| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,040 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,623 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,062,166 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,583 |
| Countries with Megacities | 0 | - | 4.99 | 196,774 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,165 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,728 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,060 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,689 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,428 |
| Global Cities on a World Map | 0 | - | 4.92 | 91,324 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,858 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 112,960 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 51,614 |
| All First-Level Subdivisions of Europe by Proximity | 0 | - | 4.82 | 65,918 |
| Top World Languages on a Map | 0 | - | 4.91 | 92,941 |
| Official Languages of the World on the Disappearing World Map | 0 | - | 4.99 | 98,169 |
| Historic Journeys on a World Map | 0 | - | 4.99 | 39,707 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,848 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,020 |
| Biggest Cities in the World | 0 | - | 4.89 | 685,944 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,059,107 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,388,226 |
| 407 Islands on the World Map | 0 | - | 4.98 | 27,876 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 116,895 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,002 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,804 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,891 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,880 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,063 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,433 |
| Biggest City by Time Zone | 0 | - | 4.84 | 54,280 |
| Biggest City in Every Country | 0 | - | 4.97 | 78,668 |
| Five Most Populated Cities by Continent | 0 | - | 4.94 | 169,476 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 91,939 |
| 10 Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 96,025 |
| Biggest Cities with Exceptions | 0 | - | 4.91 | 64,805 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.86 | 71,321 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.94 | 65,111 |
| Biggest Cities in Deserts | 0 | - | 4.94 | 42,314 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 59,630 |
| Ten Southernmost Megacities | 0 | - | 4.81 | 46,333 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.97 | 55,118 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 106,232 |
| World Capitals by Map | 0 | - | 5.00 | 241,123 |
| Capital Cities in a Ring of the World Map | 0 | - | 4.95 | 50,209 |
| Countries of the World in 1900 | 0 | - | 4.89 | 66,121 |
| Countries of the World in 1914 with a Map | 0 | - | 4.99 | 170,286 |
| All Countries by Northernmost Point on Land | 0 | - | 4.91 | 106,231 |
| 20 Countries on an Empty Map #1 | 0 | - | 4.94 | 54,071 |
| Countries of the World in 1945 with a Map | 0 | - | 5.00 | 127,758 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 46,672 |
| African East Coast | 0 | - | 4.97 | 84,074 |
| Most Populous Country by First Two Letters | 0 | - | 4.75 | 66,865 |
| Demographics Multiple Choice | 0 | - | 4.66 | 39,739 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 370,825 |
| Biggest Cities in the United States | 0 | - | 4.92 | 814,999 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 333,522 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 30,814 |
| Boundary Waters | 0 | - | 4.93 | 81,036 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 74,609 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 44,527 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 51,092 |
| Countries of Europe by Population | 0 | - | 4.98 | 126,180 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 78,573 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 96,404 |
| Countries with the Most People Bordering Them | 0 | - | 4.95 | 75,133 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 93,312 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 69,361 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 85,853 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.87 | 108,936 |
| Biggest Cities by Language | 0 | - | 4.95 | 213,775 |
| Biggest Cities in Europe, 1700 A.D. | 0 | - | 4.95 | 64,782 |
| Most Populous World Capitals | 0 | - | 4.92 | 148,346 |
| Biggest European Cities by Century | 0 | - | 4.98 | 118,693 |
| Megacities on a World Map | 0 | - | 4.98 | 220,552 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 59,809 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 63,336 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 84,190 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 151,076 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 205,040 |
| First Countries to Reach 5 Million People | 0 | - | 4.90 | 109,479 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.86 | 68,544 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.97 | 76,065 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.91 | 53,616 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.92 | 66,878 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 86,851 |
| Pixelated World Map | 0 | - | 5.00 | 128,016 |
| Countries of Europe in 1444 | 0 | - | 4.92 | 86,838 |
| Countries of the World in 1444 | 0 | - | 4.98 | 49,824 |
| Countries with the Highest Population Density | 0 | - | 4.93 | 143,643 |
| Countries with the Lowest Population Density | 0 | - | 4.97 | 144,228 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 69,424 |
| Name a Valid First-Level Subdivision for Every Country | 0 | - | 4.97 | 43,626 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 284,849 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 222,683 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 210,035 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 274,792 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 512,886 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,045 |
| Most Populous Islands | 0 | - | 4.71 | 112,636 |
| Islands by Largest City #1 | 0 | - | 4.48 | 82,034 |
| Countries by Population Decrease | 0 | - | 4.43 | 46,501 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.55 | 49,408 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.97 | 5,478 |
| Largest World's Islands on the World Map | 0 | - | 4.66 | 155,148 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 204,883 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 160,672 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 157,133 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.91 | 80,733 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,647 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,729 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 64,307 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 154,742 |
| Biggest Cities in Asia | 0 | - | 4.94 | 95,754 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.91 | 43,375 |
| Megacities on an Empty Map | 0 | - | 4.95 | 87,463 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.93 | 41,636 |
| Most Populous Countries in 1900 | 0 | - | 4.92 | 161,779 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,845,858 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 322,778 |
| Mediterranean Countries with an Empty Map | 0 | - | 4.99 | 85,003 |
| All First-Level Subdivisions of North America on a Map | 0 | - | 4.98 | 47,254 |
| Seas on the World Map | 0 | - | 4.97 | 121,599 |
| Seas of the World | 0 | - | 5.00 | 127,383 |
| Countries of North America with an Empty Map | 0 | - | 4.99 | 85,225 |
| 20 Random Countries on an Empty World Map | 0 | - | 4.98 | 99,588 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,247 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 83,631 |
| Islands by Largest City #2 | 0 | - | 4.72 | 26,712 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.38 | 66,836 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,003 |
| Population Trivia | 0 | - | 4.35 | 26,306 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.89 | 50,691 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.48 | 97,518 |
| Biggest Cities by Trait #1 | 0 | - | 4.45 | 43,049 |
| Biggest City by Region | 0 | - | 4.49 | 33,619 |
| Most Populous 2nd Cities | 0 | - | 4.75 | 53,344 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.82 | 63,702 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 67,816 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 199,017 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 109,158 |
| Largest World Capitals with Exceptions | 0 | - | 4.72 | 50,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.58 | 76,516 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 303,711 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 97,335 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 47,001 |
| World Capitals Quiz | 0 | - | 5.00 | 4,491,148 |
| Members of the Arab League | 0 | - | 4.85 | 61,519 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,604 |
| Himalayan Countries | 0 | - | 4.94 | 104,485 |
| Andean Countries | 0 | - | 4.91 | 57,904 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,842 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,202 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,533 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,972 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,216 |
| Danube Countries | 0 | - | 4.97 | 56,588 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,615 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,791 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,028 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,240 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,011 |
| European Landlocked Countries | 0 | - | 4.99 | 115,061 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,227 |
| Countries with the Most Species | 0 | - | 4.99 | 89,463 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,259 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,634 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,971 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,176 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,364 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,644 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,062 |
| Countries in the Alps | 0 | - | 4.83 | 102,492 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,183 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,848 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,496 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,142 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,846 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,449 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,518 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,075 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,267 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,561 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,330 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,614 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,375 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,864 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,362 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,741 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,270 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,310 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,584 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,596 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,220 |
| Largest Countries By Category | 0 | - | 4.96 | 144,714 |
| Countries by Countries | 0 | - | 4.96 | 54,543 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,176 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,636 |
