| "Land" Countries | 0 | - | 4.98 | 334,261 |
| Countries with Double Letters | 0 | - | 4.96 | 93,810 |
| Countries that End in N | 0 | - | 4.94 | 157,241 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,198 |
| Countries with Six Letters | 0 | - | 4.93 | 210,837 |
| Countries with W | 0 | - | 4.97 | 158,498 |
| Countries with Z | 0 | - | 4.98 | 288,391 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,850 |
| Countries That End in U | 0 | - | 4.95 | 119,662 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,991 |
| Countries that End in O | 0 | - | 4.92 | 158,692 |
| Countries that End in R | 0 | - | 4.87 | 118,411 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,964 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,549 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,623 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,714 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,276 |
| Countries That End in Y | 0 | - | 4.90 | 185,316 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,722 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,995 |
| Countries that End in I | 0 | - | 4.94 | 134,590 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,581 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,352 |
| Countries That End in NIA | 0 | - | 4.92 | 109,216 |
| Countries That End in BIA | 0 | - | 4.93 | 148,450 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,329 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,700 |
| Countries That End in RIA | 0 | - | 4.93 | 126,255 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,237 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,905 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,759 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,121 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,662 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,069 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,348 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,865 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,754 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,938 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,425 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,089 |
| Countries that End in L | 0 | - | 4.94 | 156,206 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,518 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,036 |
| Landlocked Countries | 0 | - | 4.99 | 415,917 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,107,480 |
| Countries with Four Letters | 0 | - | 4.99 | 419,925 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,557 |
| Himalayan Countries | 0 | - | 4.95 | 136,190 |
| Andean Countries | 0 | - | 4.95 | 83,288 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,584 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,784 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,281 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,902 |
| Danube Countries | 0 | - | 4.97 | 71,322 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,089 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,777 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,993 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,952 |
| European Landlocked Countries | 0 | - | 4.99 | 146,032 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,644 |
| Countries with the Most Species | 0 | - | 4.99 | 95,503 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,779 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,292 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,467 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,107 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,752 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,126 |
| Countries in the Alps | 0 | - | 4.86 | 117,228 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,827 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,728 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,202 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,653 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,463 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,194 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,889 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,943 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,740 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,274 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,313 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,175 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,666 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,930 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,939 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,587 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,840 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,378 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,114 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,615 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,397 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,775 |
| Largest Countries By Category | 0 | - | 4.97 | 157,154 |
| Countries by Countries | 0 | - | 4.96 | 62,515 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,769 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,058 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,394 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,349 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,025 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,735,407 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 139,231 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 214,694 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,319 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,489 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,152 |
| Island Countries | 0 | - | 4.99 | 708,569 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,507 |
| Northernmost Countries | 0 | - | 4.99 | 359,022 |
| Countries of South America | 0 | - | 5.00 | 918,694 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,484 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,320 |
| Countries with J | 0 | - | 4.54 | 184,534 |
| Countries by Consonants | 0 | - | 4.42 | 78,349 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,682 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,087 |
| Countries with Megacities | 0 | - | 4.99 | 248,578 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,967 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,450 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,340 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,395 |
| Countries by Official Language | 0 | - | 4.95 | 193,753 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,244 |
| Countries in their Native Language | 0 | - | 4.99 | 197,414 |
| Independence from Whom | 0 | - | 4.99 | 210,380 |
| Subdivisions by Country | 0 | - | 4.86 | 50,167 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,203 |
| Megadiverse Countries | 0 | - | 4.96 | 134,496 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,620 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,052 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,583 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,931 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,967 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,172 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,462 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,501 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,328 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,795 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,059 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,548 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,649 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,620 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,824 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,160 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,320 |
| World Map Quiz | 0 | - | 4.81 | 63,925 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,000 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,645 |
| Countries by Founding Story | 0 | - | 4.95 | 76,803 |
| Countries by Road Signs | 0 | - | 4.98 | 53,335 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,922 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,597 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,313 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,516 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,184 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,379 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,565 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,107 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,585 |
| Widest Countries East to West | 0 | - | 4.92 | 129,087 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,304 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,567 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,678 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,912 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,911 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,294 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,956 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,655 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,671 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,505 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,568 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,157 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,724 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,100 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,743 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,162 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,991 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,849 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,269 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,486 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,469 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,908 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,593 |
| One Border Countries | 0 | - | 4.98 | 466,072 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.77 | 115,117 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,970 |
| Most Similar Country Names | 0 | - | 4.16 | 46,362 |
| Longest Country Name A-Z | 0 | - | 4.33 | 41,894 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,810,736 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,600,551 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,221 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,742 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,239 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,029 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,029 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,576 |
| Countries by National Anthem | 0 | - | 4.92 | 71,096 |
| NATO Countries | 0 | - | 4.98 | 277,637 |
| EU Countries Quiz | 0 | - | 4.99 | 271,242 |
| Recently Independent Countries | 0 | - | 4.98 | 158,291 |
| French-Speaking Countries | 0 | - | 4.85 | 269,574 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,469 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,727 |
