| One Border Countries | 0 | - | 4.98 | 470,624 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,839,683 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,785 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,544 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,911 |
| Countries with Two Borders | 0 | - | 4.99 | 150,186 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,611 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,309 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,529 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,632 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,768 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,245 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,818 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,806 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,330 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,611 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,769 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,925 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,333 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,470 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,612 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,173 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,909 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,048 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,510 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,430 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,475 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,616 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,684,939 |
| Landlocked Countries | 0 | - | 4.99 | 423,264 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,989 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,787,799 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,115 |
| Himalayan Countries | 0 | - | 4.94 | 139,297 |
| Andean Countries | 0 | - | 4.93 | 84,924 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,140 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,301 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,718 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,034 |
| Danube Countries | 0 | - | 4.97 | 72,155 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,231 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,566 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,584 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,095 |
| European Landlocked Countries | 0 | - | 4.99 | 147,309 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,879 |
| Countries with the Most Species | 0 | - | 4.99 | 103,360 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,009 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,657 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,773 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,636 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,393 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,805 |
| Countries in the Alps | 0 | - | 4.87 | 118,410 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,860 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,329 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,772 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,746 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,658 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,062 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,850 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,629 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,261 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,983 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,734 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,605 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,343 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,591 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,658 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,231 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,429 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,909 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,281 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,628 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,494 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,335 |
| Largest Countries By Category | 0 | - | 4.97 | 158,449 |
| Countries by Countries | 0 | - | 4.96 | 63,387 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,901 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,332 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,821 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,735 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,927 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,162 |
| Island Countries | 0 | - | 4.99 | 711,531 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,525 |
| Northernmost Countries | 0 | - | 4.99 | 362,629 |
| Countries of South America | 0 | - | 5.00 | 929,172 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,174 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,387 |
| "Land" Countries | 0 | - | 4.98 | 337,703 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,792 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,979 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,210 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,538 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,155 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,210 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,346 |
| Random Countries by Borders | 0 | - | 4.99 | 82,789 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,293 |
| Countries with Megacities | 0 | - | 4.99 | 265,483 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,109 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,674 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,358 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,745 |
| Countries by Official Language | 0 | - | 4.95 | 195,516 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,753 |
| Countries in their Native Language | 0 | - | 4.99 | 199,302 |
| Independence from Whom | 0 | - | 4.99 | 212,399 |
| Subdivisions by Country | 0 | - | 4.87 | 50,500 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,957 |
| Megadiverse Countries | 0 | - | 4.96 | 135,112 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,323 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,429 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,310 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,145 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,303 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,670 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,648 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,722 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,190 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,964 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,975 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,287 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,025 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,448 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,563 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,624 |
| World Map Quiz | 0 | - | 4.81 | 65,279 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,361 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,446 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,150 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,671 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,049 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,160 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,420 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,512 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,673 |
| Widest Countries East to West | 0 | - | 4.92 | 129,782 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,484 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,795 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,402 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,862 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,737 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,999 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,423 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,827 |
| Countries with Double Letters | 0 | - | 4.96 | 96,545 |
| Countries that End in N | 0 | - | 4.95 | 171,442 |
| Countries with Five Letters | 0 | - | 4.96 | 282,996 |
| Countries with Six Letters | 0 | - | 4.94 | 213,865 |
| Countries with W | 0 | - | 4.96 | 160,549 |
| Countries with Z | 0 | - | 4.98 | 291,794 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,911 |
| Countries That End in U | 0 | - | 4.95 | 120,969 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,679 |
| Countries that End in O | 0 | - | 4.92 | 159,620 |
| Countries that End in R | 0 | - | 4.87 | 119,043 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,800 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,364 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,852 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,604 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,512 |
| Countries That End in Y | 0 | - | 4.91 | 185,956 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,097 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,014 |
| Countries that End in I | 0 | - | 4.94 | 135,181 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,278 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,897 |
| Countries That End in NIA | 0 | - | 4.92 | 109,866 |
| Countries That End in BIA | 0 | - | 4.93 | 149,336 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,257 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,549 |
| Countries That End in RIA | 0 | - | 4.93 | 126,903 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,149 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,946 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,879 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,311 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,861 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,651 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,144 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,473 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,652 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,517 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,137 |
| Countries that End in L | 0 | - | 4.94 | 156,944 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,397 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,296 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,112 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,038 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,083 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,982 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,842 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,254 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,983 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,642 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,995 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,150 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,740 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,067 |
