| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,253 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,230 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,573 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 66,538 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,773 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,176 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,563 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,166 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,914 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,535 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,564 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,027 |
| Countries with Megacities | 0 | - | 4.99 | 246,589 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,953 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,823 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,391 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,767 |
| Independence from Whom | 0 | - | 4.99 | 209,618 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,696 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,982 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,874 |
| Countries by Founding Story | 0 | - | 4.95 | 76,501 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,575 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,499 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,049 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,088 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 85,787 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,842 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 120,831 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,449 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,554 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,215 |
| Biggest City by Time Zone | 0 | - | 4.87 | 66,609 |
| Biggest City in Every Country | 0 | - | 4.98 | 98,602 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 221,802 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 108,810 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 129,930 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,454 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,490 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 78,539 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,027 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,134 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 56,720 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 66,643 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 128,489 |
| Cities by Former Name | 0 | - | 4.84 | 90,940 |
| Recently Independent Countries | 0 | - | 4.98 | 157,953 |
| Countries of the World in 1900 | 0 | - | 4.89 | 83,446 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 193,081 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 148,788 |
| Countries by Former Name | 0 | - | 4.99 | 124,252 |
| Historical City to Country | 0 | - | 4.84 | 78,115 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,494 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,220 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,705 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,650 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,083 |
| Countries of Europe by Population | 0 | - | 4.98 | 177,951 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,118 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,274 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 106,873 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,364 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,545 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,262 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 126,381 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,808 |
| Largest City by Island | 0 | - | 4.87 | 71,010 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.92 | 70,359 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,508 |
| Biggest European Cities by Century | 0 | - | 4.98 | 142,564 |
| Megacities on a World Map | 0 | - | 4.98 | 250,840 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,056 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 66,775 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 73,836 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 112,655 |
| Biggest City in Each U.S. State | 0 | - | 4.84 | 167,115 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,412 |
| Former Capitals | 0 | - | 4.88 | 71,129 |
| Countries Settled by Vikings | 0 | - | 4.93 | 120,821 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,264 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 67,302 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 98,685 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,488 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 56,847 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,079 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,052 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,711 |
| Boundary Waters | 0 | - | 4.92 | 88,026 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,245 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,241 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,816 |
| Most Populous Islands | 0 | - | 4.79 | 121,957 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,197 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,400 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,861 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 181,934 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 191,800 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 102,961 |
| Countries by Population Decrease | 0 | - | 4.45 | 49,602 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,811 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,350 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,837 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,117 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 22,914 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,973 |
| Biggest Cities in Asia | 0 | - | 4.95 | 115,259 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,553 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 341,905 |
| Megacities on an Empty Map | 0 | - | 4.96 | 102,473 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,277 |
| Ancient City to Country | 0 | - | 4.70 | 107,594 |
| City-States | 0 | - | 4.53 | 37,090 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,476 |
| City Where It Happened #2 | 0 | - | 4.42 | 52,957 |
| Countries by Independence Day | 0 | - | 4.56 | 52,597 |
| Former Countries by Capital | 0 | - | 4.45 | 127,029 |
| Former Countries | 0 | - | 4.75 | 132,670 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,000 |
| Battle to Country | 0 | - | 4.91 | 52,497 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.99 | 68,174 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 148,893 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,897,987 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 99,429 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 56,933 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 58,888 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,892 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,681 |
| Biggest City by Region | 0 | - | 4.50 | 35,990 |
| Most Populous 2nd Cities | 0 | - | 4.78 | 56,892 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,522 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,104 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,406 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 135,539 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,008 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,215 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 82,906 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 113,751 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,248 |
| Most Populous Countries in 1800 | 0 | - | 4.32 | 41,810 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,010 |
| Landlocked Countries | 0 | - | 4.99 | 413,350 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 114,741 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,303 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,677 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 105,835 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,211 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,145 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,969 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,113 |
| Population Trivia | 0 | - | 4.32 | 27,419 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,231 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,426 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,246 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,697 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 40,741 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 115,441 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,508 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,007 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,121 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,741 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,468 |
| Himalayan Countries | 0 | - | 4.95 | 135,253 |
| Andean Countries | 0 | - | 4.94 | 82,774 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,184 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,125 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,559 |
| Danube Countries | 0 | - | 4.97 | 71,057 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,719 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,512 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,411 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,336 |
| European Landlocked Countries | 0 | - | 4.99 | 145,722 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,158 |
| Countries with the Most Species | 0 | - | 4.99 | 95,229 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,639 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,298 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,946 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,554 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,924 |
| Countries in the Alps | 0 | - | 4.86 | 116,777 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,529 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,200 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,989 |
| Guerrillas by Country | 0 | - | 4.40 | 40,944 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,397 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,121 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,539 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,730 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,148 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,093 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,029 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,185 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,026 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,392 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,423 |
