| One Border Countries | 0 | - | 4.98 | 466,419 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,675 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,051 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,452 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,697 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,697 |
| Countries with Two Borders | 0 | - | 4.99 | 149,434 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,007 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,673 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,546 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,000 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,374 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,799 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,655 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,667 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,837 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,061 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,338 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,861 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,362 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,729 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,908 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,448 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,297 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,777 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,669 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,549 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,699 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,162 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,166,581 |
| Landlocked Countries | 0 | - | 4.99 | 416,691 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,520 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,740,814 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,955 |
| Himalayan Countries | 0 | - | 4.95 | 136,520 |
| Andean Countries | 0 | - | 4.95 | 83,497 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,761 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,012 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,432 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,032 |
| Danube Countries | 0 | - | 4.97 | 71,436 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,220 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,851 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,164 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,137 |
| European Landlocked Countries | 0 | - | 4.99 | 146,131 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,769 |
| Countries with the Most Species | 0 | - | 4.99 | 101,663 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,903 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,330 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,511 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,162 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,809 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,192 |
| Countries in the Alps | 0 | - | 4.86 | 117,333 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,910 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,900 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,253 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,744 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,828 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,256 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,990 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,995 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,808 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,332 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,367 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,205 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,730 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,001 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,005 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,721 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,896 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,431 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,250 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,028 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,572 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,830 |
| Largest Countries By Category | 0 | - | 4.97 | 157,259 |
| Countries by Countries | 0 | - | 4.96 | 62,594 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,081 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,087 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,874 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,836 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,810 |
| Island Countries | 0 | - | 4.99 | 708,827 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,383 |
| Northernmost Countries | 0 | - | 4.99 | 359,395 |
| Countries of South America | 0 | - | 5.00 | 919,727 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,738 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,858,890 |
| "Land" Countries | 0 | - | 4.98 | 334,615 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,285 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,545 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,872 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,040 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,421 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,523 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,063 |
| Random Countries by Borders | 0 | - | 4.99 | 81,953 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,289 |
| Countries with Megacities | 0 | - | 4.99 | 248,972 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,141 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,554 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,491 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,509 |
| Countries by Official Language | 0 | - | 4.95 | 194,014 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,578 |
| Countries in their Native Language | 0 | - | 4.99 | 197,637 |
| Independence from Whom | 0 | - | 4.99 | 210,816 |
| Subdivisions by Country | 0 | - | 4.86 | 50,199 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,337 |
| Megadiverse Countries | 0 | - | 4.96 | 134,543 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,838 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,076 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,629 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,446 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,216 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,596 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,371 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,807 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,178 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,579 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,687 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,645 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,859 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,202 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,569 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,066 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,670 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,400 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,715 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,269 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,465 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,630 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,151 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,638 |
| Widest Countries East to West | 0 | - | 4.92 | 129,140 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,329 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,657 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,923 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,959 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,982 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,361 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,100 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,676 |
| Countries with Double Letters | 0 | - | 4.96 | 94,142 |
| Countries that End in N | 0 | - | 4.95 | 165,830 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,588 |
| Countries with Six Letters | 0 | - | 4.93 | 211,142 |
| Countries with W | 0 | - | 4.97 | 158,813 |
| Countries with Z | 0 | - | 4.98 | 288,770 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,034 |
| Countries That End in U | 0 | - | 4.95 | 119,921 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,157 |
| Countries that End in O | 0 | - | 4.92 | 158,864 |
| Countries that End in R | 0 | - | 4.87 | 118,510 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,287 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,756 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,736 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,812 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,378 |
| Countries That End in Y | 0 | - | 4.90 | 185,422 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,833 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,089 |
| Countries that End in I | 0 | - | 4.94 | 134,667 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,692 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,411 |
| Countries That End in NIA | 0 | - | 4.92 | 109,295 |
| Countries That End in BIA | 0 | - | 4.93 | 148,565 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,427 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,770 |
| Countries That End in RIA | 0 | - | 4.93 | 126,346 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,332 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,079 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,870 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,205 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,782 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,142 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,438 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,940 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,835 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,998 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,205 |
| Countries that End in L | 0 | - | 4.94 | 156,289 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,892 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,069 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,712 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,563 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,616 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,323 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,809 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,326 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,821 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,249 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,048 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,869 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,294 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,523 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,520 |
