| One Border Countries | 0 | - | 4.98 | 465,547 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,807,290 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,866 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,037 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,557 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,406 |
| Countries with Two Borders | 0 | - | 4.99 | 149,174 |
| Countries by Borders #2 | 0 | - | 4.96 | 135,789 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,539 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,403 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 114,868 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,268 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,683 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,611 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,634 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,752 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,516 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,255 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,628 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,178 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,603 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,774 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,299 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,168 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,728 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,505 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,408 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,561 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,057 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,041,726 |
| Landlocked Countries | 0 | - | 4.99 | 415,169 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,420 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,257 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,217 |
| Himalayan Countries | 0 | - | 4.95 | 135,910 |
| Andean Countries | 0 | - | 4.94 | 83,137 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,461 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,582 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,163 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,814 |
| Danube Countries | 0 | - | 4.97 | 71,246 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,975 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,692 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,828 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,751 |
| European Landlocked Countries | 0 | - | 4.99 | 145,946 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,490 |
| Countries with the Most Species | 0 | - | 4.99 | 95,329 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,615 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,263 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,436 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,055 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,707 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,062 |
| Countries in the Alps | 0 | - | 4.86 | 117,097 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,736 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,559 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,147 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,566 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,364 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,130 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,770 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,885 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,671 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,197 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,266 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,133 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,601 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,866 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,878 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,422 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,786 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,347 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,002 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,169 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,140 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,714 |
| Largest Countries By Category | 0 | - | 4.97 | 156,997 |
| Countries by Countries | 0 | - | 4.96 | 62,423 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,017 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,919 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,657 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,710 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,672 |
| Island Countries | 0 | - | 4.99 | 708,253 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,476 |
| Northernmost Countries | 0 | - | 4.99 | 358,604 |
| Countries of South America | 0 | - | 5.00 | 917,508 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,744 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,693 |
| "Land" Countries | 0 | - | 4.98 | 334,058 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,173 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,503 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,788 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,919 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,301 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,462 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,000 |
| Random Countries by Borders | 0 | - | 4.99 | 81,815 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,854 |
| Countries with Megacities | 0 | - | 4.99 | 248,072 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,729 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,319 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,120 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,267 |
| Countries by Official Language | 0 | - | 4.95 | 193,129 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,636 |
| Countries in their Native Language | 0 | - | 4.99 | 196,969 |
| Independence from Whom | 0 | - | 4.99 | 210,099 |
| Subdivisions by Country | 0 | - | 4.86 | 50,136 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,030 |
| Megadiverse Countries | 0 | - | 4.97 | 134,301 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,128 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,004 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,530 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,900 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,861 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,111 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,305 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,290 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,781 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,882 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,504 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,607 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,576 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,785 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,116 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,064 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,747 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,494 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,218 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,258 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,091 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,295 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,481 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,067 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,511 |
| Widest Countries East to West | 0 | - | 4.92 | 129,010 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,281 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,463 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,641 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,853 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,808 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,210 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,484 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,639 |
| Countries with Double Letters | 0 | - | 4.96 | 93,662 |
| Countries that End in N | 0 | - | 4.94 | 157,123 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,006 |
| Countries with Six Letters | 0 | - | 4.93 | 210,662 |
| Countries with W | 0 | - | 4.97 | 158,409 |
| Countries with Z | 0 | - | 4.98 | 288,214 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,747 |
| Countries That End in U | 0 | - | 4.95 | 119,602 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,853 |
| Countries that End in O | 0 | - | 4.92 | 158,641 |
| Countries that End in R | 0 | - | 4.87 | 118,367 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,929 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,393 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,533 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,638 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,190 |
| Countries That End in Y | 0 | - | 4.90 | 185,282 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,602 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,884 |
| Countries that End in I | 0 | - | 4.94 | 134,532 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,450 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,293 |
| Countries That End in NIA | 0 | - | 4.92 | 109,111 |
| Countries That End in BIA | 0 | - | 4.92 | 147,845 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,241 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,630 |
| Countries That End in RIA | 0 | - | 4.93 | 126,191 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,171 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,676 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,669 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,021 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,572 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,019 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,276 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,786 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,673 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,890 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,979 |
| Countries that End in L | 0 | - | 4.94 | 156,147 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,068 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,019 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,618 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,442 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,519 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,937 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,612 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,622 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,637 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,007 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,910 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,809 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,242 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,461 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,413 |
