| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,599 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,950 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,736 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,116 |
| Countries with Megacities | 0 | - | 4.99 | 246,770 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,043 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,922 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,468 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,811 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,858 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,572 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,223 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,105 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,816 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,886 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,869 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,465 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,582 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,248 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,631 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,646 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,875 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,835 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,997 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,474 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,504 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,567 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,045 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,153 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,734 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,666 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,506 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,652 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,085 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,560 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,477 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,748 |
| Boundary Waters | 0 | - | 4.92 | 88,034 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,807 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,267 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,269 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,828 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,725 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,023 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,203 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,132 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,314 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,904 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,387 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,576 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,289 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,424 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,839 |
| Largest City by Island | 0 | - | 4.87 | 71,028 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,385 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,529 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,175 |
| Megacities on a World Map | 0 | - | 4.98 | 250,914 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,789 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,858 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,707 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,140 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,451 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,279 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,256 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,599 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,555 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,798 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,205 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,101 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,080 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,173 |
| Most Populous Islands | 0 | - | 4.79 | 121,976 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,200 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,401 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,606 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,844 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,927 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,912 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,976 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,836 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,975 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,822 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,380 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,136 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,015 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,298 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,561 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,000 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,492 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,286 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,584 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,909,445 |
| Landlocked Countries | 0 | - | 4.99 | 413,486 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,659 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,154 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,990 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,123 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,447 |
| Population Trivia | 0 | - | 4.32 | 27,422 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,946 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,905 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,903 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,694 |
| Biggest City by Region | 0 | - | 4.50 | 35,994 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,895 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,531 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,113 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,445 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,565 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,014 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,219 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,917 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,781 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,251 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,653 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,533 |
| Himalayan Countries | 0 | - | 4.95 | 135,313 |
| Andean Countries | 0 | - | 4.94 | 82,804 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,201 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,166 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,876 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,583 |
| Danube Countries | 0 | - | 4.97 | 71,067 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,744 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,525 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,447 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,370 |
| European Landlocked Countries | 0 | - | 4.99 | 145,738 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,183 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,319 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,950 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,568 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,799 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,548 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,238 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,408 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,142 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,986 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,557 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,741 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,218 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,728 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,035 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,627 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,250 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,756 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,218 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,736 |
| Countries by Countries | 0 | - | 4.96 | 62,247 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,360 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,959 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,329 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,638 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,091 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,753 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,602 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,701 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,481 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,541 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,227 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,383 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,613 |
| Longest International Borders | 0 | - | 4.99 | 263,528 |
| Countries with Three Borders | 0 | - | 4.96 | 36,173 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,595 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,661 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,855 |
| Demonym of Every Country | 0 | - | 4.91 | 58,633 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,210 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,391 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,024 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,379 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,109 |
| Biggest Cities in History | 0 | - | 4.52 | 89,121 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,117 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,254 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,437 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,272 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,181 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,713 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,766 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,477 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,524 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,192 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 35,998 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,494 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 115,954 |
