| Spanish-Speaking Countries | 0 | - | 4.95 | 377,000 |
| Countries by Official Language | 0 | - | 4.95 | 196,184 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,902 |
| Countries in their Native Language | 0 | - | 4.99 | 199,933 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,114 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,751 |
| Landlocked Countries | 0 | - | 4.99 | 427,115 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,957,474 |
| French-Speaking Countries | 0 | - | 4.85 | 271,858 |
| German-Speaking Countries | 0 | - | 4.92 | 146,084 |
| Spanish to English Country Names | 0 | - | 4.86 | 34,005 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,858 |
| Himalayan Countries | 0 | - | 4.93 | 140,763 |
| Andean Countries | 0 | - | 4.94 | 85,767 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,891 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,454 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,445 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,670 |
| Danube Countries | 0 | - | 4.97 | 72,527 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,773 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,960 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,409 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,883 |
| European Landlocked Countries | 0 | - | 4.99 | 147,721 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,516 |
| Countries with the Most Species | 0 | - | 4.99 | 103,636 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,611 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,807 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,948 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,910 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,667 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,119 |
| Countries in the Alps | 0 | - | 4.87 | 118,944 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,951 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,091 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,049 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,154 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,108 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,373 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,570 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,981 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,505 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,301 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,947 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,821 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,661 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,910 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,012 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,115 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,718 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,335 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,824 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,228 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,454 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,604 |
| Largest Countries By Category | 0 | - | 4.97 | 159,061 |
| Countries by Countries | 0 | - | 4.97 | 63,793 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,415 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,443 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,702 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,361 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,537 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,211 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,811,357 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,986 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,464 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,266 |
| Island Countries | 0 | - | 4.99 | 712,946 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,985 |
| Northernmost Countries | 0 | - | 4.99 | 364,523 |
| Countries of South America | 0 | - | 5.00 | 934,053 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,219 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,892,528 |
| "Land" Countries | 0 | - | 4.98 | 338,931 |
| Top World Languages | 0 | - | 4.92 | 831,064 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 128,465 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,637 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,462 |
| Countries with Megacities | 0 | - | 4.99 | 267,765 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,112 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,315 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,443 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,420 |
| Independence from Whom | 0 | - | 4.99 | 213,368 |
| Subdivisions by Country | 0 | - | 4.87 | 50,662 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,632 |
| Megadiverse Countries | 0 | - | 4.96 | 148,605 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,570 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,795 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,253 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,447 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,915 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,264 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,619 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,156 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,284 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,737 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,473 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,497 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,212 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,628 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,957 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,688 |
| World Map Quiz | 0 | - | 4.81 | 65,912 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,814 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,791 |
| Countries by Founding Story | 0 | - | 4.95 | 77,899 |
| Countries by Road Signs | 0 | - | 4.98 | 54,437 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,480 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,217 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,687 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,879 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,535 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,646 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,838 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,757 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,921 |
| Widest Countries East to West | 0 | - | 4.92 | 130,830 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,626 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,381 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,554 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,147 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,090 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,596 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,530 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,920 |
| Countries with Double Letters | 0 | - | 4.96 | 97,576 |
| Countries that End in N | 0 | - | 4.95 | 172,590 |
| Countries with Five Letters | 0 | - | 4.96 | 284,575 |
| Countries with Six Letters | 0 | - | 4.94 | 214,906 |
| Countries with W | 0 | - | 4.96 | 161,279 |
| Countries with Z | 0 | - | 4.98 | 292,953 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,642 |
| Countries That End in U | 0 | - | 4.95 | 121,370 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,393 |
| Countries that End in O | 0 | - | 4.92 | 160,356 |
| Countries that End in R | 0 | - | 4.87 | 119,271 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,052 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,116 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 185,003 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,158 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,673 |
| Countries That End in Y | 0 | - | 4.91 | 186,163 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,193 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,402 |
| Countries that End in I | 0 | - | 4.94 | 135,412 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,208 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,138 |
| Countries That End in NIA | 0 | - | 4.92 | 110,149 |
| Countries That End in BIA | 0 | - | 4.93 | 149,724 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,915 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,888 |
| Countries That End in RIA | 0 | - | 4.93 | 127,137 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,529 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,900 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,364 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,827 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,379 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,911 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,440 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,598 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,037 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,727 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,889 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,582 |
| Countries that End in L | 0 | - | 4.94 | 157,235 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,521 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,374 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,876 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,150 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,533 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,628 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,288 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,515 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,400 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,171 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,311 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,292 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,968 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,871 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,347 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,578 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,804 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,907 |
| One Border Countries | 0 | - | 4.98 | 472,496 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 58,295 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,852,529 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,658,804 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,445 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,494 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,794 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,988 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.91 | 94,349 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,708 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,975 |
| Countries by National Anthem | 0 | - | 4.92 | 71,431 |
| NATO Countries | 0 | - | 4.98 | 283,921 |
| EU Countries Quiz | 0 | - | 4.99 | 278,808 |
| Recently Independent Countries | 0 | - | 4.98 | 160,495 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,234 |
