| First Countries to Reach 5 Million People | 0 | - | 4.93 | 135,647 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,369 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 93,038 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,397 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,710 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,547 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,635 |
| Most Populous Countries by Year | 0 | - | 4.83 | 111,072 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,667 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,858 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,027 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,338 |
| Countries with Megacities | 0 | - | 4.99 | 265,591 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,134 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,698 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,395 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,773 |
| Independence from Whom | 0 | - | 4.99 | 212,441 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,986 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,675 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,665 |
| Countries by Founding Story | 0 | - | 4.95 | 77,492 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,530 |
| Biggest Cities in the World | 0 | - | 4.92 | 802,812 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 128,219 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,074 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,518 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,361 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,692 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,911 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,363 |
| Biggest City by Time Zone | 0 | - | 4.88 | 68,558 |
| Biggest City in Every Country | 0 | - | 4.98 | 101,460 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 226,513 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 111,064 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.94 | 148,268 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 80,438 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,982 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 80,617 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 60,382 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,460 |
| Ten Southernmost Megacities | 0 | - | 4.88 | 64,982 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 68,104 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 131,601 |
| Cities by Former Name | 0 | - | 4.83 | 91,852 |
| Recently Independent Countries | 0 | - | 4.98 | 159,659 |
| Countries of the World in 1900 | 0 | - | 4.89 | 85,491 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 196,125 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 151,626 |
| Countries by Former Name | 0 | - | 4.99 | 125,511 |
| Historical City to Country | 0 | - | 4.85 | 78,730 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,503 |
| Biggest Cities in the United States | 0 | - | 4.94 | 983,321 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,251 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,948 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,331 |
| Countries of Europe by Population | 0 | - | 4.98 | 182,099 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,785 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,952 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,352 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,488 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,632 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 93,053 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,288 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,276 |
| Largest City by Island | 0 | - | 4.87 | 72,204 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 71,276 |
| Most Populous World Capitals | 0 | - | 4.94 | 176,399 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,926 |
| Megacities on a World Map | 0 | - | 4.98 | 255,929 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 580,448 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,613 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 75,376 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 115,590 |
| Biggest City in Each U.S. State | 0 | - | 4.87 | 169,006 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,463 |
| Former Capitals | 0 | - | 4.88 | 71,581 |
| Countries Settled by Vikings | 0 | - | 4.93 | 121,874 |
| Warsaw Pact Countries | 0 | - | 4.83 | 84,605 |
| Countries of Europe in 1650 with a Map | 0 | - | 4.95 | 69,942 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 100,221 |
| Countries of the World in 1444 | 0 | - | 4.98 | 60,545 |
| Modern-Day Countries of the Inca Empire on a Map | 0 | - | 4.83 | 57,695 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,373 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,574 |
| Most Populous Countries in 1950 | 0 | - | 4.63 | 86,197 |
| Boundary Waters | 0 | - | 4.92 | 88,650 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,320 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,434 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,986 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,753 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,735 |
| Most Populous Islands | 0 | - | 4.80 | 123,145 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,344 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,597 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,803 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 184,587 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 194,223 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 104,591 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,918 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,701 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,706 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,380 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,283 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,636 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,733 |
| Biggest Cities in Asia | 0 | - | 4.95 | 117,628 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,293 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 347,521 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,911 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 51,321 |
| Ancient City to Country | 0 | - | 4.70 | 108,221 |
| City-States | 0 | - | 4.53 | 37,340 |
| Damaged and Destroyed Cities | 0 | - | 4.44 | 44,751 |
| City Where It Happened #2 | 0 | - | 4.42 | 53,178 |
| Countries by Independence Day | 0 | - | 4.62 | 52,816 |
| Former Countries by Capital | 0 | - | 4.45 | 127,683 |
| Former Countries | 0 | - | 4.77 | 134,036 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,238 |
| Battle to Country | 0 | - | 4.91 | 53,688 |
| Modern-Day Countries of the Umayyad Caliphate on a Map | 0 | - | 4.98 | 69,030 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,972 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,511 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,697,129 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,957 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,679 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,890 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,596 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 56,084 |
| Biggest City by Region | 0 | - | 4.50 | 36,318 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,237 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,194 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,854 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,153 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 137,336 |
| Northernmost Major City by Country | 0 | - | 4.57 | 33,264 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,401 |
| Two Largest Cities by First Two Letters | 0 | - | 4.52 | 83,433 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,997 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,498 |
| Most Populous Countries in 1800 | 0 | - | 4.33 | 42,176 |
| Cities Where Famous People Died | 0 | - | 4.47 | 33,216 |
| Landlocked Countries | 0 | - | 4.99 | 423,384 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,479 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 581,873 |
| Countries of Europe in 1000 with a Map | 0 | - | 4.78 | 43,468 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,250 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,291 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,795 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,172 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,655 |
| Population Trivia | 0 | - | 4.32 | 27,533 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.95 | 159,758 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,725 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,926 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.91 | 83,732 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 42,211 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 117,754 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 62,666 |
| Cities by Founder and Date | 0 | - | 4.56 | 29,141 |
| City Where It Happened #1 | 0 | - | 4.23 | 106,429 |
| World Capitals Quiz | 0 | - | 5.00 | 5,092,134 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,169 |
| Himalayan Countries | 0 | - | 4.94 | 139,364 |
| Andean Countries | 0 | - | 4.94 | 84,951 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,170 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,335 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,737 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,053 |
| Danube Countries | 0 | - | 4.97 | 72,169 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,249 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,571 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,615 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,121 |
| European Landlocked Countries | 0 | - | 4.99 | 147,323 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,900 |
| Countries with the Most Species | 0 | - | 4.99 | 103,382 |
| Countries Unconquered since 1850 | 0 | - | 4.32 | 64,910 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,036 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,661 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,777 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,649 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,404 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,809 |
| Countries in the Alps | 0 | - | 4.87 | 118,429 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,919 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,363 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,784 |
| Guerrillas by Country | 0 | - | 4.40 | 41,185 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,766 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,675 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,069 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,864 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,638 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,271 |
| Longest Uninterrupted Democracies | 0 | - | 4.04 | 33,241 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,991 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,741 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,612 |
