| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,835,658 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,169 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,714 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,754 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,170 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,346 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,508 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,053 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,798 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,007 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,358 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,049 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,374 |
| One Border Countries | 0 | - | 4.98 | 469,985 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,533 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,155 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,471 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 109,069 |
| Random Countries by Borders | 0 | - | 4.99 | 82,666 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,602,211 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,661 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,118 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,435 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,731 |
| Countries with Two Borders | 0 | - | 4.99 | 149,998 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,514 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,202 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,084 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,528 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,710 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,183 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,792 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,781 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,272 |
| Landlocked Countries | 0 | - | 4.99 | 422,220 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,422 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,606 |
| Himalayan Countries | 0 | - | 4.95 | 138,853 |
| Andean Countries | 0 | - | 4.93 | 84,682 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,884 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,924 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,512 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,854 |
| Danube Countries | 0 | - | 4.97 | 72,043 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,059 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,455 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,362 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,849 |
| European Landlocked Countries | 0 | - | 4.99 | 147,176 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,688 |
| Countries with the Most Species | 0 | - | 4.99 | 103,267 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,814 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,607 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,732 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,563 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,254 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,691 |
| Countries in the Alps | 0 | - | 4.87 | 118,246 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,265 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,079 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,679 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,624 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,547 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,967 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,701 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,516 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,199 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,877 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,668 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,541 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,245 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,499 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,552 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,968 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,334 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,094 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,128 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,063 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,192 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,254 |
| Largest Countries By Category | 0 | - | 4.97 | 158,256 |
| Countries by Countries | 0 | - | 4.96 | 63,260 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,299 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,695 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,762 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,580 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,491 |
| Island Countries | 0 | - | 4.99 | 711,135 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,178 |
| Northernmost Countries | 0 | - | 4.99 | 362,069 |
| Countries of South America | 0 | - | 5.00 | 927,687 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,411 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,063 |
| "Land" Countries | 0 | - | 4.98 | 337,408 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 226,952 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,305 |
| European Countries with One Border | 0 | - | 4.97 | 183,135 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,906 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,964 |
| Countries with Megacities | 0 | - | 4.99 | 264,699 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,794 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,504 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,059 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,578 |
| Countries by Official Language | 0 | - | 4.95 | 195,302 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,443 |
| Countries in their Native Language | 0 | - | 4.99 | 199,091 |
| Independence from Whom | 0 | - | 4.99 | 212,156 |
| Subdivisions by Country | 0 | - | 4.86 | 50,438 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,771 |
| Megadiverse Countries | 0 | - | 4.96 | 135,037 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,137 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,375 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,248 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,117 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,168 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,610 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,508 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,671 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,154 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,712 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,899 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,220 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,983 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,368 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,507 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,257 |
| World Map Quiz | 0 | - | 4.81 | 65,135 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,137 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,308 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,018 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,274 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,918 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,031 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,322 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,456 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,591 |
| Widest Countries East to West | 0 | - | 4.92 | 129,672 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,462 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,403 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,128 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,783 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,618 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,888 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,380 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,802 |
| Countries with Double Letters | 0 | - | 4.96 | 96,280 |
| Countries that End in N | 0 | - | 4.95 | 171,165 |
| Countries with Five Letters | 0 | - | 4.96 | 282,565 |
| Countries with Six Letters | 0 | - | 4.94 | 213,602 |
| Countries with W | 0 | - | 4.97 | 160,355 |
| Countries with Z | 0 | - | 4.98 | 291,509 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,733 |
| Countries That End in U | 0 | - | 4.95 | 120,865 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,493 |
| Countries that End in O | 0 | - | 4.92 | 159,518 |
| Countries that End in R | 0 | - | 4.87 | 118,975 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,738 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,141 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,709 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,484 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,412 |
| Countries That End in Y | 0 | - | 4.91 | 185,884 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,954 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,873 |
| Countries that End in I | 0 | - | 4.94 | 135,107 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,135 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,827 |
| Countries That End in NIA | 0 | - | 4.92 | 109,796 |
| Countries That End in BIA | 0 | - | 4.93 | 149,225 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,136 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,440 |
| Countries That End in RIA | 0 | - | 4.93 | 126,814 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,034 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,665 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,728 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,150 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,702 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,584 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,039 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,449 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,533 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,429 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,999 |
| Countries that End in L | 0 | - | 4.94 | 156,851 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,857 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,271 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,034 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,963 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,011 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,779 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,679 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,035 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,626 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,474 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,880 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,108 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,712 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,882 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 384,934 |
