| One Border Countries | 0 | - | 4.98 | 471,876 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,848,183 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,010 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,994 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,730 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,318 |
| Countries with Two Borders | 0 | - | 4.99 | 150,371 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,779 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,519 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 131,709 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,808 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,884 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,385 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,867 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,854 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,467 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,535 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,900 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 131,334 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 108,656 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,744 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,881 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 104,412 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 140,279 |
| Bordering Countries by HDI Difference | 0 | - | 4.89 | 52,138 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,762 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,565 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,704 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.86 | 23,797 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,867,299 |
| Landlocked Countries | 0 | - | 4.99 | 425,641 |
| Smallest Countries Bordering Each Other | 0 | - | 4.55 | 93,142 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,473 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,163 |
| Himalayan Countries | 0 | - | 4.93 | 140,167 |
| Andean Countries | 0 | - | 4.94 | 85,391 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,543 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,931 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,120 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,395 |
| Danube Countries | 0 | - | 4.97 | 72,358 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,569 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,818 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,082 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,573 |
| European Landlocked Countries | 0 | - | 4.99 | 147,589 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,271 |
| Countries with the Most Species | 0 | - | 4.99 | 103,549 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,381 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,768 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,876 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,829 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,565 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,993 |
| Countries in the Alps | 0 | - | 4.87 | 118,746 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,578 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,830 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,947 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,009 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,934 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,238 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,376 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,408 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,158 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,855 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,732 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,544 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,770 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,870 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,790 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,596 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 66,401 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,643 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,619 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,105 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,492 |
| Largest Countries By Category | 0 | - | 4.97 | 158,839 |
| Countries by Countries | 0 | - | 4.96 | 63,626 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,393 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,094 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,298 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,642 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,622 |
| Island Countries | 0 | - | 4.99 | 712,506 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,544 |
| Northernmost Countries | 0 | - | 4.99 | 363,918 |
| Countries of South America | 0 | - | 5.00 | 932,488 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,064 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,764 |
| "Land" Countries | 0 | - | 4.98 | 338,343 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,933 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,293 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,355 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,664 |
| Walking Across Borders with Hints #1 | 0 | - | 4.94 | 109,323 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,304 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,441 |
| Random Countries by Borders | 0 | - | 4.99 | 83,074 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,111 |
| Countries with Megacities | 0 | - | 4.99 | 267,035 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,810 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,111 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,129 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,222 |
| Countries by Official Language | 0 | - | 4.95 | 195,965 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,598 |
| Countries in their Native Language | 0 | - | 4.99 | 199,714 |
| Independence from Whom | 0 | - | 4.99 | 213,030 |
| Subdivisions by Country | 0 | - | 4.87 | 50,609 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,415 |
| Megadiverse Countries | 0 | - | 4.96 | 135,270 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,927 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,532 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,639 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,225 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,869 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,101 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,026 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,251 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,502 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,367 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,440 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,139 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,570 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,831 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,322 |
| World Map Quiz | 0 | - | 4.81 | 65,702 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,226 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,065 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,545 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,541 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,418 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,518 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,718 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,685 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,683 |
| Widest Countries East to West | 0 | - | 4.92 | 130,447 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,595 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,243 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,513 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,056 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,959 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,471 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,498 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,047 |
| Countries that End in N | 0 | - | 4.95 | 171,902 |
| Countries with Five Letters | 0 | - | 4.96 | 283,728 |
| Countries with Six Letters | 0 | - | 4.94 | 214,444 |
| Countries with W | 0 | - | 4.96 | 160,912 |
| Countries with Z | 0 | - | 4.98 | 292,416 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,270 |
| Countries That End in U | 0 | - | 4.95 | 121,176 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,081 |
| Countries that End in O | 0 | - | 4.92 | 160,204 |
| Countries that End in R | 0 | - | 4.87 | 119,177 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,928 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,811 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,135 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,815 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,743 |
| Countries That End in Y | 0 | - | 4.91 | 186,083 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,442 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,266 |
| Countries that End in I | 0 | - | 4.94 | 135,309 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,608 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,053 |
| Countries That End in NIA | 0 | - | 4.92 | 110,043 |
| Countries That End in BIA | 0 | - | 4.93 | 149,567 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,525 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,761 |
| Countries That End in RIA | 0 | - | 4.93 | 127,045 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,382 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,572 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,171 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,611 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,161 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,798 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,324 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,534 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,899 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,647 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,406 |
| Countries that End in L | 0 | - | 4.94 | 157,122 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 217,958 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,341 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,491 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,976 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,439 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,403 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,126 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,426 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,247 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,959 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,203 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,237 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,825 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,234 |
