| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,639 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,015 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,059 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,267 |
| Countries with Megacities | 0 | - | 4.99 | 246,982 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,154 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,996 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,571 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,892 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,193 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,671 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,506 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,124 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,849 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,945 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,896 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,500 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,616 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,282 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,663 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,701 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,965 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,878 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 130,072 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,501 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,536 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,593 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,062 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,176 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,759 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 66,695 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,541 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,656 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,091 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,668 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,779 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,812 |
| Boundary Waters | 0 | - | 4.92 | 88,047 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,294 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,312 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,850 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,742 |
| Countries of Europe by Population | 0 | - | 4.98 | 178,118 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,253 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,156 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,352 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,951 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,415 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,606 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,307 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,497 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,863 |
| Largest City by Island | 0 | - | 4.87 | 71,054 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,396 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,558 |
| Biggest European Cities by Century | 0 | - | 4.98 | 143,683 |
| Megacities on a World Map | 0 | - | 4.98 | 250,999 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,804 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,876 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,784 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,150 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,163 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,489 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,308 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,287 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,618 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,580 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,819 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,228 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,133 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,120 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,322 |
| Most Populous Islands | 0 | - | 4.79 | 121,999 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,203 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,408 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,618 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,851 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,940 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,990 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,017 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,872 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,002 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,831 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,412 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,152 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,052 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,360 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,572 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 342,086 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,519 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,301 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,604 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,925,039 |
| Landlocked Countries | 0 | - | 4.99 | 413,679 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 553,134 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,163 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,008 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,138 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 102,923 |
| Population Trivia | 0 | - | 4.32 | 27,425 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,959 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,921 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,906 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,708 |
| Biggest City by Region | 0 | - | 4.50 | 35,997 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,904 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,540 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,123 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,497 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,606 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,021 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,222 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,923 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,808 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,260 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,038 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,616 |
| Himalayan Countries | 0 | - | 4.95 | 135,381 |
| Andean Countries | 0 | - | 4.94 | 82,833 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,223 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,224 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,913 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,617 |
| Danube Countries | 0 | - | 4.97 | 71,088 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,541 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,496 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,410 |
| European Landlocked Countries | 0 | - | 4.99 | 145,760 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,220 |
| Countries with the Most Species | 0 | - | 4.99 | 95,243 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,356 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,830 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,574 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,267 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,174 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,584 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,760 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,313 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,065 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,454 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,077 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,652 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,329 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,688 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,606 |
| Largest Countries By Category | 0 | - | 4.97 | 156,767 |
| Countries by Countries | 0 | - | 4.96 | 62,261 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,396 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,332 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,693 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,108 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,774 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,392 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,719 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,488 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,563 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,430 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,622 |
| Longest International Borders | 0 | - | 4.99 | 263,547 |
| Countries with Three Borders | 0 | - | 4.96 | 36,180 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,601 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,676 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,863 |
| Demonym of Every Country | 0 | - | 4.91 | 58,646 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,398 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,034 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,404 |
| Biggest Cities in Europe | 0 | - | 4.70 | 542,206 |
| Biggest Cities in History | 0 | - | 4.52 | 89,135 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,122 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,295 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,459 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,307 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,188 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,743 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,799 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,513 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,542 |
| Biggest World Cities in 1850 | 0 | - | 4.62 | 68,199 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,004 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,519 |
