital to Country | 0 | - | 4.98 | 189,282 |
| Random European Country to Capital | 0 | - | 4.92 | 147,504 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,425 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,455 |
| Random African Capital to Country | 0 | - | 4.97 | 99,748 |
| Random African Country to Capital | 0 | - | 4.94 | 70,245 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,625 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,005 |
| Which City in Europe? | 0 | - | 4.83 | 106,721 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,626 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,931 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,212 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,874 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,139 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,873 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,995 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,926 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,515 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,646 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,318 |
| Resort Towns by Country | 0 | - | 4.30 | 39,925 |
| North American Sports Cities | 0 | - | 4.83 | 170,942 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,927 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,763 |
| Name a City - European Countries | 0 | - | 4.92 | 64,449 |
| Cities by Former Name | 0 | - | 4.84 | 91,000 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,475 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,143 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,702 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,255 |
| Solve the Secret Capital City | 0 | - | 4.80 | 162,730 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 67,991 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,336 |
| World Capitals by Map | 0 | - | 5.00 | 283,303 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,696 |
| Capitals Starting With H | 0 | - | 4.90 | 91,145 |
| Capitals Starting With K | 0 | - | 4.85 | 75,714 |
| Capitals Starting With L | 0 | - | 4.81 | 86,869 |
| Capitals Starting With M | 0 | - | 4.93 | 106,124 |
| Capitals Starting With P | 0 | - | 4.88 | 77,225 |
| Capitals Starting With R | 0 | - | 4.87 | 81,001 |
| Capitals Starting With S | 0 | - | 4.89 | 84,838 |
| Capitals Starting With T | 0 | - | 4.84 | 75,326 |
| Capitals Starting With W | 0 | - | 4.89 | 90,634 |
| Capitals Starting With A | 0 | - | 4.97 | 126,585 |
| Capitals Starting With B | 0 | - | 4.89 | 117,331 |
| Capitals Starting With D | 0 | - | 4.93 | 95,420 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,077 |
| Olympic Host Countries | 0 | - | 4.98 | 198,936 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,842 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,639 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,786 |
| The Only European Country ... | 0 | - | 4.91 | 213,951 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,216 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,617 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,231 |
| Countries of Africa | 0 | - | 5.00 | 2,508,923 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,178 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,286 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,170 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,384 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,987 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,441 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,631 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,328 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,522 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,338 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,316 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,650 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,596 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,849 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,253 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,327 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,387 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,227 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,192 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,877 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,725 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,365 |
| Former Capitals | 0 | - | 4.88 | 71,153 |
| Europe Capital to Country | 0 | - | 4.99 | 247,996 |
| Asia Capital to Country | 0 | - | 4.96 | 125,789 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,517 |
| European Capitals by Map | 0 | - | 4.99 | 136,395 |
| African Capitals by Map | 0 | - | 4.99 | 132,229 |
| Coldest World Capitals | 0 | - | 4.95 | 133,063 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,182 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,236 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,662 |
| European Coastal Capitals | 0 | - | 4.95 | 89,804 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,204 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,902 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,929 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,434 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,820 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,919 |
| Which City in Canada? | 0 | - | 4.82 | 56,701 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,427 |
| Countries of the Middle East | 0 | - | 4.96 | 199,006 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,299 |
| Slavic Countries | 0 | - | 4.96 | 110,888 |
| Countries by Emojis | 0 | - | 4.99 | 236,270 |
| African Island Countries | 0 | - | 4.96 | 100,820 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,136 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,510 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,537 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,074 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,164 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,168 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,171 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,767 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,529 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,175 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,827 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,666 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,734 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,808 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,165 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,192 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,326 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,605 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,314 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,449 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,288 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,519 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,146 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,119 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,594 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,028 |
| Random European City to Country | 0 | - | 4.69 | 116,572 |
| Random Asian City to Country | 0 | - | 4.56 | 44,395 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,255 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,424 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 484,488 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,332 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,302 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,679 |
| Countries that Start with D | 0 | - | 4.96 | 701,800 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,808 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,138 |
| Countries that Start with H | 0 | - | 4.96 | 598,169 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,513 |
| Countries that Start with J | 0 | - | 4.98 | 596,220 |
| Countries that Start with K | 0 | - | 4.97 | 809,572 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,127 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,993 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,776 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,820 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,380 |
| Countries that Start with U | 0 | - | 4.97 | 900,051 |
| Countries that Start with V | 0 | - | 4.98 | 605,213 |
| Countries that Start with F | 0 | - | 4.83 | 612,353 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,604 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,027 |
