| One Border Countries | 0 | - | 4.98 | 444,814 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,629,711 |
| Countries by Borders #1 | 0 | - | 5.00 | 182,846 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 299,984 |
| Longest Border by Country #1 | 0 | - | 4.99 | 140,946 |
| Largest Countries with No Borders | 0 | - | 4.96 | 211,170 |
| Countries with Two Borders | 0 | - | 4.99 | 132,930 |
| Countries by Borders #2 | 0 | - | 4.96 | 123,587 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 135,808 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 125,842 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 101,318 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.93 | 81,779 |
| Countries by Borders #3 | 0 | - | 4.99 | 93,940 |
| Bordering Countries Forming Words #1 | 0 | - | 4.91 | 74,253 |
| Longest Border by Country #2 | 0 | - | 4.95 | 117,639 |
| Countries with the Most Borders | 0 | - | 4.97 | 373,311 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 31,345 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 81,677 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 103,399 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 100,728 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.98 | 107,344 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 84,888 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 99,021 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,527 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 49,966 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 76,723 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 148,980 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,690 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.91 | 19,652 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,271,788 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 381,854 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 88,076 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,402,492 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,469,844 |
| Sahara Desert Countries | 0 | - | 4.97 | 145,217 |
| Himalayan Countries | 0 | - | 4.95 | 121,891 |
| Andean Countries | 0 | - | 4.92 | 68,492 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,529 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,807 |
| Coffee Producing Countries | 0 | - | 4.83 | 59,740 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 59,155 |
| Danube Countries | 0 | - | 4.97 | 60,756 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,738 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,802 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,301 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,511 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,909 |
| European Landlocked Countries | 0 | - | 4.99 | 140,932 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,934 |
| Countries with the Most Species | 0 | - | 4.99 | 92,290 |
| Countries 197 to 205 | 0 | - | 4.87 | 63,348 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 46,655 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,757 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,510 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,258 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,887 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,575 |
| Countries in the Alps | 0 | - | 4.86 | 110,319 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,618 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,615 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,329 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,643 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,526 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,876 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,907 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,774 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,920 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,717 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 72,673 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,211 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 39,063 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,090 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,778 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,441 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,822 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,741 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,667 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 221,667 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,812 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,044 |
| Largest Countries By Category | 0 | - | 4.97 | 151,225 |
| Countries by Countries | 0 | - | 4.96 | 58,389 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,859 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,974 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 382,014 |
| Island Countries Quiz | 0 | - | 4.99 | 690,371 |
| Biggest Countries by Area | 0 | - | 5.00 | 989,060 |
| Northernmost Countries | 0 | - | 4.99 | 342,570 |
| Countries of South America | 0 | - | 5.00 | 861,917 |
| Countries of Oceania | 0 | - | 5.00 | 974,515 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,728,974 |
| Which Country Does Not Border... | 0 | - | 4.78 | 90,431 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,255,571 |
| Bordering Countries by Clue #1 | 0 | - | 4.96 | 71,747 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 73,248 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 102,644 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 121,148 |
| Borders of One Border Countries | 0 | - | 4.18 | 84,413 |
| Random Countries by Borders | 0 | - | 4.99 | 71,000 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,673 |
| Countries with Megacities | 0 | - | 4.99 | 217,805 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,587 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 106,182 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,564 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 73,134 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,730 |
| Countries by Official Language | 0 | - | 4.95 | 183,991 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,907 |
| Countries in their Native Language | 0 | - | 4.98 | 188,768 |
| Independence from Whom | 0 | - | 4.99 | 199,767 |
| Subdivisions by Country | 0 | - | 4.86 | 48,508 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,684 |
| Megadiverse Countries | 0 | - | 4.96 | 130,462 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 122,055 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 121,571 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,311 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,395 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,455 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 86,755 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,392 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,404 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 67,305 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,848 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,935 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,182 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,143 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,592 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 98,056 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,548 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,714 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,566 |
| Countries With the Most Languages | 0 | - | 4.89 | 189,165 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,526 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,558 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,573 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,347 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,586 |
| Widest Countries East to West | 0 | - | 4.92 | 124,717 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,195 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 179,293 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,442 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,259 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,399 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,312 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,032 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,551 |
| Countries with Double Letters | 0 | - | 4.96 | 82,232 |
| Countries that End in N | 0 | - | 4.93 | 146,139 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 246,064 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,554 |
| Countries with W | 0 | - | 4.97 | 147,816 |
| Countries with Z | 0 | - | 4.98 | 275,999 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,510 |
| Countries That End in U | 0 | - | 4.95 | 114,332 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 100,549 |
| Countries that End in O | 0 | - | 4.91 | 154,439 |
| Countries that End in R | 0 | - | 4.84 | 99,958 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,945 |
| Countries Ending in "IA" | 0 | - | 4.99 | 198,146 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,351 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,867 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,628 |
| Countries That End in Y | 0 | - | 4.91 | 182,123 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,273 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,513 |
| Countries that End in I | 0 | - | 4.92 | 117,462 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,396 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,223 |
| Countries That End in NIA | 0 | - | 4.92 | 105,138 |
| Countries That End in BIA | 0 | - | 4.92 | 142,773 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,284 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,780 |
| Countries That End in RIA | 0 | - | 4.90 | 105,491 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 105,929 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 215,326 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,261 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 119,096 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,974 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 71,201 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,615 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,959 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,273 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 47,785 |
| Countries that End in L | 0 | - | 4.94 | 151,812 |
| "Land" Countries | 0 | - | 4.98 | 299,692 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,562 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,944 |
| City to Country Quiz #1 | 0 | - | 4.96 | 150,523 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,751 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,611 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 219,202 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 192,406 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 122,088 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,855 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 215,948 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 147,174 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,726 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 105,979 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,863 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,787 |
