| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,552 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,135 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,643 |
| Random Country to Capital | 0 | - | 4.98 | 912,021 |
| Capital Cities Chain | 0 | - | 4.84 | 81,953 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,026 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,338 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,485 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,123 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,335 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,411 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,379 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,440 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,765 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,576 |
| Random World Capitals on a Map | 0 | - | 4.93 | 133,332 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,567 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 88,693 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,990 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,097 |
| Name a Valid African Country | 0 | - | 4.98 | 152,994 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,312 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,604 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,786 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,455 |
| Countries with Megacities | 0 | - | 4.99 | 247,276 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,289 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,095 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,720 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,021 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 165,714 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,835 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,009 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,686 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,632 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,692 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,509 |
| Countries by Capital City | 0 | - | 5.00 | 66,727 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,372 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,938 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,571 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,436 |
| Moved Capital Cities | 0 | - | 4.96 | 73,619 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,117 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 74,928 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,039 |
| Random European Capital to Country | 0 | - | 4.98 | 189,308 |
| Random European Country to Capital | 0 | - | 4.92 | 147,522 |
| Random Asian Country to Capital | 0 | - | 4.92 | 95,433 |
| Random Asian Capital to Country | 0 | - | 4.97 | 101,487 |
| Random African Capital to Country | 0 | - | 4.97 | 99,754 |
| Random African Country to Capital | 0 | - | 4.94 | 70,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,642 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,014 |
| Which City in Europe? | 0 | - | 4.83 | 106,740 |
| Countries that Beat the United States | 0 | - | 4.93 | 165,644 |
| Countries that Beat Russia | 0 | - | 4.84 | 81,936 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,219 |
| Countries that Beat Canada | 0 | - | 4.90 | 86,884 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,145 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,881 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,036 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,942 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,520 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,663 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,336 |
| Resort Towns by Country | 0 | - | 4.30 | 39,927 |
| North American Sports Cities | 0 | - | 4.83 | 170,958 |
| Summer Olympic City Bids | 0 | - | 4.93 | 41,929 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 101,772 |
| Name a City - European Countries | 0 | - | 4.92 | 64,473 |
| Cities by Former Name | 0 | - | 4.84 | 91,007 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,572 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,245 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,702 |
| Nearest Capital City #1 | 0 | - | 4.84 | 57,260 |
| Solve the Secret Capital City | 0 | - | 4.80 | 162,744 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,006 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,337 |
| World Capitals by Map | 0 | - | 5.00 | 283,330 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 57,699 |
| Capitals Starting With H | 0 | - | 4.90 | 91,193 |
| Capitals Starting With K | 0 | - | 4.85 | 75,724 |
| Capitals Starting With L | 0 | - | 4.81 | 86,885 |
| Capitals Starting With M | 0 | - | 4.93 | 106,143 |
| Capitals Starting With P | 0 | - | 4.88 | 77,238 |
| Capitals Starting With R | 0 | - | 4.87 | 81,014 |
| Capitals Starting With S | 0 | - | 4.89 | 84,849 |
| Capitals Starting With T | 0 | - | 4.84 | 75,335 |
| Capitals Starting With W | 0 | - | 4.89 | 90,650 |
| Capitals Starting With A | 0 | - | 4.97 | 126,596 |
| Capitals Starting With B | 0 | - | 4.89 | 117,344 |
| Capitals Starting With D | 0 | - | 4.93 | 95,435 |
| Countries That Use the Euro | 0 | - | 4.96 | 103,104 |
| Olympic Host Countries | 0 | - | 4.98 | 198,953 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 45,859 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 113,664 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,853 |
| The Only European Country ... | 0 | - | 4.91 | 213,980 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,240 |
| European Countries NOT in NATO | 0 | - | 4.87 | 59,641 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,235 |
| Countries of Africa | 0 | - | 5.00 | 2,509,310 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,204 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,307 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,175 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,406 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,011 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,458 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,645 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,338 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,541 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,354 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,329 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,667 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,608 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,860 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,268 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,328 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 109,399 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,241 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,216 |
| Most-Visited Cities in Europe | 0 | - | 4.82 | 73,904 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 129,737 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,368 |
| Former Capitals | 0 | - | 4.88 | 71,153 |
| Europe Capital to Country | 0 | - | 4.99 | 248,031 |
| Asia Capital to Country | 0 | - | 4.96 | 125,799 |
| EU Capitals with No Hints | 0 | - | 4.96 | 144,549 |
| European Capitals by Map | 0 | - | 4.99 | 136,450 |
| African Capitals by Map | 0 | - | 4.99 | 132,243 |
| Coldest World Capitals | 0 | - | 4.95 | 133,066 |
| Asian Capitals by Map | 0 | - | 4.98 | 61,230 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,262 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 83,673 |
| European Coastal Capitals | 0 | - | 4.95 | 89,827 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,207 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,943 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,947 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,441 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 76,829 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 20,934 |
| Which City in Canada? | 0 | - | 4.82 | 56,712 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,455 |
| Countries of the Middle East | 0 | - | 4.96 | 199,040 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,311 |
| Slavic Countries | 0 | - | 4.96 | 110,899 |
| Countries by Emojis | 0 | - | 4.99 | 236,305 |
| African Island Countries | 0 | - | 4.96 | 100,833 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,145 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,514 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,567 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 45,086 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,176 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,180 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,323 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 125,792 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 106,546 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,202 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 142,842 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,685 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 191,745 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 152,833 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,168 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,197 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,339 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,620 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,324 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,458 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,294 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,526 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,148 |
| Southernmost Major Cities | 0 | - | 4.44 | 51,121 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.47 | 72,598 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,033 |
| Random European City to Country | 0 | - | 4.69 | 116,685 |
| Random Asian City to Country | 0 | - | 4.56 | 44,397 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,275 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,473 |
| Word Scramble - National Capitals | 0 | - | 4.20 | 484,536 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,546 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,474 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,848 |
| Countries that Start with D | 0 | - | 4.96 | 701,912 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,939 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,292 |
| Countries that Start with H | 0 | - | 4.96 | 598,260 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,611 |
| Countries that Start with J | 0 | - | 4.98 | 596,314 |
| Countries that Start with K | 0 | - | 4.97 | 809,661 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,217 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,101 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,871 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,984 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,471 |
| Countries that Start with U | 0 | - | 4.97 | 900,115 |
| Countries that Start with V | 0 | - | 4.98 | 605,276 |
| Countries that Start with F | 0 | - | 4.83 | 612,433 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,719 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 231,042 |
