| One Border Countries | 0 | - | 4.98 | 472,045 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,489 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,047 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,076 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,755 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,381 |
| Countries with Two Borders | 0 | - | 4.99 | 150,397 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,801 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,550 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,739 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,828 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,897 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,404 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,877 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,861 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,493 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,653 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,922 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,374 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,700 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,772 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,906 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,445 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,306 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,154 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,806 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,573 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,728 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,820 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,893,421 |
| Landlocked Countries | 0 | - | 4.99 | 426,077 |
| Smallest Countries Bordering Each Other | 0 | - | 4.55 | 93,163 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,630 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,379 |
| Himalayan Countries | 0 | - | 4.93 | 140,336 |
| Andean Countries | 0 | - | 4.94 | 85,517 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,661 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,074 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,236 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,464 |
| Danube Countries | 0 | - | 4.97 | 72,429 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,624 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,860 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,166 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,649 |
| European Landlocked Countries | 0 | - | 4.99 | 147,626 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,337 |
| Countries with the Most Species | 0 | - | 4.99 | 103,579 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,434 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,853 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,590 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,033 |
| Countries in the Alps | 0 | - | 4.87 | 118,806 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,682 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,908 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,982 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,430 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,438 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,196 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,892 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,573 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,816 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,894 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,632 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,087 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,704 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,804 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,205 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,526 |
| Largest Countries By Category | 0 | - | 4.97 | 158,892 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,409 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,125 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,618 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,738 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,793 |
| Island Countries | 0 | - | 4.99 | 712,631 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,966 |
| Northernmost Countries | 0 | - | 4.99 | 364,104 |
| Countries of South America | 0 | - | 5.00 | 932,949 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,699 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,935 |
| "Land" Countries | 0 | - | 4.98 | 338,434 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,947 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,240 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,374 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,685 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,339 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,317 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,455 |
| Random Countries by Borders | 0 | - | 4.99 | 83,108 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,219 |
| Countries with Megacities | 0 | - | 4.99 | 267,233 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,903 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,166 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,217 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,281 |
| Countries by Official Language | 0 | - | 4.95 | 196,037 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,677 |
| Countries in their Native Language | 0 | - | 4.99 | 199,767 |
| Independence from Whom | 0 | - | 4.99 | 213,118 |
| Subdivisions by Country | 0 | - | 4.87 | 50,624 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,474 |
| Megadiverse Countries | 0 | - | 4.96 | 135,292 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,973 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,704 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,294 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,862 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,136 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,080 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,573 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,387 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,593 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,886 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,407 |
| World Map Quiz | 0 | - | 4.81 | 65,765 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,299 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,110 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,581 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,635 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,461 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,561 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,761 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,710 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,760 |
| Widest Countries East to West | 0 | - | 4.92 | 130,569 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,603 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,276 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,524 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,072 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,000 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,499 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,509 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,896 |
| Countries with Double Letters | 0 | - | 4.96 | 97,122 |
| Countries that End in N | 0 | - | 4.95 | 171,992 |
| Countries with Five Letters | 0 | - | 4.96 | 283,911 |
| Countries with Six Letters | 0 | - | 4.94 | 214,531 |
| Countries with W | 0 | - | 4.96 | 160,987 |
| Countries with Z | 0 | - | 4.98 | 292,507 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,317 |
| Countries That End in U | 0 | - | 4.95 | 121,208 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,140 |
| Countries that End in O | 0 | - | 4.92 | 160,230 |
| Countries that End in R | 0 | - | 4.87 | 119,195 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,955 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,893 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,179 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,849 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,778 |
| Countries That End in Y | 0 | - | 4.91 | 186,098 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,489 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,296 |
| Countries that End in I | 0 | - | 4.94 | 135,330 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,652 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,068 |
| Countries That End in NIA | 0 | - | 4.92 | 110,076 |
| Countries That End in BIA | 0 | - | 4.93 | 149,593 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,565 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,790 |
| Countries That End in RIA | 0 | - | 4.93 | 127,070 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,407 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,633 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,212 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,647 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,204 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,818 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,343 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,544 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,928 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,660 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,447 |
| Countries that End in L | 0 | - | 4.94 | 157,148 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,104 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,354 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,538 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,018 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,469 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,474 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,164 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,446 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,291 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,001 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,232 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,250 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,839 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,260 |
