| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,814,651 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,160 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,357 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,906 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,427 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,771 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,934 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,483 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,315 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,786 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,702 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,571 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,730 |
| One Border Countries | 0 | - | 4.98 | 466,571 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,193 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,885 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,056 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,443 |
| Random Countries by Borders | 0 | - | 4.99 | 82,032 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,184,957 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,081 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,741 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,713 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,746 |
| Countries with Two Borders | 0 | - | 4.99 | 149,465 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,037 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,714 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,570 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,028 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,387 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,817 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,658 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,674 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,857 |
| Landlocked Countries | 0 | - | 4.99 | 416,938 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,742,610 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,057 |
| Himalayan Countries | 0 | - | 4.95 | 136,615 |
| Andean Countries | 0 | - | 4.95 | 83,545 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,798 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,087 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,470 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,064 |
| Danube Countries | 0 | - | 4.97 | 71,462 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,268 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,871 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,215 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,204 |
| European Landlocked Countries | 0 | - | 4.99 | 146,161 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,819 |
| Countries with the Most Species | 0 | - | 4.99 | 102,117 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,945 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,344 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,524 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,182 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,829 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,212 |
| Countries in the Alps | 0 | - | 4.86 | 117,372 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,928 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,954 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,275 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,767 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,862 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,278 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,018 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,009 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,830 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,371 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,377 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,215 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,751 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,023 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,028 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,767 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,917 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,448 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,271 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,160 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,645 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,845 |
| Largest Countries By Category | 0 | - | 4.97 | 157,306 |
| Countries by Countries | 0 | - | 4.96 | 62,619 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,089 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,116 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,182 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,928 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,968 |
| Island Countries | 0 | - | 4.99 | 708,913 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,662 |
| Northernmost Countries | 0 | - | 4.99 | 359,500 |
| Countries of South America | 0 | - | 5.00 | 920,045 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,508 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,647 |
| "Land" Countries | 0 | - | 4.98 | 334,720 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,868 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,183 |
| European Countries with One Border | 0 | - | 4.97 | 182,171 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,036 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,394 |
| Countries with Megacities | 0 | - | 4.99 | 249,171 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,253 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,610 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,570 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,574 |
| Countries by Official Language | 0 | - | 4.95 | 194,071 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,838 |
| Countries in their Native Language | 0 | - | 4.99 | 197,684 |
| Independence from Whom | 0 | - | 4.99 | 210,875 |
| Subdivisions by Country | 0 | - | 4.86 | 50,212 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,393 |
| Megadiverse Countries | 0 | - | 4.96 | 134,568 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,896 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,088 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,643 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,955 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,469 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,247 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,645 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,388 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,811 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,335 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,594 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,697 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,662 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,875 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,221 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,650 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,099 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,694 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,425 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,768 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,299 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,487 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,651 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,159 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,664 |
| Widest Countries East to West | 0 | - | 4.92 | 129,169 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,334 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,693 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,935 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,971 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,002 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,386 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,125 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,681 |
| Countries with Double Letters | 0 | - | 4.96 | 94,222 |
| Countries that End in N | 0 | - | 4.95 | 167,413 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,687 |
| Countries with Six Letters | 0 | - | 4.93 | 211,214 |
| Countries with W | 0 | - | 4.97 | 158,897 |
| Countries with Z | 0 | - | 4.98 | 288,878 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,105 |
| Countries That End in U | 0 | - | 4.95 | 119,978 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,217 |
| Countries that End in O | 0 | - | 4.92 | 158,906 |
| Countries that End in R | 0 | - | 4.87 | 118,537 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,307 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,819 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,784 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,841 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,416 |
| Countries That End in Y | 0 | - | 4.90 | 185,453 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,887 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,117 |
| Countries that End in I | 0 | - | 4.94 | 134,697 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,735 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,424 |
| Countries That End in NIA | 0 | - | 4.92 | 109,314 |
| Countries That End in BIA | 0 | - | 4.93 | 148,601 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,452 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,800 |
| Countries That End in RIA | 0 | - | 4.93 | 126,363 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,365 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,149 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,892 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,226 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,823 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,164 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,469 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,974 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,869 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,033 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,239 |
| Countries that End in L | 0 | - | 4.94 | 156,314 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,018 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,074 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,721 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,583 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,632 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,369 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,829 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,373 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,856 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,286 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,060 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,880 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,300 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,530 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,531 |
| World Map with 10 Random Extra Borders | 0 | - | 4.95 | 380,807 |
