| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,667,791 |
| Countries with the Most Borders | 0 | - | 4.97 | 375,605 |
| Most Populated Countries Bordering the Pacific Ocean | 0 | - | 4.97 | 82,225 |
| Most Populous Countries Bordering Each Other | 0 | - | 4.96 | 110,947 |
| Countries with the Most People Bordering Them | 0 | - | 4.98 | 102,192 |
| Countries with the Shortest Total Borders | 0 | - | 4.93 | 100,050 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 122,275 |
| Bordering Countries by HDI Difference | 0 | - | 4.90 | 50,338 |
| Countries of the World with a Borderless Map | 0 | - | 4.99 | 77,847 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,173 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,813 |
| One Border Countries | 0 | - | 4.98 | 448,396 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 80,117 |
| Bordering Countries by Clue #2 | 0 | - | 4.94 | 74,824 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 105,063 |
| Random Countries by Borders | 0 | - | 4.99 | 78,923 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 82,842 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 259,427 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 89,309 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,921,101 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 109,834 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.96 | 110,376 |
| Countries by Borders #1 | 0 | - | 5.00 | 189,043 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 302,419 |
| Longest Border by Country #1 | 0 | - | 4.99 | 141,909 |
| Largest Countries with No Borders | 0 | - | 4.97 | 212,961 |
| Countries with Two Borders | 0 | - | 4.99 | 134,017 |
| Countries by Borders #2 | 0 | - | 4.96 | 124,859 |
| Landlocked Countries that Border Each Other | 0 | - | 5.00 | 136,940 |
| Big Countries Bordering Small Countries | 0 | - | 4.99 | 126,895 |
| Largest Countries Bordering Each Other | 0 | - | 4.99 | 102,271 |
| Biggest Countries Bordering the Pacific Ocean | 0 | - | 4.93 | 91,397 |
| Countries by Borders #3 | 0 | - | 4.99 | 94,895 |
| Bordering Countries Forming Words #1 | 0 | - | 4.91 | 74,562 |
| Longest Border by Country #2 | 0 | - | 4.96 | 118,351 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 390,458 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 91,724 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,452,911 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,528,917 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 136,817 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 58,935 |
| Five Coldest Countries by Continent | 0 | - | 4.96 | 74,374 |
| Bordering Countries Forming Words #2 | 0 | - | 4.96 | 31,609 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,435 |
| Himalayan Countries | 0 | - | 4.94 | 125,563 |
| Andean Countries | 0 | - | 4.93 | 70,696 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,201 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,731 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,568 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,681 |
| Danube Countries | 0 | - | 4.97 | 61,746 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,122 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,759 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,528 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,164 |
| European Landlocked Countries | 0 | - | 4.99 | 142,155 |
| Partially Recognized Countries | 0 | - | 4.98 | 99,951 |
| Countries with the Most Species | 0 | - | 4.99 | 93,189 |
| Countries 197 to 205 | 0 | - | 4.88 | 64,889 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,102 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,188 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,072 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,596 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,513 |
| Countries in the Alps | 0 | - | 4.86 | 112,088 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,647 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,588 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,086 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 84,564 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,749 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,682 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,211 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,539 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,514 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,566 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,752 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,557 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,862 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,528 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,359 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,062 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,492 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,404 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,670 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,553 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,731 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,741 |
| Largest Countries By Category | 0 | - | 4.97 | 152,579 |
| Countries by Countries | 0 | - | 4.96 | 59,251 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,885 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 363,089 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,854 |
| Island Countries Quiz | 0 | - | 4.99 | 695,531 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,006,625 |
| Northernmost Countries | 0 | - | 4.99 | 345,096 |
| Countries of South America | 0 | - | 5.00 | 875,154 |
| Countries of Oceania | 0 | - | 5.00 | 990,954 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,757,279 |
| Which Country Does Not Border... | 0 | - | 4.78 | 91,057 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 219,548 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,286,826 |
| Five Most Guessed Countries by Continent | 0 | - | 4.96 | 166,059 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 188,623 |
| European Countries with One Border | 0 | - | 4.97 | 176,900 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 173,488 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,678 |
| Countries with Megacities | 0 | - | 4.99 | 222,293 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,567 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,682 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,894 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,078 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 301,871 |
| Countries by Official Language | 0 | - | 4.95 | 186,126 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,721 |
| Countries in their Native Language | 0 | - | 4.99 | 190,459 |
| Independence from Whom | 0 | - | 4.99 | 202,594 |
| Subdivisions by Country | 0 | - | 4.85 | 48,961 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,718 |
| Megadiverse Countries | 0 | - | 4.97 | 131,288 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,070 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,398 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,715 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,523 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,583 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,937 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,264 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,709 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,080 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,641 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,701 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,321 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,507 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,984 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,707 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,208 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,389 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 99,983 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,807 |
| Countries With the Most Languages | 0 | - | 4.89 | 191,993 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 97,631 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 89,619 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 94,815 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,009 |
| Tallest Countries North to South | 0 | - | 4.84 | 116,636 |
| Widest Countries East to West | 0 | - | 4.92 | 125,755 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,434 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 181,586 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,990 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 91,159 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 126,292 |
| Countries with the Most Desert | 0 | - | 4.93 | 124,135 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,292 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,826 |
| Countries with Double Letters | 0 | - | 4.97 | 85,954 |
| Countries that End in N | 0 | - | 4.94 | 149,461 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 249,969 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 203,569 |
| Countries with W | 0 | - | 4.97 | 152,610 |
| Countries with Z | 0 | - | 4.98 | 279,560 |
| Countries with Letters Missing | 0 | - | 4.97 | 179,181 |
| Countries That End in U | 0 | - | 4.95 | 116,206 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 103,188 |
| Countries that End in O | 0 | - | 4.92 | 155,812 |
| Countries that End in R | 0 | - | 4.84 | 100,858 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 152,749 |
| Countries Ending in "IA" | 0 | - | 4.99 | 200,560 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 165,434 |
| Countries by Last Two Letters | 0 | - | 4.88 | 131,612 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 137,499 |
| Countries That End in Y | 0 | - | 4.91 | 182,933 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 191,727 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 147,831 |
| Countries that End in I | 0 | - | 4.92 | 118,140 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 176,676 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,120 |
| Countries That End in NIA | 0 | - | 4.92 | 106,754 |
| Countries That End in BIA | 0 | - | 4.92 | 144,749 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 162,455 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 115,813 |
| Countries That End in RIA | 0 | - | 4.92 | 122,533 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,093 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 218,119 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 128,717 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 120,678 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 86,566 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,022 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 49,606 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 99,254 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 47,038 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 49,197 |
| Countries that End in L | 0 | - | 4.94 | 153,034 |
| "Land" Countries | 0 | - | 4.98 | 301,319 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 199,045 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,264 |
| City to Country Quiz #1 | 0 | - | 4.96 | 151,449 |
| City to Country Quiz #3 | 0 | - | 4.87 | 105,510 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,230 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 221,848 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 194,393 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,288 |
