| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,194 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,295 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,455 |
| Landlocked Countries | 0 | - | 4.99 | 423,364 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,694,868 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,455 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,288 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,520 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 80,348 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,527 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,835 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,154 |
| Himalayan Countries | 0 | - | 4.94 | 139,350 |
| Andean Countries | 0 | - | 4.94 | 84,946 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,168 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,329 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,731 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,047 |
| Danube Countries | 0 | - | 4.97 | 72,166 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,244 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,569 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,606 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,115 |
| European Landlocked Countries | 0 | - | 4.99 | 147,323 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,895 |
| Countries with the Most Species | 0 | - | 4.99 | 103,377 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,030 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,661 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,776 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,644 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,402 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,808 |
| Countries in the Alps | 0 | - | 4.87 | 118,424 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,909 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,359 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,782 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,763 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,670 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,069 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,860 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,637 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,268 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,989 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,740 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,611 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,353 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,601 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,675 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,254 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,435 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,984 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,292 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,700 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,522 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,339 |
| Largest Countries By Category | 0 | - | 4.97 | 158,471 |
| Countries by Countries | 0 | - | 4.96 | 63,396 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,923 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,334 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,602 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,116 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,169 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,832 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,788,618 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 43,027 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,834 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,957 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,239 |
| Island Countries | 0 | - | 4.99 | 711,573 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,709 |
| Northernmost Countries | 0 | - | 4.99 | 362,698 |
| Countries of South America | 0 | - | 5.00 | 929,358 |
| Countries of Oceania | 0 | - | 5.00 | 1,059,382 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,881,792 |
| "Land" Countries | 0 | - | 4.98 | 337,736 |
| Countries With the Most Neighbors | 0 | - | 4.46 | 102,472 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,387,326 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,333 |
| Countries with Megacities | 0 | - | 4.99 | 265,568 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,129 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,694 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,391 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,768 |
| Countries by Official Language | 0 | - | 4.95 | 195,538 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,791 |
| Countries in their Native Language | 0 | - | 4.99 | 199,323 |
| Independence from Whom | 0 | - | 4.99 | 212,432 |
| Subdivisions by Country | 0 | - | 4.87 | 50,504 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,982 |
| Megadiverse Countries | 0 | - | 4.96 | 135,121 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,342 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,434 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,319 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,149 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,319 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,674 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,662 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,441 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,726 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,988 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,979 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,035 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,577 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,668 |
| World Map Quiz | 0 | - | 4.81 | 65,296 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,998 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,495 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,316 |
| Countries by Founding Story | 0 | - | 4.95 | 77,489 |
| Countries by Road Signs | 0 | - | 4.98 | 54,159 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,397 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,481 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,176 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,724 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,071 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,190 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,435 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,520 |
| Tallest Countries North to South | 0 | - | 4.83 | 122,061 |
| Widest Countries East to West | 0 | - | 4.92 | 129,825 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,489 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,941 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,406 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,871 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,752 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,012 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,428 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,830 |
| Countries with Double Letters | 0 | - | 4.96 | 96,563 |
| Countries that End in N | 0 | - | 4.95 | 171,467 |
| Countries with Five Letters | 0 | - | 4.96 | 283,043 |
| Countries with Six Letters | 0 | - | 4.94 | 213,908 |
| Countries with W | 0 | - | 4.96 | 160,568 |
| Countries with Z | 0 | - | 4.98 | 291,827 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,934 |
| Countries That End in U | 0 | - | 4.95 | 120,979 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,715 |
| Countries that End in O | 0 | - | 4.92 | 159,633 |
| Countries that End in R | 0 | - | 4.87 | 119,052 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,808 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,387 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,864 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,617 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,522 |
| Countries That End in Y | 0 | - | 4.91 | 185,964 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,122 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,024 |
| Countries that End in I | 0 | - | 4.94 | 135,191 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,297 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,904 |
| Countries That End in NIA | 0 | - | 4.92 | 109,872 |
| Countries That End in BIA | 0 | - | 4.93 | 149,350 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,276 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,563 |
| Countries That End in RIA | 0 | - | 4.93 | 126,912 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,155 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,966 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,895 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,325 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,879 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,658 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,149 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,476 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,663 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,523 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,452 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,150 |
| Countries that End in L | 0 | - | 4.94 | 156,958 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,451 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,300 |
| City to Country Quiz #1 | 0 | - | 4.97 | 156,125 |
| City to Country Quiz #3 | 0 | - | 4.88 | 119,048 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,097 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,009 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,860 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,265 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,008 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,652 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,009 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,155 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,747 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,075 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,450,502 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,515 |
| World Capitals by Proximity | 0 | - | 4.91 | 332,761 |
| One Border Countries | 0 | - | 4.98 | 470,692 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,549 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,840,203 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,357 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,640,086 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,070 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,514 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,359 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,689 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 93,906 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,356 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,847 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,564 |
| Countries by National Anthem | 0 | - | 4.93 | 71,343 |
| NATO Countries | 0 | - | 4.98 | 282,229 |
