| One Border Countries | 0 | - | 4.98 | 466,445 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,813,926 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,065 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,512 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,702 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,718 |
| Countries with Two Borders | 0 | - | 4.99 | 149,441 |
| Countries by Borders #2 | 0 | - | 4.96 | 136,017 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,680 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,549 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 115,008 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,377 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,804 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,655 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,669 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,842 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,084 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 95,342 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,872 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,384 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,735 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,915 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,455 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,301 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,778 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,678 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,553 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,708 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.84 | 23,174 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,170,593 |
| Landlocked Countries | 0 | - | 4.99 | 416,742 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,157 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,977 |
| Himalayan Countries | 0 | - | 4.95 | 136,536 |
| Andean Countries | 0 | - | 4.95 | 83,507 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,772 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,030 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,437 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,039 |
| Danube Countries | 0 | - | 4.97 | 71,440 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,225 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,854 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,170 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,153 |
| European Landlocked Countries | 0 | - | 4.99 | 146,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,784 |
| Countries with the Most Species | 0 | - | 4.99 | 101,796 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,910 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,336 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,516 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,165 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,813 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,195 |
| Countries in the Alps | 0 | - | 4.86 | 117,342 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,926 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,260 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,750 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,833 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,260 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,997 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,999 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,811 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,335 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,206 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,733 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,007 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,014 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,734 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,902 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,434 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,258 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,055 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,592 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,838 |
| Largest Countries By Category | 0 | - | 4.97 | 157,276 |
| Countries by Countries | 0 | - | 4.96 | 62,597 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,082 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,092 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,935 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,860 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,848 |
| Island Countries | 0 | - | 4.99 | 708,852 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,450 |
| Northernmost Countries | 0 | - | 4.99 | 359,416 |
| Countries of South America | 0 | - | 5.00 | 919,799 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,901 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,024 |
| "Land" Countries | 0 | - | 4.98 | 334,640 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,288 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,655 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,874 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,043 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,426 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,527 |
| Borders of One Border Countries | 0 | - | 4.14 | 86,068 |
| Random Countries by Borders | 0 | - | 4.99 | 81,970 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,311 |
| Countries with Megacities | 0 | - | 4.99 | 249,019 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,159 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,563 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,507 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,528 |
| Countries by Official Language | 0 | - | 4.95 | 194,029 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,631 |
| Countries in their Native Language | 0 | - | 4.99 | 197,649 |
| Independence from Whom | 0 | - | 4.99 | 210,828 |
| Subdivisions by Country | 0 | - | 4.86 | 50,204 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,347 |
| Megadiverse Countries | 0 | - | 4.96 | 134,547 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,849 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,079 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,453 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,227 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,609 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,376 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,213 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,582 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,689 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,648 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,863 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,205 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,594 |
| World Map Quiz | 0 | - | 4.81 | 64,105 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,071 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,676 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,404 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,726 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,275 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,472 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,634 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,151 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,645 |
| Widest Countries East to West | 0 | - | 4.92 | 129,143 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,662 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,925 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,960 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,986 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,369 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,105 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,159 |
| Countries that End in N | 0 | - | 4.95 | 166,198 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,603 |
| Countries with Six Letters | 0 | - | 4.93 | 211,155 |
| Countries with W | 0 | - | 4.97 | 158,828 |
| Countries with Z | 0 | - | 4.98 | 288,796 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,049 |
| Countries That End in U | 0 | - | 4.95 | 119,927 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,173 |
| Countries that End in O | 0 | - | 4.92 | 158,871 |
| Countries that End in R | 0 | - | 4.87 | 118,513 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,294 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,778 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,753 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,815 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,387 |
| Countries That End in Y | 0 | - | 4.90 | 185,433 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,846 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,097 |
| Countries that End in I | 0 | - | 4.94 | 134,674 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,700 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,415 |
| Countries That End in NIA | 0 | - | 4.92 | 109,297 |
| Countries That End in BIA | 0 | - | 4.93 | 148,571 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,431 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,774 |
| Countries That End in RIA | 0 | - | 4.93 | 126,349 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,338 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,098 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,873 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,208 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,792 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,146 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,440 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,947 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,845 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,001 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,213 |
| Countries that End in L | 0 | - | 4.94 | 156,295 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,913 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,070 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,715 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,567 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,621 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,335 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,813 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,334 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,826 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,261 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,053 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,871 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,297 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,524 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,522 |
