| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,925 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 75,932 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 91,239 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,035 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,303 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,904 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,409 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,072 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,663 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,642 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,425 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,517 |
| Countries with Megacities | 0 | - | 4.99 | 249,474 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,367 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,687 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,696 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,651 |
| Independence from Whom | 0 | - | 4.99 | 210,993 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,462 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,279 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,720 |
| Countries by Founding Story | 0 | - | 4.95 | 76,939 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,047 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,142 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,913 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,496 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,368 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,062 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,445 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,142 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,187 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,733 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,276 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,572 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 223,574 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,611 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 132,119 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,142 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,030 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,222 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,513 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,586 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,102 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,181 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,456 |
| Cities by Former Name | 0 | - | 4.84 | 91,318 |
| Recently Independent Countries | 0 | - | 4.98 | 158,478 |
| Countries of the World in 1900 | 0 | - | 4.89 | 84,281 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 194,337 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 150,016 |
| Countries by Former Name | 0 | - | 4.99 | 124,754 |
| Historical City to Country | 0 | - | 4.84 | 78,365 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,730 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,202 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,055 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,750 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,182 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,580 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,385 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,978 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,500 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,819 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,983 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,679 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,726 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,666 |
| Largest City by Island | 0 | - | 4.87 | 71,503 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,654 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,444 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,067 |
| Megacities on a World Map | 0 | - | 4.98 | 252,599 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,956 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,081 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,488 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,814 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,863 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,152 |
| Former Capitals | 0 | - | 4.88 | 71,315 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,160 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,412 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 68,501 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 99,286 |
| Countries of the World in 1444 | 0 | - | 4.98 | 59,964 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,185 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,600 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,699 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 85,877 |
| Boundary Waters | 0 | - | 4.92 | 88,296 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,014 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,725 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,941 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,200 |
| Most Populous Islands | 0 | - | 4.80 | 122,669 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,257 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,475 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,984 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,854 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,627 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,445 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,721 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,073 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,880 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,056 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,519 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,220 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,522 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,303 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,786 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,956 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,735 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,640 |
| Ancient City to Country | 0 | - | 4.70 | 107,839 |
| City-States | 0 | - | 4.53 | 37,201 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,597 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,054 |
| Countries by Independence Day | 0 | - | 4.61 | 52,693 |
| Former Countries by Capital | 0 | - | 4.45 | 127,285 |
| Former Countries | 0 | - | 4.75 | 133,030 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,492 |
| Battle to Country | 0 | - | 4.91 | 53,005 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 68,518 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,654 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,569 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,218,986 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,360 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,230 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,286 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,012 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,870 |
| Biggest City by Region | 0 | - | 4.50 | 36,085 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 57,018 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,729 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,328 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,399 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,254 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,123 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,300 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,112 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,543 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,330 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 41,970 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,088 |
| Landlocked Countries | 0 | - | 4.99 | 417,341 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,539 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 563,814 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 42,986 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,428 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 116,990 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,430 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,447 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,352 |
| Population Trivia | 0 | - | 4.32 | 27,460 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,831 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,894 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,888 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 79,094 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,387 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,229 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,916 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,072 |
| City Where It Happened #1 | 0 | - | 4.24 | 106,247 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,797 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,248 |
| Himalayan Countries | 0 | - | 4.95 | 136,789 |
| Andean Countries | 0 | - | 4.95 | 83,619 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,876 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,176 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,547 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,139 |
| Danube Countries | 0 | - | 4.97 | 71,492 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,320 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,911 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,320 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,322 |
| European Landlocked Countries | 0 | - | 4.99 | 146,205 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,894 |
| Countries with the Most Species | 0 | - | 4.99 | 102,437 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,746 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,019 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,358 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,539 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,205 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,860 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,241 |
| Countries in the Alps | 0 | - | 4.86 | 117,447 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,971 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,056 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,312 |
| Guerrillas by Country | 0 | - | 4.40 | 41,049 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,815 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,911 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,327 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,084 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,052 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,868 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,149 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,403 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,403 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,245 |
| Most Recent Country To ... | 0 | - | 4.33 | 55,564 |
