| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,038 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,029 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,235 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,125 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,397 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,023 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,570 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,294 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,354 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,543 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,781 |
| Countries with Megacities | 0 | - | 4.99 | 249,986 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,634 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,855 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,940 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,834 |
| Independence from Whom | 0 | - | 4.99 | 211,186 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,606 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,332 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,877 |
| Countries by Founding Story | 0 | - | 4.95 | 77,015 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,398 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,493 |
| Biggest Cities in the World | 0 | - | 4.91 | 796,030 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,639 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,474 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,262 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,595 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,222 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,293 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,848 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,387 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,768 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,903 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,781 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,536 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,274 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,120 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,357 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,595 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,707 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,164 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,295 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,714 |
| Cities by Former Name | 0 | - | 4.83 | 91,395 |
| Recently Independent Countries | 0 | - | 4.98 | 158,939 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,473 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,609 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,249 |
| Countries by Former Name | 0 | - | 4.99 | 124,867 |
| Historical City to Country | 0 | - | 4.83 | 78,406 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 416,167 |
| Biggest Cities in the United States | 0 | - | 4.93 | 974,770 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,347 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,780 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,199 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,929 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,463 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,124 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,630 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,911 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,103 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,787 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,951 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,879 |
| Largest City by Island | 0 | - | 4.87 | 71,597 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,727 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,577 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,176 |
| Megacities on a World Map | 0 | - | 4.98 | 252,990 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 576,587 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,161 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,614 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,053 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,998 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,659 |
| Former Capitals | 0 | - | 4.88 | 71,354 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,235 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,432 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,690 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,411 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,061 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,252 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,716 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,821 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,924 |
| Boundary Waters | 0 | - | 4.92 | 88,349 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,054 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,860 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,087 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,297 |
| Most Populous Islands | 0 | - | 4.80 | 122,744 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,267 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,488 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,290 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 183,384 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,922 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,551 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,748 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,133 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,986 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.64 | 64,101 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,618 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,276 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,622 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,521 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,847 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 344,471 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,994 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,739 |
| Ancient City to Country | 0 | - | 4.70 | 107,895 |
| City-States | 0 | - | 4.53 | 37,221 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,612 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,073 |
| Countries by Independence Day | 0 | - | 4.61 | 52,702 |
| Former Countries by Capital | 0 | - | 4.45 | 127,334 |
| Former Countries | 0 | - | 4.75 | 133,109 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,603 |
| Battle to Country | 0 | - | 4.91 | 53,086 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,580 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,817 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,661 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,289,440 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,458 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,289 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,355 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,036 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,903 |
| Biggest City by Region | 0 | - | 4.50 | 36,108 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,041 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,766 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,366 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,726 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,420 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,140 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,314 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,145 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,809 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,348 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,031 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,111 |
| Landlocked Countries | 0 | - | 4.99 | 418,253 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,658 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 566,380 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,056 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,554 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,146 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,475 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,564 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,388 |
| Population Trivia | 0 | - | 4.32 | 27,470 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,946 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,992 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,043 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,177 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,499 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,379 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,996 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,085 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,270 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,067 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,643 |
| Himalayan Countries | 0 | - | 4.94 | 137,123 |
| Andean Countries | 0 | - | 4.95 | 83,778 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,024 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,402 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,700 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,257 |
| Danube Countries | 0 | - | 4.97 | 71,584 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,450 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,986 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,524 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,580 |
| European Landlocked Countries | 0 | - | 4.99 | 146,698 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,024 |
| Countries with the Most Species | 0 | - | 4.99 | 102,818 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,772 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,164 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,401 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,558 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,262 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,932 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,312 |
| Countries in the Alps | 0 | - | 4.87 | 117,587 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,069 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,248 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,370 |
| Guerrillas by Country | 0 | - | 4.40 | 41,061 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,914 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,021 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,398 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,191 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,132 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,929 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,169 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,494 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,443 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,302 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,599 |
