| One Border Countries | 0 | - | 4.98 | 470,692 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,840,184 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,803 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,434 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,551 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,921 |
| Countries with Two Borders | 0 | - | 4.99 | 150,198 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,627 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,315 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,546 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,646 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,778 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,255 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,818 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,808 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,340 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,642 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,780 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,948 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,349 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,481 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,626 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,186 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,922 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,054 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,523 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,441 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,493 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,628 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,694,221 |
| Landlocked Countries | 0 | - | 4.99 | 423,359 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,998 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,788,568 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,153 |
| Himalayan Countries | 0 | - | 4.94 | 139,344 |
| Andean Countries | 0 | - | 4.94 | 84,942 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,167 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,328 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,731 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,045 |
| Danube Countries | 0 | - | 4.97 | 72,166 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,241 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,569 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,606 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,112 |
| European Landlocked Countries | 0 | - | 4.99 | 147,322 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,894 |
| Countries with the Most Species | 0 | - | 4.99 | 103,377 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,028 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,661 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,776 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,643 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,401 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,808 |
| Countries in the Alps | 0 | - | 4.87 | 118,423 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,906 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,355 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,782 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,762 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,670 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,067 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,859 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,637 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,268 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,988 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,739 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,611 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,353 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,601 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,673 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,253 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,435 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,983 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,291 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,693 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,519 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,337 |
| Largest Countries By Category | 0 | - | 4.97 | 158,470 |
| Countries by Countries | 0 | - | 4.96 | 63,396 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,333 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,832 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,827 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,957 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,237 |
| Island Countries | 0 | - | 4.99 | 711,566 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,699 |
| Northernmost Countries | 0 | - | 4.99 | 362,690 |
| Countries of South America | 0 | - | 5.00 | 929,351 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,375 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,773 |
| "Land" Countries | 0 | - | 4.98 | 337,734 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,798 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,387,305 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,214 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,548 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,160 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,210 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,355 |
| Random Countries by Borders | 0 | - | 4.99 | 82,801 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,331 |
| Countries with Megacities | 0 | - | 4.99 | 265,557 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,127 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,691 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,389 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,766 |
| Countries by Official Language | 0 | - | 4.95 | 195,538 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,789 |
| Countries in their Native Language | 0 | - | 4.99 | 199,323 |
| Independence from Whom | 0 | - | 4.99 | 212,430 |
| Subdivisions by Country | 0 | - | 4.87 | 50,504 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,980 |
| Megadiverse Countries | 0 | - | 4.96 | 135,121 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,342 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,434 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,316 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,148 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,319 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,674 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,661 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,726 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,194 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,986 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,979 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,295 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,035 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,453 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,577 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,663 |
| World Map Quiz | 0 | - | 4.81 | 65,296 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,393 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,478 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,173 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,721 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,068 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,184 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,432 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,518 |
| Tallest Countries North to South | 0 | - | 4.83 | 121,763 |
| Widest Countries East to West | 0 | - | 4.92 | 129,817 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,489 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,940 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,405 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,871 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,751 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,011 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,428 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,830 |
| Countries with Double Letters | 0 | - | 4.96 | 96,562 |
| Countries that End in N | 0 | - | 4.95 | 171,465 |
| Countries with Five Letters | 0 | - | 4.96 | 283,037 |
| Countries with Six Letters | 0 | - | 4.94 | 213,904 |
| Countries with W | 0 | - | 4.96 | 160,567 |
| Countries with Z | 0 | - | 4.98 | 291,825 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,933 |
| Countries That End in U | 0 | - | 4.95 | 120,979 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,710 |
| Countries that End in O | 0 | - | 4.92 | 159,632 |
| Countries that End in R | 0 | - | 4.87 | 119,052 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,807 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,387 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,864 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,616 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,522 |
| Countries That End in Y | 0 | - | 4.91 | 185,964 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,122 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,022 |
| Countries that End in I | 0 | - | 4.94 | 135,190 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,296 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,904 |
| Countries That End in NIA | 0 | - | 4.92 | 109,872 |
| Countries That End in BIA | 0 | - | 4.93 | 149,350 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,273 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,563 |
| Countries That End in RIA | 0 | - | 4.93 | 126,911 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,154 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,960 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,892 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,323 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,879 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,658 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,148 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,476 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,661 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,523 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,148 |
| Countries that End in L | 0 | - | 4.94 | 156,958 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,448 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,299 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,125 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,048 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,097 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,007 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,859 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,264 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,005 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,652 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,008 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,155 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,747 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,075 |
