| Biggest Cities in the World | 0 | - | 4.91 | 793,610 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,392 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,110 |
| Biggest City in Every Country | 0 | - | 4.98 | 99,320 |
| Five Most Populated Cities by Continent | 0 | - | 4.93 | 223,156 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 109,389 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.96 | 131,571 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 78,968 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 83,904 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,053 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 53,389 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 69,474 |
| Ten Southernmost Megacities | 0 | - | 4.85 | 57,006 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 67,044 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 129,208 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,210 |
| Biggest Cities in the United States | 0 | - | 4.93 | 971,372 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,724 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,236 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,495 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,408 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,233 |
| Largest City by Island | 0 | - | 4.87 | 71,364 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,574 |
| Most Populous World Capitals | 0 | - | 4.94 | 174,916 |
| Biggest European Cities by Century | 0 | - | 4.99 | 144,914 |
| Megacities on a World Map | 0 | - | 4.98 | 252,207 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,007 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,323 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 113,482 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 167,672 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,549 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 575,222 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,173 |
| Countries with Megacities | 0 | - | 4.99 | 248,740 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,037 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,491 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,409 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,440 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,374 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,077 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 49,710 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 343,391 |
| Megacities on an Empty Map | 0 | - | 4.97 | 117,163 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,544 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,394 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,710 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,175 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 101,977 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,828 |
| Biggest City by Region | 0 | - | 4.50 | 36,057 |
| Most Populous 2nd Cities | 0 | - | 4.77 | 56,988 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,677 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,266 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,165 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,075 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,097 |
| Largest World Capitals with Exceptions | 0 | - | 4.63 | 52,275 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,061 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 114,324 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,314 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,250 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,827 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,285 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,056 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,061 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,602 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,726 |
| Demographics Multiple Choice | 0 | - | 4.69 | 42,159 |
| Biggest Cities in Europe | 0 | - | 4.70 | 543,503 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 158,676 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 46,761 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 117,730 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.93 | 78,993 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,209 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,019 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.84 | 61,806 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,750 |
| Fastest Growing U.S. Cities | 0 | - | 4.34 | 72,934 |
| Biggest Cities in History | 0 | - | 4.52 | 89,340 |
| Top 10 World Cities Through History | 0 | - | 4.43 | 72,205 |
| Biggest Coastal City by Country | 0 | - | 4.61 | 28,001 |
| Biggest City by Region #2 | 0 | - | 4.43 | 24,715 |
| Biggest Cities by Latitude Range | 0 | - | 4.78 | 27,506 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,272 |
| Biggest Cities by Trait #2 | 0 | - | 4.46 | 20,387 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,299 |
| Biggest Cities Starting With A | 0 | - | 4.62 | 123,808 |
| Biggest Cities Starting With D | 0 | - | 4.51 | 116,225 |
| Biggest Cities Starting With H | 0 | - | 4.54 | 108,902 |
| Biggest Cities Starting With L | 0 | - | 4.44 | 122,224 |
| Biggest Cities Starting With M | 0 | - | 4.48 | 142,765 |
| Biggest Cities Starting With P | 0 | - | 4.46 | 126,281 |
| Boundary Waters | 0 | - | 4.92 | 88,204 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,944 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,616 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,764 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,087 |
| Countries of Europe by Population | 0 | - | 4.98 | 179,131 |
| Most Populous Countries by Year | 0 | - | 4.83 | 109,734 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,312 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,805 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,310 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,691 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,873 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,588 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 55,777 |
| 15 Largest Cities in South America With a Map | 0 | - | 4.95 | 125,035 |
| Biggest Cities in France - Extreme | 0 | - | 4.87 | 56,155 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,213 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,931 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 134,635 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.87 | 75,508 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 83,868 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.92 | 66,743 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 72,998 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 96,505 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,471 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 169,528 |
| Most Populous Islands | 0 | - | 4.79 | 122,177 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,232 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,446 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,690 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 63,994 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,131 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.73 | 73,237 |
| Biggest Cities Near a Border | 0 | - | 4.22 | 31,814 |
| Biggest Mediterranean Cities | 0 | - | 4.61 | 91,150 |
| European Cities in the Top 200 Worldwide | 0 | - | 4.56 | 49,274 |
| 100 Biggest Cities in Italy on a Map | 0 | - | 4.88 | 95,017 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 45,688 |
| Cities of China (With Some Help) | 0 | - | 4.90 | 31,382 |
| Biggest Cities in Sweden | 0 | - | 4.85 | 41,040 |
| 100 Biggest Cities in Germany on a Map | 0 | - | 4.92 | 97,718 |
| All Cities in India with Population of 1 Million | 0 | - | 4.83 | 47,292 |
| Most Populous Second Cities in the U.S. | 0 | - | 4.30 | 40,875 |
| Biggest Cities Starting With B | 0 | - | 4.34 | 162,164 |
| Biggest Cities Starting With C | 0 | - | 4.11 | 104,963 |
| Biggest Cities Starting With K | 0 | - | 4.31 | 86,808 |
| Biggest Cities Starting With S | 0 | - | 4.40 | 126,069 |
| Biggest Cities Starting With T | 0 | - | 4.29 | 127,748 |
| Biggest Cities in the Sun Belt on a Map | 0 | - | 4.68 | 23,492 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,649 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 182,552 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 192,407 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,311 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 107,997 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,763 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,418 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,877 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,135,166 |
| Landlocked Countries | 0 | - | 4.99 | 416,298 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,482 |
| Biggest Cities in Latin America | 0 | - | 4.47 | 64,569 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,027 |
| Flags to Largest Cities | 0 | - | 4.54 | 51,039 |
| Biggest World Cities A-Z | 0 | - | 4.62 | 222,233 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,346 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,304 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,297 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,192 |
| Population Trivia | 0 | - | 4.32 | 27,450 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,145 |
| Biggest English Cities by Century | 0 | - | 4.90 | 105,758 |
| Largest World Cities With Four Letters | 0 | - | 4.36 | 50,944 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 31,937 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,175 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,768 |
| Himalayan Countries | 0 | - | 4.95 | 136,364 |
| Andean Countries | 0 | - | 4.95 | 83,404 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,667 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,894 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,358 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,965 |
| Danube Countries | 0 | - | 4.97 | 71,362 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,155 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,817 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,084 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,032 |
| European Landlocked Countries | 0 | - | 4.99 | 146,093 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,701 |
| Countries with the Most Species | 0 | - | 4.99 | 100,233 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,848 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,313 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,488 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,130 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,786 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,156 |
| Countries in the Alps | 0 | - | 4.86 | 117,288 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,870 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,809 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,230 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,706 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,767 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,222 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,947 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,970 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,771 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,303 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,339 |
