| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,946 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,174 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,885 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,227 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,447 |
| Countries with Megacities | 0 | - | 4.99 | 263,343 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,285 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,236 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,580 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,276 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,602 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,316 |
| Biggest Cities in the World | 0 | - | 4.91 | 798,758 |
| Capitals of the Most Populated Countries | 0 | - | 4.96 | 127,893 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,716 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,789 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,900 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,390 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,535 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,079 |
| Biggest City by Time Zone | 0 | - | 4.88 | 67,939 |
| Biggest City in Every Country | 0 | - | 4.98 | 100,540 |
| Five Most Populated Cities by Continent | 0 | - | 4.92 | 225,043 |
| Biggest Cities in the World - Extreme | 0 | - | 4.98 | 110,333 |
| Biggest Cities That Aren't World Capitals | 0 | - | 4.95 | 133,831 |
| Biggest Cities with Exceptions | 0 | - | 4.90 | 79,807 |
| Biggest Cities in the Southern Hemisphere | 0 | - | 4.87 | 84,510 |
| Ten Biggest Cities by Hemisphere | 0 | - | 4.96 | 79,890 |
| Biggest Cities in Deserts | 0 | - | 4.97 | 59,592 |
| Most Populous Cities as a Percent of Their Continent | 0 | - | 4.91 | 70,038 |
| Ten Southernmost Megacities | 0 | - | 4.87 | 64,477 |
| 100 Biggest Cities in the World with Exceptions | 0 | - | 4.98 | 67,625 |
| Biggest Cities in 4 Random Countries on a Map | 0 | - | 4.99 | 130,323 |
| Countries by Three Words #2 | 0 | - | 4.97 | 202,447 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,433 |
| European Countries by Clue | 0 | - | 4.92 | 183,637 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,031 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,607 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,330 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,145 |
| Most Populous Country by First Two Letters | 0 | - | 4.70 | 70,857 |
| Demographics Multiple Choice | 0 | - | 4.70 | 42,252 |
| Countries of Europe by Population | 0 | - | 4.98 | 180,770 |
| Most Populous Countries by Year | 0 | - | 4.83 | 110,615 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,604 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,441 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,884 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,150 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,313 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 128,529 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,393 |
| Largest City by Island | 0 | - | 4.87 | 71,865 |
| Biggest Cities in Europe in 1700 | 0 | - | 4.93 | 70,981 |
| Most Populous World Capitals | 0 | - | 4.94 | 175,945 |
| Biggest European Cities by Century | 0 | - | 4.99 | 145,501 |
| Megacities on a World Map | 0 | - | 4.98 | 254,507 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 578,144 |
| 2,000 Biggest World Cities Furthest from a Larger City | 0 | - | 4.98 | 67,342 |
| All 3M Cities on the World Map | 0 | - | 4.95 | 74,921 |
| Every 1,000,000+ City on a Map | 0 | - | 4.99 | 114,642 |
| Three Biggest Cities by Time Zone With Map | 0 | - | 4.98 | 34,804 |
| Biggest City in Each U.S. State | 0 | - | 4.85 | 168,360 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,984 |
| First Countries to Reach 5 Million People | 0 | - | 4.92 | 135,271 |
| Most Populous Modern-Day Countries in 1000 AD | 0 | - | 4.88 | 76,195 |
| Most Populous Modern-Day Countries in 1 AD | 0 | - | 4.98 | 92,743 |
| Most Populous Modern-Day Countries in 1800 AD | 0 | - | 4.93 | 67,249 |
| Most Populous Modern-Day Countries in 1500 AD | 0 | - | 4.93 | 73,539 |
| Most Populous Modern-Day Countries by Century | 0 | - | 4.98 | 97,241 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,958 |
| Countries with the Lowest Population Density | 0 | - | 4.98 | 170,120 |
| Boundary Waters | 0 | - | 4.92 | 88,463 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,161 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,084 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,439 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,459 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,405 |
| Most Populous Islands | 0 | - | 4.80 | 122,924 |
| Islands by Largest City #1 | 0 | - | 4.47 | 94,302 |
| Islands by Largest City #2 | 0 | - | 4.74 | 35,532 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,876 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.97 | 183,843 |
| Top 10 Most Populous African Countries | 0 | - | 4.99 | 193,319 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.92 | 103,824 |
| Countries by Population Decrease | 0 | - | 4.46 | 49,815 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.93 | 108,427 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,266 |
| Countries Gaining the Most Population by 2070 | 0 | - | 4.63 | 64,218 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,936 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,412 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,226 |
| Biggest Cities in Asia | 0 | - | 4.95 | 116,975 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 50,070 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 345,622 |
| Megacities on an Empty Map | 0 | - | 4.97 | 118,406 |
| African Cities in the Top 200 Worldwide | 0 | - | 4.95 | 50,968 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,737 |
| The Only American Country ... | 0 | - | 4.92 | 121,603 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,121 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,068 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,359 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,953 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,575 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,453,283 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,679 |
| Biggest Countries by Population - Shape Quiz | 0 | - | 4.91 | 57,429 |
| Second Biggest Cities by Country | 0 | - | 4.43 | 59,567 |
| Biggest Two-Word U.S. Cities | 0 | - | 4.50 | 102,086 |
| Biggest Cities by Trait #1 | 0 | - | 4.50 | 55,980 |
| Biggest City by Region | 0 | - | 4.50 | 36,221 |
| 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 | 73,526 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,342 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.98 | 136,789 |
| Northernmost Major City by Country | 0 | - | 4.56 | 33,184 |
| Largest World Capitals with Exceptions | 0 | - | 4.64 | 52,350 |
| Two Largest Cities by First Two Letters | 0 | - | 4.53 | 83,254 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.91 | 115,331 |
| Ten Northernmost Megacities | 0 | - | 4.50 | 49,414 |
| All 100k+ Cities in Europe on a Map | 0 | - | 4.99 | 101,384 |
| Landlocked Countries | 0 | - | 4.99 | 420,444 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,060 |
| Countries by Three Words #3 | 0 | - | 4.80 | 128,651 |
| Countries by Three Words #4 | 0 | - | 4.45 | 100,750 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,706 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,029 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,800 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,956 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,966 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,946 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,838 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,517 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,976 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,346 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,957 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,600 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,823 |
| Countries Losing the Most Population by 2070 | 0 | - | 4.40 | 84,506 |
| Population Trivia | 0 | - | 4.32 | 27,495 |
| Biggest Cities in the U.S. - Extreme | 0 | - | 4.96 | 159,291 |
| 15 Largest Cities in North America With a Map | 0 | - | 4.98 | 47,285 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 118,407 |
| Biggest Cities in Each U.S. State - Extreme | 0 | - | 4.88 | 81,043 |
| 10 Biggest Cities by U.S. State | 0 | - | 4.95 | 41,791 |
| 500 Biggest U.S. Urban Areas | 0 | - | 4.90 | 116,834 |
| 100 Biggest Cities in North America on a Map | 0 | - | 4.85 | 62,230 |
| World Capitals Quiz | 0 | - | 5.00 | 5,073,324 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,676 |
| Himalayan Countries | 0 | - | 4.95 | 138,065 |
| Andean Countries | 0 | - | 4.95 | 84,253 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,476 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,304 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,110 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,552 |
| Danube Countries | 0 | - | 4.97 | 71,826 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,777 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,225 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,956 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,401 |
| European Landlocked Countries | 0 | - | 4.99 | 146,958 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,368 |
| Countries with the Most Species | 0 | - | 4.99 | 103,085 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,526 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,497 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,657 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,439 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,112 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,499 |
| Countries in the Alps | 0 | - | 4.87 | 117,951 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,270 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,683 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,545 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,443 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,298 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,830 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,462 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,335 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,069 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,698 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,562 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,418 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,065 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,343 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,360 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,512 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,177 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,685 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,808 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,136 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,652 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,103 |
| Largest Countries By Category | 0 | - | 4.97 | 157,914 |
| Countries by Countries | 0 | - | 4.97 | 63,004 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,456 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,213 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,506 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,060 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,796 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,494 |
