| One Border Countries | 0 | - | 4.98 | 468,874 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,604 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,525 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,810 |
| Longest Border by Country #1 | 0 | - | 4.99 | 146,330 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,496 |
| Countries with Two Borders | 0 | - | 4.99 | 149,849 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,385 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 141,063 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,960 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,411 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.92 | 93,635 |
| Countries by Borders #3 | 0 | - | 4.98 | 98,113 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,759 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,755 |
| Longest Border by Country #2 | 0 | - | 4.95 | 121,194 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,655 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,638 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 130,519 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,961 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 113,212 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 90,370 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,915 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,663 |
| Bordering Countries by HDI Difference | 0 | - | 4.88 | 51,952 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 82,219 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,966 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,239 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,445 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,496,419 |
| Landlocked Countries | 0 | - | 4.99 | 420,951 |
| Smallest Countries Bordering Each Other | 0 | - | 4.61 | 92,823 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,770,830 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,966 |
| Himalayan Countries | 0 | - | 4.95 | 138,278 |
| Andean Countries | 0 | - | 4.95 | 84,357 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,581 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,485 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,204 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,619 |
| Danube Countries | 0 | - | 4.97 | 71,890 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,860 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,283 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,079 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,545 |
| European Landlocked Countries | 0 | - | 4.99 | 147,019 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,451 |
| Countries with the Most Species | 0 | - | 4.99 | 103,137 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,595 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,532 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,672 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,467 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,147 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,549 |
| Countries in the Alps | 0 | - | 4.87 | 118,029 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,229 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,818 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,572 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,499 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,370 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,866 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,532 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,389 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,107 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,734 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,582 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,439 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,111 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,378 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,408 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,651 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,207 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,719 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,873 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,419 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,802 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,138 |
| Largest Countries By Category | 0 | - | 4.97 | 158,003 |
| Countries by Countries | 0 | - | 4.96 | 63,073 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,235 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,558 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,668 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,189 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,548 |
| Island Countries | 0 | - | 4.99 | 710,608 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,481 |
| Northernmost Countries | 0 | - | 4.99 | 361,463 |
| Countries of South America | 0 | - | 5.00 | 925,726 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,905 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,447 |
| "Land" Countries | 0 | - | 4.98 | 336,955 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,603 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,930 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,094 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,390 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,992 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 123,075 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,245 |
| Random Countries by Borders | 0 | - | 4.99 | 82,498 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,611 |
| Countries with Megacities | 0 | - | 4.99 | 263,804 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,460 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,320 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,725 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,363 |
| Countries by Official Language | 0 | - | 4.95 | 195,030 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,086 |
| Countries in their Native Language | 0 | - | 4.99 | 198,536 |
| Independence from Whom | 0 | - | 4.99 | 211,836 |
| Subdivisions by Country | 0 | - | 4.86 | 50,383 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,425 |
| Megadiverse Countries | 0 | - | 4.96 | 134,922 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,888 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,285 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,868 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,073 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,976 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,517 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,307 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,590 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,449 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,814 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,127 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,904 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,281 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,436 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,854 |
| World Map Quiz | 0 | - | 4.81 | 64,937 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,874 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,147 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,873 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,909 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,783 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,913 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,211 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,386 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,488 |
| Widest Countries East to West | 0 | - | 4.92 | 129,557 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,424 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,241 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,080 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,677 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,461 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,748 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,331 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,775 |
| Countries with Double Letters | 0 | - | 4.97 | 95,892 |
| Countries that End in N | 0 | - | 4.95 | 170,811 |
| Countries with Five Letters | 0 | - | 4.96 | 281,913 |
| Countries with Six Letters | 0 | - | 4.94 | 213,232 |
| Countries with W | 0 | - | 4.97 | 160,087 |
| Countries with Z | 0 | - | 4.98 | 291,088 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,445 |
| Countries That End in U | 0 | - | 4.95 | 120,715 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,220 |
| Countries that End in O | 0 | - | 4.92 | 159,419 |
| Countries that End in R | 0 | - | 4.87 | 118,886 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,655 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,824 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,506 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,350 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,179 |
| Countries That End in Y | 0 | - | 4.91 | 185,799 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,702 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,708 |
| Countries that End in I | 0 | - | 4.94 | 135,021 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,877 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,744 |
| Countries That End in NIA | 0 | - | 4.92 | 109,690 |
| Countries That End in BIA | 0 | - | 4.93 | 149,075 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,966 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,290 |
| Countries That End in RIA | 0 | - | 4.93 | 126,728 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,882 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,278 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,520 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,924 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,491 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,495 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,904 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,407 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,398 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,347 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,825 |
| Countries that End in L | 0 | - | 4.94 | 156,733 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,099 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,228 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,942 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,878 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,911 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,530 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,491 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,879 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,402 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,164 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,769 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,037 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,661 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,790 |
