| "Land" Countries | 0 | - | 4.98 | 334,165 |
| Countries with Double Letters | 0 | - | 4.96 | 93,743 |
| Countries that End in N | 0 | - | 4.94 | 157,179 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,110 |
| Countries with Six Letters | 0 | - | 4.93 | 210,763 |
| Countries with W | 0 | - | 4.97 | 158,459 |
| Countries with Z | 0 | - | 4.98 | 288,311 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,806 |
| Countries That End in U | 0 | - | 4.95 | 119,628 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,928 |
| Countries that End in O | 0 | - | 4.92 | 158,676 |
| Countries that End in R | 0 | - | 4.87 | 118,392 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,947 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,472 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,590 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,689 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,242 |
| Countries That End in Y | 0 | - | 4.90 | 185,303 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,662 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,949 |
| Countries that End in I | 0 | - | 4.94 | 134,565 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,535 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,328 |
| Countries That End in NIA | 0 | - | 4.92 | 109,151 |
| Countries That End in BIA | 0 | - | 4.92 | 147,900 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,295 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,665 |
| Countries That End in RIA | 0 | - | 4.93 | 126,217 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,207 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,813 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,717 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,065 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,630 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,049 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,312 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,827 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,724 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,917 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,385 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,037 |
| Countries that End in L | 0 | - | 4.94 | 156,177 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,319 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,028 |
| Landlocked Countries | 0 | - | 4.99 | 415,625 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,080,706 |
| Countries with Four Letters | 0 | - | 4.99 | 419,742 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,415 |
| Himalayan Countries | 0 | - | 4.95 | 136,067 |
| Andean Countries | 0 | - | 4.95 | 83,218 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,536 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,702 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,227 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,870 |
| Danube Countries | 0 | - | 4.97 | 71,286 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,041 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,740 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,921 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,865 |
| European Landlocked Countries | 0 | - | 4.99 | 145,996 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,574 |
| Countries with the Most Species | 0 | - | 4.99 | 95,360 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,700 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,278 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,448 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,082 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,735 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,100 |
| Countries in the Alps | 0 | - | 4.86 | 117,163 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,785 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,649 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,175 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,611 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,414 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,163 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,834 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,913 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,714 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,229 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,284 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,155 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,640 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,902 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,915 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,522 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,815 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,361 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,072 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,425 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,281 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,747 |
| Largest Countries By Category | 0 | - | 4.97 | 157,079 |
| Countries by Countries | 0 | - | 4.96 | 62,467 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,719 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,039 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,387 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,309 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,988 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,732,989 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,204 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,590 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,058 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,923 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,936 |
| Island Countries | 0 | - | 4.99 | 708,437 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,086 |
| Northernmost Countries | 0 | - | 4.99 | 358,842 |
| Countries of South America | 0 | - | 5.00 | 918,252 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,810 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,275 |
| Countries with J | 0 | - | 4.54 | 184,499 |
| Countries by Consonants | 0 | - | 4.42 | 78,331 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,868 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,986 |
| Countries with Megacities | 0 | - | 4.99 | 248,373 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,879 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,397 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,270 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,331 |
| Countries by Official Language | 0 | - | 4.95 | 193,267 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,827 |
| Countries in their Native Language | 0 | - | 4.99 | 197,089 |
| Independence from Whom | 0 | - | 4.99 | 210,228 |
| Subdivisions by Country | 0 | - | 4.86 | 50,155 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,113 |
| Megadiverse Countries | 0 | - | 4.96 | 134,478 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,253 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,029 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,560 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,918 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,917 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,146 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,386 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,311 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,790 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,993 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,532 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,638 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,600 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,812 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,135 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,221 |
| World Map Quiz | 0 | - | 4.81 | 63,860 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,846 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,620 |
| Countries by Founding Story | 0 | - | 4.95 | 76,749 |
| Countries by Road Signs | 0 | - | 4.98 | 53,300 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,842 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,559 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,281 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,426 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,146 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,348 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,535 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,093 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,560 |
| Widest Countries East to West | 0 | - | 4.92 | 129,050 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,295 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,527 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,662 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,886 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,869 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,259 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,839 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,649 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,651 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,485 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,546 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,080 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,684 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 141,939 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,704 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,106 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,961 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,836 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,255 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,472 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,443 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,376 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,484 |
| One Border Countries | 0 | - | 4.98 | 465,877 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 114,982 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,823 |
| Most Similar Country Names | 0 | - | 4.16 | 46,352 |
| Longest Country Name A-Z | 0 | - | 4.33 | 41,879 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,809,344 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,598,706 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,191 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,650 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,195 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,675 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,993 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,550 |
| Countries by National Anthem | 0 | - | 4.93 | 71,085 |
| NATO Countries | 0 | - | 4.98 | 277,445 |
| EU Countries Quiz | 0 | - | 4.99 | 271,064 |
| Recently Independent Countries | 0 | - | 4.98 | 158,244 |
| French-Speaking Countries | 0 | - | 4.85 | 269,369 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,460 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,632 |
