| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,822,315 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,897 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,497 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,208 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,700 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,155 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,697 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,469 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,857 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,944 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,838 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,024 |
| One Border Countries | 0 | - | 4.98 | 467,640 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,983 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,259 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,811 |
| Random Countries by Borders | 0 | - | 4.99 | 82,277 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,551 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,411 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,368 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,328,330 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,815 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 120,823 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,293 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,262 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,885 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,121 |
| Countries with Two Borders | 0 | - | 4.99 | 149,665 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,209 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,885 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,754 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,194 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,516 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,967 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,719 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,712 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,989 |
| Landlocked Countries | 0 | - | 4.99 | 418,852 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 98,094 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,756,304 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,867 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,902 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,496 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,965 |
| Himalayan Countries | 0 | - | 4.94 | 137,386 |
| Andean Countries | 0 | - | 4.95 | 83,915 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,213 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,627 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,820 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,341 |
| Danube Countries | 0 | - | 4.97 | 71,649 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,537 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,047 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,630 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,714 |
| European Landlocked Countries | 0 | - | 4.99 | 146,769 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,123 |
| Countries with the Most Species | 0 | - | 4.99 | 102,900 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,257 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,429 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,584 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,294 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,979 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,356 |
| Countries in the Alps | 0 | - | 4.87 | 117,679 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,122 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,353 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,404 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,976 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,082 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,483 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,273 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,179 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,962 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,546 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,474 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,335 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,916 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,179 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,201 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,156 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,057 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,567 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,509 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,324 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,203 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,992 |
| Largest Countries By Category | 0 | - | 4.97 | 157,622 |
| Countries by Countries | 0 | - | 4.96 | 62,830 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,314 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,895 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,576 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,053 |
| Island Countries | 0 | - | 4.99 | 709,714 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,953 |
| Northernmost Countries | 0 | - | 4.99 | 360,420 |
| Countries of South America | 0 | - | 5.00 | 922,796 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,864 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,083 |
| "Land" Countries | 0 | - | 4.98 | 335,777 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,437 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,378 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,289 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,523 |
| Five Most Guessed Countries by Continent | 0 | - | 4.97 | 172,392 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,903 |
| European Countries with One Border | 0 | - | 4.97 | 182,522 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,326 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,997 |
| Countries with Megacities | 0 | - | 4.99 | 259,304 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,862 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,977 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,151 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,979 |
| Countries by Official Language | 0 | - | 4.95 | 194,626 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,508 |
| Countries in their Native Language | 0 | - | 4.99 | 198,169 |
| Independence from Whom | 0 | - | 4.99 | 211,286 |
| Subdivisions by Country | 0 | - | 4.86 | 50,285 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,688 |
| Megadiverse Countries | 0 | - | 4.96 | 134,756 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,534 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,180 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,749 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,014 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,702 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,377 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,964 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,476 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,986 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,932 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,708 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,989 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,769 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,145 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,320 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,166 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,484 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,919 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,630 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,308 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,513 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,666 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,820 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,256 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,276 |
| Widest Countries East to West | 0 | - | 4.92 | 129,364 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,380 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,950 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,988 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,505 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,211 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,536 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,228 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,724 |
| Countries with Double Letters | 0 | - | 4.97 | 95,074 |
| Countries that End in N | 0 | - | 4.95 | 169,968 |
| Countries with Five Letters | 0 | - | 4.96 | 280,116 |
| Countries with Six Letters | 0 | - | 4.94 | 212,460 |
| Countries with W | 0 | - | 4.97 | 159,513 |
| Countries with Z | 0 | - | 4.98 | 289,782 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,724 |
| Countries That End in U | 0 | - | 4.95 | 120,405 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,737 |
| Countries that End in O | 0 | - | 4.92 | 159,190 |
| Countries that End in R | 0 | - | 4.87 | 118,727 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,507 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,315 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,094 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,072 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,658 |
| Countries That End in Y | 0 | - | 4.90 | 185,646 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,219 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,411 |
| Countries that End in I | 0 | - | 4.94 | 134,861 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,064 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,572 |
| Countries That End in NIA | 0 | - | 4.92 | 109,511 |
| Countries That End in BIA | 0 | - | 4.93 | 148,837 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,702 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,051 |
| Countries That End in RIA | 0 | - | 4.93 | 126,528 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,612 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,663 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,212 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,567 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,100 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,316 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,680 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,231 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,188 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,527 |
| Countries that End in L | 0 | - | 4.94 | 156,536 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,967 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,152 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,830 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,718 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,773 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,766 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,157 |
