| Boundary Waters | 0 | - | 4.93 | 82,120 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,606 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,852 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,656 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,871,793 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,390 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 140,087 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,790 |
| Members of the Arab League | 0 | - | 4.86 | 66,745 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,868 |
| Himalayan Countries | 0 | - | 4.94 | 108,803 |
| Andean Countries | 0 | - | 4.91 | 60,442 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,653 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 51,044 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,675 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,957 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,407 |
| Danube Countries | 0 | - | 4.96 | 57,306 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,316 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,369 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,899 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,553 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,236 |
| European Landlocked Countries | 0 | - | 4.99 | 137,324 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,975 |
| Countries with the Most Species | 0 | - | 4.99 | 90,110 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,504 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,071 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,372 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,176 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,189 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 50,037 |
| Countries in the Alps | 0 | - | 4.84 | 104,039 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,608 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,895 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,400 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,503 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 95,027 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,464 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,672 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,850 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,761 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,512 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,279 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,088 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,079 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,695 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,784 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,362 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,904 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,061 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,148 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,555 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,828 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,920 |
| Largest Countries By Category | 0 | - | 4.97 | 146,647 |
| Countries by Countries | 0 | - | 4.96 | 55,744 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,279 |
| Country Flags With Only Two Colors | 0 | - | 4.93 | 79,818 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,459 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,767 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,658 |
| Who Controls It? #1 | 0 | - | 4.82 | 45,949 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,567 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 112,008 |
| Longest International Borders | 0 | - | 4.99 | 236,969 |
| Countries with Three Borders | 0 | - | 4.96 | 32,241 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 37,006 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,531 |
| World Capitals Quiz | 0 | - | 5.00 | 4,588,003 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,186,123 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,238,672 |
| Demonyms Quiz | 0 | - | 4.11 | 180,036 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,412,075 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,697 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,630 |
| Island Countries Quiz | 0 | - | 4.99 | 669,726 |
| Biggest Countries by Area | 0 | - | 5.00 | 949,451 |
| Northernmost Countries | 0 | - | 4.99 | 331,310 |
| Countries of South America | 0 | - | 5.00 | 812,261 |
| Countries of Oceania | 0 | - | 5.00 | 916,332 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,616,386 |
| Top World Languages | 0 | - | 4.92 | 725,473 |
| Analogies of Countries #1 | 0 | - | 4.87 | 63,508 |
| Pacific Ocean General Knowledge | 0 | - | 4.59 | 26,904 |
| Largest Deserts in the World | 0 | - | 4.02 | 41,683 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,927 |
| World Map Divided into Regions | 0 | - | 4.18 | 36,490 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 79,087 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,411 |
| Countries with Megacities | 0 | - | 4.99 | 202,351 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,783 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,189 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,555 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,140 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,728 |
| Global Cities on a World Map | 0 | - | 4.92 | 93,189 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,238 |
| Most Remote Capital Cities | 0 | - | 4.90 | 45,033 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,771 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,501 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,554 |
| Countries by Capital City | 0 | - | 4.99 | 51,797 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,375 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,332 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,643 |
| Moved Capital Cities | 0 | - | 4.96 | 68,054 |
| Countries by Official Language | 0 | - | 4.96 | 175,549 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 254,043 |
| Countries in their Native Language | 0 | - | 4.98 | 180,883 |
| Independence from Whom | 0 | - | 4.99 | 189,791 |
| Subdivisions by Country | 0 | - | 4.85 | 46,966 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,927 |
| Megadiverse Countries | 0 | - | 4.96 | 126,920 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,198 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,710 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,879 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,535 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,997 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,850 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,131 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,800 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,904 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,276 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,357 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,059 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,605 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,487 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,115 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 87,110 |
| World Map Quiz | 0 | - | 4.90 | 51,749 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,885 |
| Southernmost Countries of the World | 0 | - | 4.99 | 210,085 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 93,021 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,414 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,231 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,816 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,246 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 88,486 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,217 |
| Tallest Countries North to South | 0 | - | 4.84 | 111,725 |
| Widest Countries East to West | 0 | - | 4.93 | 120,697 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,160 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,757 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,938 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,491 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,981 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,795 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,641 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,838 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,459 |
| Countries with Double Letters | 0 | - | 4.96 | 72,716 |
| Countries that End in N | 0 | - | 4.93 | 136,973 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,726 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 191,255 |
| Countries with W | 0 | - | 4.97 | 126,346 |
| Countries with Z | 0 | - | 4.98 | 265,425 |
| Countries with Letters Missing | 0 | - | 4.97 | 170,196 |
| Countries That End in U | 0 | - | 4.95 | 109,917 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 93,014 |
| Countries that End in O | 0 | - | 4.92 | 149,169 |
| Countries that End in R | 0 | - | 4.85 | 97,556 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,497 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,655 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,981 |
| Countries by Last Two Letters | 0 | - | 4.89 | 117,899 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,828 |
| Countries That End in Y | 0 | - | 4.92 | 178,121 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,250 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,813 |
| Countries that End in I | 0 | - | 4.92 | 115,357 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,894 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,535 |
| Countries That End in NIA | 0 | - | 4.92 | 101,973 |
| Countries That End in BIA | 0 | - | 4.91 | 127,508 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,388 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 111,124 |
| Countries That End in RIA | 0 | - | 4.90 | 102,047 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 101,953 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 205,262 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,948 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 113,090 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,589 |
| Countries With One Word and Three A's | 0 | - | 4.93 | 43,757 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 94,004 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,348 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,824 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,728 |
| Countries that End in L | 0 | - | 4.95 | 136,049 |
| "Land" Countries | 0 | - | 4.98 | 292,645 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,498 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,953 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,507 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,168 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,774 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,410 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 171,269 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,995 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 135,117 |
