| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,776 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,373 |
| Random Capital to Country | 0 | - | 4.99 | 2,587,429 |
| Random Country to Capital | 0 | - | 4.98 | 917,824 |
| Capital Cities Chain | 0 | - | 4.84 | 82,445 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 90,636 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,869 |
| World Capitals Quiz | 0 | - | 5.00 | 5,061,398 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,600 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.88 | 11,799 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,248 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,012 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,904 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,614 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,582,128 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,471 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,264 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,215 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,126 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,820 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,724 |
| Name a Valid African Country | 0 | - | 4.98 | 153,718 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,298 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,707 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,583 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,880 |
| Countries with Megacities | 0 | - | 4.99 | 256,460 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,750 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,910 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,046 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,913 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,313 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,806 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,899 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,212 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,239 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,902 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,540 |
| Countries by Capital City | 0 | - | 5.00 | 67,863 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,935 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,430 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,531 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,924 |
| Moved Capital Cities | 0 | - | 4.96 | 74,018 |
| Nordic Countries and Capitals | 0 | - | 4.95 | 83,529 |
| Capitals in Random Squares of the World Map | 0 | - | 4.92 | 75,289 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,810 |
| Random European Capital to Country | 0 | - | 4.98 | 190,590 |
| Random European Country to Capital | 0 | - | 4.93 | 164,406 |
| Random Asian Country to Capital | 0 | - | 4.92 | 96,171 |
| Random Asian Capital to Country | 0 | - | 4.97 | 102,567 |
| Random African Capital to Country | 0 | - | 4.97 | 100,467 |
| Random African Country to Capital | 0 | - | 4.94 | 71,067 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,867 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,735 |
| Which City in Europe? | 0 | - | 4.83 | 107,135 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,502 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,437 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,672 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,275 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,676 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,498 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,323 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,638 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,243 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,324 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,882 |
| Resort Towns by Country | 0 | - | 4.30 | 39,993 |
| North American Sports Cities | 0 | - | 4.83 | 171,724 |
| Summer Olympic City Bids | 0 | - | 4.93 | 42,217 |
| Cities with the Most Metro Rail Stations | 0 | - | 4.89 | 102,218 |
| Name a City - European Countries | 0 | - | 4.90 | 65,156 |
| Cities by Former Name | 0 | - | 4.83 | 91,408 |
| Africa Capitals Quiz | 0 | - | 4.99 | 735,542 |
| Asia Capitals Quiz | 0 | - | 4.98 | 690,783 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,306 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,554 |
| Solve the Secret Capital City | 0 | - | 4.80 | 163,383 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,838 |
| Add A Letter - Make a Capital City | 0 | - | 4.46 | 32,400 |
| World Capitals by Map | 0 | - | 5.00 | 285,490 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 58,133 |
| Capitals Starting With H | 0 | - | 4.90 | 91,910 |
| Capitals Starting With K | 0 | - | 4.85 | 76,084 |
| Capitals Starting With L | 0 | - | 4.81 | 87,315 |
| Capitals Starting With M | 0 | - | 4.93 | 106,863 |
| Capitals Starting With P | 0 | - | 4.88 | 77,596 |
| Capitals Starting With R | 0 | - | 4.87 | 81,353 |
| Capitals Starting With S | 0 | - | 4.89 | 85,241 |
| Capitals Starting With T | 0 | - | 4.84 | 75,700 |
| Capitals Starting With W | 0 | - | 4.87 | 90,971 |
| Capitals Starting With A | 0 | - | 4.97 | 127,173 |
| Capitals Starting With B | 0 | - | 4.89 | 117,817 |
| Capitals Starting With D | 0 | - | 4.93 | 95,888 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,470 |
| Olympic Host Countries | 0 | - | 4.98 | 200,272 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,570 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,774 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 307,772 |
| The Only European Country ... | 0 | - | 4.91 | 215,910 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,671 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,719 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,565 |
| Countries of Africa | 0 | - | 5.00 | 2,529,130 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,031 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,332 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,486 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,169 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,667 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,944 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,126 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,808 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,692 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,065 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,046 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,334 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,137 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,420 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,047 |
| U.S. Cities with the Most Skyscrapers | 0 | - | 4.89 | 95,502 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 110,364 |
| Most Guessed Cities by Country #3 | 0 | - | 4.89 | 45,758 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,479 |
| Most-Visited Cities in Europe | 0 | - | 4.83 | 74,774 |
| Cities with the Biggest Economies | 0 | - | 4.90 | 130,653 |
| Five Most Guessed Cities by Continent | 0 | - | 4.96 | 112,668 |
| Former Capitals | 0 | - | 4.88 | 71,361 |
| Europe Capital to Country | 0 | - | 4.99 | 249,484 |
| Asia Capital to Country | 0 | - | 4.96 | 126,426 |
| EU Capitals with No Hints | 0 | - | 4.96 | 145,525 |
| European Capitals by Map | 0 | - | 4.99 | 138,463 |
| African Capitals by Map | 0 | - | 4.99 | 133,254 |
| Coldest World Capitals | 0 | - | 4.95 | 133,443 |
| Asian Capitals by Map | 0 | - | 4.98 | 62,032 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.88 | 91,845 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.96 | 84,205 |
| European Coastal Capitals | 0 | - | 4.95 | 90,347 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 52,485 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,018 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 223,487 |
| Capitals of Mediterranean Countries | 0 | - | 4.95 | 81,720 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,362 |
| Random Countries and Capitals without Vowels | 0 | - | 4.61 | 21,574 |
| Which City in Canada? | 0 | - | 4.82 | 56,935 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,098 |
| Countries of the Middle East | 0 | - | 4.96 | 200,688 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,969 |
| Slavic Countries | 0 | - | 4.96 | 111,461 |
| Countries by Emojis | 0 | - | 4.99 | 238,498 |
| African Island Countries | 0 | - | 4.96 | 101,392 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,636 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,778 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,744 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 46,328 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,746 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,862 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,020,175 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,621 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,241 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 153,120 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,800 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,605 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,396 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,495 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,503 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 144,066 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,942 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,363 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,966 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,948 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,783 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 33,042 |
| Biggest City by Body of Water | 0 | - | 4.51 | 40,222 |
| Southernmost Major Cities | 0 | - | 4.48 | 57,262 |
| U.S. City Prefixes and Suffixes | 0 | - | 4.48 | 72,791 |
| Cities with the Most Foreign Embassies | 0 | - | 4.68 | 47,112 |
| Random European City to Country | 0 | - | 4.69 | 117,445 |
| Random Asian City to Country | 0 | - | 4.56 | 44,456 |
| U.S. Cities With Spanish Names | 0 | - | 4.94 | 22,931 |
| South America Capitals Quiz | 0 | - | 5.00 | 480,286 |
| Word Scramble - National Capitals | 0 | - | 4.19 | 486,944 |
| Countries that Start with A | 0 | - | 4.98 | 2,158,194 |
| Countries that Start with B | 0 | - | 4.95 | 2,290,228 |
| Countries that Start with C | 0 | - | 4.96 | 1,818,644 |
| Countries that Start with D | 0 | - | 4.96 | 707,237 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,413 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,046 |
| Countries that Start with H | 0 | - | 4.96 | 602,771 |
| Countries that Start with I | 0 | - | 4.92 | 1,285,800 |
| Countries that Start with J | 0 | - | 4.98 | 600,620 |
| Countries that Start with K | 0 | - | 4.97 | 813,728 |
| Countries that Start with L | 0 | - | 4.98 | 1,088,551 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,487 |
| Countries that Start with P | 0 | - | 4.94 | 1,213,999 |
| Countries that Start with S | 0 | - | 4.98 | 1,751,923 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,239 |
| Countries that Start with U | 0 | - | 4.97 | 903,160 |
| Countries that Start with V | 0 | - | 4.98 | 608,237 |
| Countries that Start with F | 0 | - | 4.83 | 616,056 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,243 |
