| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,662 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,942 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,964 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 91,126 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,962 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,167 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,702 |
| Countries with Megacities | 0 | - | 4.99 | 268,258 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,335 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,432 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,681 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,556 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,457,046 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 383,267 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 228,262 |
| European Countries with One Border | 0 | - | 4.97 | 184,131 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,843 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,529 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,645 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,907 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 113,282 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,445 |
| Countries with the Most Borders | 0 | - | 4.97 | 391,323 |
| Countries of Europe by Population | 0 | - | 4.98 | 183,878 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,752 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 224,140 |
| First Countries to Reach 5 Million People | 0 | - | 4.93 | 136,081 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,655 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,336 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,598 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,966 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,928 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 165,907 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 171,492 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,664 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,250 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,286 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 356,992 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 418,433 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 235,068 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 185,589 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 195,441 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 105,167 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 109,017 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,202 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,433 |
| Random Countries by Borders | 0 | - | 4.99 | 83,254 |
| Highest Fertility Countries | 0 | - | 4.90 | 27,346 |
| Countries by Population Decrease | 0 | - | 4.46 | 50,045 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,567 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,906 |
| Most Populated Countries Bordering the Indian Ocean | 0 | - | 4.27 | 28,239 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,930 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,571 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 107,468 |
| Countries Bordering the EU | 0 | - | 4.78 | 73,627 |
| Biggest Cities in the World | 0 | - | 4.91 | 807,672 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,856,094 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,631 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,842 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 116,299 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,138 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,095 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,767 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,195 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,927 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,239 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,236 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,302 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,965 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,267 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,946 |
| Countries Bordering Turkey | 0 | - | 4.98 | 118,011 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,641 |
| Biggest City by Time Zone | 0 | - | 4.88 | 69,180 |
| Biggest City in Every Country | 0 | - | 4.98 | 102,330 |
| Biggest Cities by Latitude Range | 0 | - | 4.81 | 33,034 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 228,056 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,788 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 150,868 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 81,030 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 85,456 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 421,459 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 81,169 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,773 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.92 | 70,911 |
| Ten Southernmost Megacities | 0 | - | 4.84 | 65,363 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,622 |
| Biggest Cities in the United States | 0 | - | 4.94 | 990,022 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,705 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,418 |
| Olympic Host Countries | 0 | - | 4.98 | 202,407 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 48,334 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,639 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 315,934 |
| The Only European Country ... | 0 | - | 4.91 | 219,827 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,544 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,955 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 93,014 |
| Countries of Africa | 0 | - | 5.00 | 2,566,972 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 71,080 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,430 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,865 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,952 |
| Largest City by Island | 0 | - | 4.87 | 72,625 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,539 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,947 |
| Biggest European Cities by Century | 0 | - | 4.99 | 146,309 |
| Megacities on a World Map | 0 | - | 4.98 | 257,697 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 583,628 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,893 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,895 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 116,949 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,942 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,874 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,495 |
| Countries of the Middle East | 0 | - | 4.96 | 203,413 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,459 |
| Slavic Countries | 0 | - | 4.96 | 112,581 |
| African Island Countries | 0 | - | 4.96 | 102,817 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,274 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 70,870 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.84 | 53,949 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,034,191 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 128,117 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,576 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 155,074 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,444 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,471 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 219,285 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,866 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,808 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 113,111 |
| Top 10 Most Populous American Countries | 0 | - | 4.96 | 145,039 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,605 |
| 10 Southernmost Countries in Africa | 0 | - | 4.99 | 118,135 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 162,786 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 100,125 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 109,385 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.95 | 47,939 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,214 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 83,004 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,940 |
| Countries A-Z by Neighbor | 0 | - | 5.00 | 181,537 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,662 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,618 |
| Most Populous Islands | 0 | - | 4.80 | 123,492 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,414 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,692 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,777 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,423 |
| Biggest Cities in Asia | 0 | - | 4.95 | 118,464 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,512 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 32,134 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 349,681 |
| Megacities on an Empty Map | 0 | - | 4.97 | 119,430 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,666 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,851 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,637 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,375 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,832 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 105,662 |
| 10 Easternmost Countries in Africa | 0 | - | 4.98 | 25,307 |
| Monarchies of Europe | 0 | - | 4.90 | 99,108 |
| Monarchies of Asia | 0 | - | 4.97 | 71,654 |
| Countries with the Most Downhill Skiing | 0 | - | 4.89 | 57,804 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,397 |
| Lowest Fertility Countries | 0 | - | 4.40 | 98,054 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 137,983 |
| Countries that Start with A | 0 | - | 4.98 | 2,179,759 |
| Countries that Start with B | 0 | - | 4.95 | 2,310,367 |
| Countries that Start with C | 0 | - | 4.96 | 1,834,484 |
| Countries that Start with D | 0 | - | 4.96 | 718,539 |
| Countries that Start with E | 0 | - | 4.95 | 1,387,593 |
| Countries that Start with G | 0 | - | 4.97 | 1,514,206 |
| Countries that Start with H | 0 | - | 4.96 | 611,107 |
| Countries that Start with I | 0 | - | 4.92 | 1,296,676 |
| Countries that Start with J | 0 | - | 4.98 | 608,417 |
| Countries that Start with K | 0 | - | 4.97 | 822,306 |
| Countries that Start with L | 0 | - | 4.98 | 1,098,755 |
| Countries that Start with N | 0 | - | 4.93 | 1,125,882 |
| Countries that Start with P | 0 | - | 4.94 | 1,223,998 |
| Countries that Start with S | 0 | - | 4.98 | 1,765,793 |
| Countries that Start with T | 0 | - | 4.90 | 1,016,424 |
| Countries that Start with U | 0 | - | 4.97 | 909,679 |
| Countries that Start with V | 0 | - | 4.98 | 612,868 |
| Countries that Start with F | 0 | - | 4.83 | 622,455 |
| Countries that Start with M | 0 | - | 4.97 | 1,390,340 |
| The Only African Country ... | 0 | - | 4.99 | 129,868 |
| The Only American Country ... | 0 | - | 4.92 | 122,418 |
| African Countries by a Single Clue | 0 | - | 4.92 | 68,489 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,460 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,772 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,435 |
| African Diaspora - Top 10 Countries | 0 | - | 4.93 | 73,594 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,044 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,819 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.90 | 107,157 |
| Countries Closest to Africa | 0 | - | 4.96 | 158,071 |
| U.S. State Border Crossings | 0 | - | 4.97 | 97,003 |
