| One Border Countries | 0 | - | 4.98 | 466,203 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,811,722 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,007 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,312 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,670 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,630 |
| Countries with Two Borders | 0 | - | 4.99 | 149,374 |
| Countries by Borders #2 | 0 | - | 4.96 | 135,970 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,644 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,514 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 114,973 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,344 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,774 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,646 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,658 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,821 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,922 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,311 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,799 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,305 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,683 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,865 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,407 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,258 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,767 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,631 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,514 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,661 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,124 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,129,755 |
| Landlocked Countries | 0 | - | 4.99 | 416,225 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,503 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,605 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,723 |
| Himalayan Countries | 0 | - | 4.95 | 136,326 |
| Andean Countries | 0 | - | 4.95 | 83,386 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,649 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,878 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,345 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,951 |
| Danube Countries | 0 | - | 4.97 | 71,352 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,146 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,812 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,068 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,020 |
| European Landlocked Countries | 0 | - | 4.99 | 146,077 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,691 |
| Countries with the Most Species | 0 | - | 4.99 | 99,689 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,840 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,310 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,486 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,127 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,779 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,151 |
| Countries in the Alps | 0 | - | 4.86 | 117,277 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,797 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,689 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,731 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,216 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,940 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,965 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,765 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,297 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,337 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,188 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,688 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,959 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,969 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,629 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,865 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,399 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,151 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,759 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,462 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,789 |
| Largest Countries By Category | 0 | - | 4.97 | 157,200 |
| Countries by Countries | 0 | - | 4.96 | 62,554 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,045 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,499 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,635 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,455 |
| Island Countries | 0 | - | 4.99 | 708,669 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,835 |
| Northernmost Countries | 0 | - | 4.99 | 359,149 |
| Countries of South America | 0 | - | 5.00 | 919,090 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,914 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,248 |
| "Land" Countries | 0 | - | 4.98 | 334,315 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,261 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,398 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,850 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,011 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,394 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,503 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,044 |
| Random Countries by Borders | 0 | - | 4.99 | 81,919 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,163 |
| Countries with Megacities | 0 | - | 4.99 | 248,703 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,026 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,481 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,394 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,430 |
| Countries by Official Language | 0 | - | 4.95 | 193,876 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,349 |
| Countries in their Native Language | 0 | - | 4.99 | 197,516 |
| Independence from Whom | 0 | - | 4.99 | 210,434 |
| Subdivisions by Country | 0 | - | 4.86 | 50,176 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,252 |
| Megadiverse Countries | 0 | - | 4.96 | 134,510 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,711 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,061 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,610 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,379 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,185 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,502 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,349 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,797 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,103 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,560 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,659 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,628 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,832 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,181 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,407 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,982 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,621 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,344 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,594 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,222 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,411 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,590 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,125 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,611 |
| Widest Countries East to West | 0 | - | 4.92 | 129,105 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,318 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,599 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,884 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,926 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,941 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,319 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,013 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,660 |
| Countries with Double Letters | 0 | - | 4.96 | 93,843 |
| Countries that End in N | 0 | - | 4.94 | 157,277 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,243 |
| Countries with Six Letters | 0 | - | 4.93 | 210,867 |
| Countries with W | 0 | - | 4.97 | 158,533 |
| Countries with Z | 0 | - | 4.98 | 288,434 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,871 |
| Countries That End in U | 0 | - | 4.95 | 119,672 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,035 |
| Countries that End in O | 0 | - | 4.92 | 158,712 |
| Countries that End in R | 0 | - | 4.87 | 118,422 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,978 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,599 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,652 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,739 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,307 |
| Countries That End in Y | 0 | - | 4.90 | 185,331 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,753 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,011 |
| Countries that End in I | 0 | - | 4.94 | 134,606 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,618 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,373 |
| Countries That End in NIA | 0 | - | 4.92 | 109,239 |
| Countries That End in BIA | 0 | - | 4.93 | 148,474 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,362 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,716 |
| Countries That End in RIA | 0 | - | 4.93 | 126,279 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,267 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,969 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,794 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,149 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,698 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,091 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,373 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,890 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,783 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,952 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,115 |
| Countries that End in L | 0 | - | 4.94 | 156,217 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,662 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,040 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,692 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,526 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,590 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,225 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,757 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,207 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,777 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,193 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,012 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,857 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,279 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,498 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,484 |
