| Boundary Waters | 0 | - | 4.92 | 88,571 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,249 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,268 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,581,989 |
| Landlocked Countries | 0 | - | 4.99 | 421,956 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,706 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,414 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,421 |
| World Capitals Quiz | 0 | - | 5.00 | 5,083,192 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,443 |
| Himalayan Countries | 0 | - | 4.94 | 138,714 |
| Andean Countries | 0 | - | 4.93 | 84,602 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,799 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,816 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,426 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,804 |
| Danube Countries | 0 | - | 4.97 | 72,009 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,015 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,420 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,305 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,784 |
| European Landlocked Countries | 0 | - | 4.99 | 147,144 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,643 |
| Countries with the Most Species | 0 | - | 4.99 | 103,244 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,764 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,594 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,721 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,542 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,226 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,660 |
| Countries in the Alps | 0 | - | 4.87 | 118,202 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,120 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,036 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,643 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,597 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,510 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,946 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,671 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,491 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,178 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,848 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,652 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,526 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,222 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,466 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,520 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,905 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,307 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 63,776 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,076 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,935 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,109 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,232 |
| Largest Countries By Category | 0 | - | 4.97 | 158,210 |
| Countries by Countries | 0 | - | 4.96 | 63,221 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,682 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,287 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,675 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,778,632 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,711 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,859 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,503 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,499 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,000 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,288 |
| Longest International Borders | 0 | - | 4.99 | 265,202 |
| Countries with Three Borders | 0 | - | 4.96 | 36,614 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,129 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,225 |
| Demonym of Every Country | 0 | - | 4.91 | 60,705 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,561 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,590,453 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,493 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,241 |
| Island Countries | 0 | - | 4.99 | 711,048 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,855 |
| Northernmost Countries | 0 | - | 4.99 | 361,958 |
| Countries of South America | 0 | - | 5.00 | 927,320 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,857 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,877,242 |
| "Land" Countries | 0 | - | 4.98 | 337,334 |
| Top World Languages | 0 | - | 4.92 | 824,216 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,383,647 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,183 |
| All Country Flags of the World | 0 | - | 5.00 | 3,678,837 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,448 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,335 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,555 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,448,148 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,970 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,887 |
| Countries with Megacities | 0 | - | 4.99 | 264,561 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,737 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,468 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 137,995 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,540 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,824 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,465 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,522 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,541 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,669 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,475 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,292 |
| Countries by Capital City | 0 | - | 5.00 | 68,611 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,363 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,800 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,088 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,397 |
| Moved Capital Cities | 0 | - | 4.96 | 74,333 |
| Countries by Official Language | 0 | - | 4.95 | 195,241 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,368 |
| Countries in their Native Language | 0 | - | 4.99 | 199,041 |
| Independence from Whom | 0 | - | 4.99 | 212,089 |
| Subdivisions by Country | 0 | - | 4.86 | 50,430 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,728 |
| Megadiverse Countries | 0 | - | 4.96 | 135,010 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,086 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,346 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,234 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,099 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,136 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,595 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,464 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,030 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,656 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,145 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,665 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,881 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,202 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,964 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,346 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,496 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,177 |
| World Map Quiz | 0 | - | 4.81 | 65,083 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,291 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,347 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,092 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,275 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,995 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,185 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,888 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,008 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,297 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,438 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,570 |
| Widest Countries East to West | 0 | - | 4.92 | 129,645 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,456 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,377 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,119 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,766 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,596 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,870 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,371 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,796 |
| Countries with Double Letters | 0 | - | 4.96 | 96,231 |
| Countries that End in N | 0 | - | 4.95 | 171,109 |
| Countries with Five Letters | 0 | - | 4.96 | 282,445 |
| Countries with Six Letters | 0 | - | 4.94 | 213,543 |
| Countries with W | 0 | - | 4.97 | 160,317 |
| Countries with Z | 0 | - | 4.98 | 291,433 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,689 |
| Countries That End in U | 0 | - | 4.95 | 120,849 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,451 |
| Countries that End in O | 0 | - | 4.92 | 159,504 |
| Countries that End in R | 0 | - | 4.87 | 118,962 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,728 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,072 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,687 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,467 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,392 |
| Countries That End in Y | 0 | - | 4.91 | 185,867 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,906 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,846 |
| Countries that End in I | 0 | - | 4.94 | 135,087 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,089 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,820 |
| Countries That End in NIA | 0 | - | 4.92 | 109,780 |
| Countries That End in BIA | 0 | - | 4.93 | 149,190 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,114 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,419 |
| Countries That End in RIA | 0 | - | 4.93 | 126,802 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,014 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,586 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,687 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,107 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,665 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,571 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,017 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,439 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,515 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,410 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,273 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,973 |
| Countries that End in L | 0 | - | 4.94 | 156,834 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,718 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,261 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,017 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,948 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,993 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,732 |
