| Countries by Three Words #2 | 0 | - | 4.97 | 202,633 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,519 |
| European Countries by Clue | 0 | - | 4.92 | 183,684 |
| Countries by a Single Clue #5 | 0 | - | 4.91 | 101,073 |
| Countries with a Population Under 1 Million by Clue | 0 | - | 4.99 | 92,916 |
| The Only American Country ... | 0 | - | 4.92 | 121,651 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,162 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 83,082 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,384 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,982 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 87,609 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,483,218 |
| Landlocked Countries | 0 | - | 4.99 | 420,812 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,365 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,972 |
| Countries by Three Words #3 | 0 | - | 4.80 | 128,711 |
| Countries by Three Words #4 | 0 | - | 4.45 | 100,813 |
| Countries by a Single Clue #1 | 0 | - | 4.75 | 100,734 |
| Countries by a Single Clue #2 | 0 | - | 4.48 | 95,053 |
| Countries by a Single Clue #3 | 0 | - | 4.63 | 86,816 |
| Countries by a Single Clue #4 | 0 | - | 4.49 | 76,971 |
| Countries by a Single Clue #6 | 0 | - | 4.49 | 86,986 |
| Countries by a Single Clue #8 | 0 | - | 4.44 | 94,969 |
| Countries by a Single Clue #10 | 0 | - | 4.55 | 67,852 |
| Countries by a Single Clue #11 | 0 | - | 4.61 | 76,538 |
| Countries by a Single Clue #12 | 0 | - | 4.48 | 78,992 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,632 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,886 |
| Himalayan Countries | 0 | - | 4.95 | 138,207 |
| Andean Countries | 0 | - | 4.95 | 84,328 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,552 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,435 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,179 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,604 |
| Danube Countries | 0 | - | 4.97 | 71,864 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,838 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,267 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,036 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,499 |
| European Landlocked Countries | 0 | - | 4.99 | 147,005 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,417 |
| Countries with the Most Species | 0 | - | 4.99 | 103,125 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,568 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,523 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,459 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,136 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,529 |
| Countries in the Alps | 0 | - | 4.87 | 118,005 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,982 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,786 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,561 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,476 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,348 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,850 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,500 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,365 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,097 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,723 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,574 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,432 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,093 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,369 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,392 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,608 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,193 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,715 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,860 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,340 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,753 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,977 |
| Countries by Countries | 0 | - | 4.96 | 63,051 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,501 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,228 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,522 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,838 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,542 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,523 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,136 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,441 |
| Island Countries | 0 | - | 4.99 | 710,551 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,267 |
| Northernmost Countries | 0 | - | 4.99 | 361,374 |
| Countries of South America | 0 | - | 5.00 | 925,478 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,564 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,840 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,501 |
| "Land" Countries | 0 | - | 4.98 | 336,841 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,498 |
| Countries by a Single Clue #7 | 0 | - | 4.37 | 70,366 |
| Countries by a Single Clue #9 | 0 | - | 4.37 | 73,157 |
| Countries by a Single Word | 0 | - | 4.69 | 28,821 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,568 |
| Countries with Megacities | 0 | - | 4.99 | 263,663 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,403 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,298 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,678 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,336 |
| Countries by Official Language | 0 | - | 4.95 | 194,998 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,031 |
| Countries in their Native Language | 0 | - | 4.99 | 198,506 |
| Independence from Whom | 0 | - | 4.99 | 211,784 |
| Subdivisions by Country | 0 | - | 4.86 | 50,378 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,113 |
| Megadiverse Countries | 0 | - | 4.96 | 134,908 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,856 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,280 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,860 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,067 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,953 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,502 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,269 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,954 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,582 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,047 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,405 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,803 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,117 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,891 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,261 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,427 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,798 |
| World Map Quiz | 0 | - | 4.81 | 64,913 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,551 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,223 |
| Countries by Founding Story | 0 | - | 4.95 | 77,248 |
| Countries by Road Signs | 0 | - | 4.98 | 53,860 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,841 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,129 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,851 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,852 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,757 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,892 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,196 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,370 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,468 |
| Widest Countries East to West | 0 | - | 4.92 | 129,536 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,218 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,074 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,658 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,443 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,726 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,325 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,772 |
| Countries with Double Letters | 0 | - | 4.97 | 95,794 |
| Countries that End in N | 0 | - | 4.95 | 170,738 |
| Countries with Five Letters | 0 | - | 4.96 | 281,804 |
| Countries with Six Letters | 0 | - | 4.94 | 213,152 |
| Countries with W | 0 | - | 4.97 | 160,040 |
| Countries with Z | 0 | - | 4.98 | 290,996 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,380 |
| Countries That End in U | 0 | - | 4.95 | 120,677 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,173 |
| Countries that End in O | 0 | - | 4.92 | 159,396 |
| Countries that End in R | 0 | - | 4.87 | 118,867 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,636 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,775 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,439 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,296 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,960 |
| Countries That End in Y | 0 | - | 4.91 | 185,787 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,635 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,680 |
| Countries that End in I | 0 | - | 4.94 | 134,997 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,815 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,720 |
| Countries That End in NIA | 0 | - | 4.92 | 109,665 |
| Countries That End in BIA | 0 | - | 4.93 | 149,048 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,936 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,268 |
| Countries That End in RIA | 0 | - | 4.93 | 126,700 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,841 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,229 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,485 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,882 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,442 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,474 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,873 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,393 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,369 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,329 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,094 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,801 |
| Countries that End in L | 0 | - | 4.94 | 156,709 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,999 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,224 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,933 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,856 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,900 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,493 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,457 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,848 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,387 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,941 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,751 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,033 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,653 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,779 |
