| Top Five Countries By Category #1 | 0 | - | 4.99 | 451,362 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,351 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,358 |
| Top Five Countries By Category #2 | 0 | - | 4.93 | 200,950 |
| Top Five Countries By Category #3 | 0 | - | 4.83 | 183,193 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,237 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,098 |
| Five Biggest Immigrant Groups by Country #2 | 0 | - | 4.91 | 89,302 |
| Top Five Countries By Fruit Production | 0 | - | 4.96 | 79,988 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,786 |
| Countries with Megacities | 0 | - | 4.99 | 264,318 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,646 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,411 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,905 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,478 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,511 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,816 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,356 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,630,058 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,013 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,858 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,098 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,080 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,520 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,683 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,184 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,203 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,927 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,679 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,637 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 134,554 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,048 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,706 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,175 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,084 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,230 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,766 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,831 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,936 |
| Name a Valid World City | 0 | - | 4.83 | 71,393 |
| Solve the Secret Country #1 | 0 | - | 4.94 | 166,186 |
| Solve the Secret Country #2 | 0 | - | 4.87 | 118,767 |
| Anagram Chain - Countries | 0 | - | 4.98 | 116,713 |
| Countries but all Vowels are Changed to O | 0 | - | 4.91 | 69,875 |
| Solve the Secret Country #3 | 0 | - | 4.98 | 64,844 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 418,446 |
| Biggest Cities in the United States | 0 | - | 4.94 | 980,296 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,595 |
| Random Capital to Country | 0 | - | 4.99 | 2,593,624 |
| Random Country to Capital | 0 | - | 4.98 | 922,149 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,104,352 |
| Countries with Four Letters | 0 | - | 4.99 | 423,124 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,899 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,285 |
| Countries of Europe by Population | 0 | - | 4.98 | 181,277 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,806 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,681 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,653 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,087 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,282 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,451 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,951 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,972 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,864 |
| Largest City by Island | 0 | - | 4.87 | 72,010 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,116 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,125 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,689 |
| Megacities on a World Map | 0 | - | 4.98 | 255,129 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 579,069 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,470 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,111 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,027 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,929 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,610 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,161 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,442 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,279 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,869 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,312 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,612 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,378 |
| Capital Cities Chain | 0 | - | 4.83 | 82,885 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 91,049 |
| Country Chain | 0 | - | 4.96 | 217,322 |
| Countries by Emojis | 0 | - | 4.99 | 240,195 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,055 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 321,517 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,123 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,280 |
| Islands by Country #1 | 0 | - | 4.88 | 175,414 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,608 |
| Regions of Countries #2 | 0 | - | 4.95 | 123,987 |
| Regions of Countries #3 | 0 | - | 4.85 | 90,785 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 217,220 |
| Name a Valid Country #3 | 0 | - | 4.99 | 263,490 |
| Name a Valid Country #1 | 0 | - | 4.99 | 290,874 |
| Name a Valid Country #2 | 0 | - | 4.98 | 251,271 |
| Name a Valid Country #4 | 0 | - | 4.97 | 256,411 |
| Name a Valid Country #5 | 0 | - | 4.99 | 207,472 |
| Name a Valid Country #6 | 0 | - | 4.94 | 129,829 |
| Name a Valid Country #7 | 0 | - | 4.91 | 129,602 |
| Name a Valid Country #8 | 0 | - | 4.86 | 98,950 |
| Name a Valid Country #10 | 0 | - | 4.93 | 43,132 |
| Countries by Languages in 90 Seconds | 0 | - | 4.94 | 722,191 |
| Five Biggest Immigrant Groups by Country #3 | 0 | - | 4.70 | 66,403 |
| Boundary Waters | 0 | - | 4.92 | 88,537 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,227 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,218 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,642 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,561 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,526 |
| Most Populous Islands | 0 | - | 4.80 | 123,004 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,319 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,555 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,210 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,120 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,566 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,287 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,862 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,542 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,460 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,283 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,093 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,498 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,454 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,247 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.93 | 50,177 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 346,430 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,623 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,141 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,878 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,920 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,132 |
| The Only Country ... | 0 | - | 4.91 | 81,320 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,234 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,835 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,566 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,866 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,306 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,530 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,453 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,519 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 123,047 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 139,982 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,171 |
| Random Countries by Borders | 0 | - | 4.99 | 82,577 |
| Random Name a Valid Country | 0 | - | 4.99 | 205,321 |
| Name a Valid Island Country | 0 | - | 4.96 | 115,079 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,374 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,550,888 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,720 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,452 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,257 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,515 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,995 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,803 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,546 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,694 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,554 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,028 |
| Biggest City by Region | 0 | - | 4.50 | 36,269 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,180 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,977 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,605 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,672 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,017 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,218 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,371 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,340 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,606 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,447 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,706 |
| Word Scramble - Cities #1 | 0 | - | 4.50 | 99,287 |
| Largest World Cities With Five Letters | 0 | - | 4.53 | 67,091 |
| Cities Chain #2 | 0 | - | 4.42 | 56,418 |
| Cities Chain #1 | 0 | - | 4.61 | 66,668 |
| Name Any Valid U.S. City | 0 | - | 4.49 | 40,656 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,304 |
| Random World Capitals on a Map | 0 | - | 4.93 | 134,801 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,685 |
| Capital Cities in Squares of an Empty World Map | 0 | - | 4.99 | 89,461 |
| Landlocked Countries | 0 | - | 4.99 | 421,558 |
| Countries of the World - One Minute Sprint | 0 | - | 4.36 | 978,098 |
| Random Countries with Letters Missing | 0 | - | 4.51 | 95,858 |
| Empty World Map without 20 Random Countries | 0 | - | 4.94 | 138,457 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,702 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 336,949 |
| Musical Acts by Country #1 | 0 | - | 4.45 | 79,157 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,370 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,202 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,687 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,982 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,565 |
| Population Trivia | 0 | - | 4.32 | 27,508 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,478 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,471 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,644 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 82,733 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,975 |
