| One Border Countries | 0 | - | 4.98 | 464,980 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,804,498 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,707 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,814 |
| Longest Border by Country #1 | 0 | - | 4.99 | 145,445 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,201 |
| Countries with Two Borders | 0 | - | 4.99 | 148,914 |
| Countries by Borders #2 | 0 | - | 4.96 | 135,565 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 140,377 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 130,306 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 114,797 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.91 | 93,217 |
| Countries by Borders #3 | 0 | - | 4.98 | 97,582 |
| Bordering Countries Forming Words #1 | 0 | - | 4.92 | 75,578 |
| Bordering Countries Forming Words #2 | 0 | - | 4.97 | 32,611 |
| Longest Border by Country #2 | 0 | - | 4.95 | 120,684 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,151 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.96 | 95,210 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.97 | 129,509 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 107,088 |
| Populous Countries Bordering Smaller Countries | 0 | - | 4.97 | 112,512 |
| Densest Countries Bordering Each Other | 0 | - | 4.93 | 89,708 |
| Countries with the Shortest Total Borders | 0 | - | 4.94 | 103,194 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,008 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 51,707 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 81,433 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,223 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,418 |
| Least Dense Countries Bordering Each Other | 0 | - | 4.85 | 23,010 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,990,084 |
| Landlocked Countries | 0 | - | 4.99 | 414,463 |
| Smallest Countries Bordering Each Other | 0 | - | 4.63 | 92,376 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,723,750 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,946 |
| Himalayan Countries | 0 | - | 4.95 | 135,653 |
| Andean Countries | 0 | - | 4.94 | 83,003 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,353 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,400 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,048 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,721 |
| Danube Countries | 0 | - | 4.97 | 71,162 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,881 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,625 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,671 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,573 |
| European Landlocked Countries | 0 | - | 4.99 | 145,871 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,342 |
| Countries with the Most Species | 0 | - | 4.99 | 95,294 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,492 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,230 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,399 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,008 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,649 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,015 |
| Countries in the Alps | 0 | - | 4.86 | 116,959 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,666 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,430 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,087 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,499 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,277 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,077 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,678 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,829 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,568 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,134 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,228 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,092 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,520 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,817 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,818 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,257 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,724 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,304 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,886 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,768 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,952 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,677 |
| Largest Countries By Category | 0 | - | 4.97 | 156,892 |
| Countries by Countries | 0 | - | 4.96 | 62,346 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,996 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,844 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,002 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,437 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,258 |
| Island Countries | 0 | - | 4.99 | 707,950 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,613 |
| Northernmost Countries | 0 | - | 4.99 | 358,181 |
| Countries of South America | 0 | - | 5.00 | 916,225 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,356 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,337 |
| "Land" Countries | 0 | - | 4.98 | 333,886 |
| Which Country Does Not Border... | 0 | - | 4.78 | 93,127 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,743 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,730 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 86,811 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,243 |
| Countries Bordering Two or More Oceans | 0 | - | 4.22 | 122,418 |
| Borders of One Border Countries | 0 | - | 4.14 | 85,976 |
| Random Countries by Borders | 0 | - | 4.99 | 81,748 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,658 |
| Countries with Megacities | 0 | - | 4.99 | 247,647 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,508 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,221 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,905 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,150 |
| Countries by Official Language | 0 | - | 4.95 | 192,955 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,386 |
| Countries in their Native Language | 0 | - | 4.99 | 196,810 |
| Independence from Whom | 0 | - | 4.99 | 209,920 |
| Subdivisions by Country | 0 | - | 4.86 | 50,107 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,907 |
| Megadiverse Countries | 0 | - | 4.97 | 133,967 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,971 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,959 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,472 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,880 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,772 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,061 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,196 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,255 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,761 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,750 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,458 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,559 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,543 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,732 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,067 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,834 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,574 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,361 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,089 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,038 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,003 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,186 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,390 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,011 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,437 |
| Widest Countries East to West | 0 | - | 4.92 | 128,940 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,254 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,347 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,607 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,766 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,707 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,139 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 73,383 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,620 |
| Countries with Double Letters | 0 | - | 4.96 | 93,557 |
| Countries that End in N | 0 | - | 4.94 | 157,039 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,864 |
| Countries with Six Letters | 0 | - | 4.93 | 210,539 |
| Countries with W | 0 | - | 4.97 | 158,343 |
| Countries with Z | 0 | - | 4.98 | 288,068 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,658 |
| Countries That End in U | 0 | - | 4.95 | 119,581 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,742 |
| Countries that End in O | 0 | - | 4.92 | 158,613 |
| Countries that End in R | 0 | - | 4.87 | 118,328 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,896 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,270 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,457 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,577 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,122 |
| Countries That End in Y | 0 | - | 4.90 | 185,251 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,504 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,801 |
| Countries that End in I | 0 | - | 4.94 | 134,490 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,337 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,252 |
| Countries That End in NIA | 0 | - | 4.92 | 109,069 |
| Countries That End in BIA | 0 | - | 4.92 | 147,783 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,164 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,578 |
| Countries That End in RIA | 0 | - | 4.93 | 126,144 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,102 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,510 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,603 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,968 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,462 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,974 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,204 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,727 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,599 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,853 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,909 |
| Countries that End in L | 0 | - | 4.94 | 156,098 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,704 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,006 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,568 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,367 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,475 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,655 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,457 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 139,874 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,501 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,857 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,816 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,763 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,212 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,444 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,375 |
