| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,949 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,263 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,455 |
| Countries with Megacities | 0 | - | 4.99 | 263,386 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,296 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,591 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,281 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,671 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,333 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,815 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,722 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,802 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,907 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,392 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,535 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,084 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,947 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,551 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,055 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,346 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,853 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,815 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,520 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,899 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,647 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,049 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,492 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,630 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,337 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,859 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,252 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,636 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,384 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,166 |
| Boundary Waters | 0 | - | 4.92 | 88,466 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,164 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,090 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,443 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,460 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,412 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,789 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,623 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,604 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,444 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,891 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,155 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,887 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,541 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,400 |
| Largest City by Island | 0 | - | 4.87 | 71,868 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,987 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,952 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,510 |
| Megacities on a World Map | 0 | - | 4.98 | 254,530 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,344 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,927 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,660 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,811 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,364 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,992 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,278 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,197 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,747 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,251 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,541 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,248 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,963 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,124 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,175 |
| Most Populous Islands | 0 | - | 4.80 | 122,928 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,533 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,817 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,220 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,413 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,892 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,851 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,327 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,830 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,432 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,272 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,944 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,236 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,996 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,081 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,673 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,411 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,981 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,743 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,457,097 |
| Landlocked Countries | 0 | - | 4.99 | 420,498 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,187 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,602 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,834 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,509 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,683 |
| Population Trivia | 0 | - | 4.32 | 27,495 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,434 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,570 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,984 |
| Biggest City by Region | 0 | - | 4.50 | 36,224 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 57,138 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,906 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,529 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,357 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,799 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,187 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,258 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,342 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,415 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,407 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,660 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,697 |
| Himalayan Countries | 0 | - | 4.95 | 138,078 |
| Andean Countries | 0 | - | 4.95 | 84,261 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,483 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,317 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,114 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,557 |
| Danube Countries | 0 | - | 4.97 | 71,829 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,787 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,230 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,963 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,414 |
| European Landlocked Countries | 0 | - | 4.99 | 146,962 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,372 |
| Countries with the Most Species | 0 | - | 4.99 | 103,088 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,529 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,503 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,443 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,114 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,503 |
| Countries in the Alps | 0 | - | 4.87 | 117,955 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,382 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,698 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,547 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,449 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,305 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,337 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,074 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,701 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,564 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,418 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,068 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,363 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,530 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,177 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,687 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,153 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,658 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,104 |
| Largest Countries By Category | 0 | - | 4.97 | 157,925 |
| Countries by Countries | 0 | - | 4.97 | 63,008 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,460 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,215 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,508 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,078 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,802 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,504 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,408 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,557 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,795 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,354 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,441 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,581 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,184 |
| Longest International Borders | 0 | - | 4.99 | 264,935 |
| Countries with Three Borders | 0 | - | 4.96 | 36,533 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,011 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,131 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 37,040 |
| Demonym of Every Country | 0 | - | 4.91 | 60,126 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,314 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,761 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,419 |
| Biggest English-Speaking Cities | 0 | - | 4.44 | 152,587 |
| Biggest Cities in Europe | 0 | - | 4.73 | 546,358 |
| Biggest Cities in History | 0 | - | 4.52 | 90,155 |
| Top 10 World Cities Through History | 0 | - | 4.42 | 77,445 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,305 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,291 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,414 |
| Biggest World Cities within 1,000 Km | 0 | - | 4.53 | 43,406 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,198 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,797 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,845 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,241 |
| Biggest World Cities in 1850 | 0 | - | 4.61 | 68,464 |
| Biggest Cities in the Blue Banana | 0 | - | 4.56 | 36,388 |
