| Spanish-Speaking Countries | 0 | - | 4.95 | 372,367 |
| Countries by Official Language | 0 | - | 4.95 | 192,917 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,329 |
| Countries in their Native Language | 0 | - | 4.99 | 196,769 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,938 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 24,690 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,973,757 |
| French-Speaking Countries | 0 | - | 4.85 | 269,002 |
| German-Speaking Countries | 0 | - | 4.89 | 123,546 |
| Spanish to English Country Names | 0 | - | 4.85 | 32,156 |
| Landlocked Countries | 0 | - | 4.99 | 414,290 |
| English Speaking Countries | 0 | - | 4.64 | 356,157 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,318 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 124,301 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 712,406 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,863 |
| Himalayan Countries | 0 | - | 4.95 | 135,594 |
| Andean Countries | 0 | - | 4.94 | 82,951 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,314 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,359 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,017 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,687 |
| Danube Countries | 0 | - | 4.97 | 71,140 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,845 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,606 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,620 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,533 |
| European Landlocked Countries | 0 | - | 4.99 | 145,838 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,305 |
| Countries with the Most Species | 0 | - | 4.99 | 95,284 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,450 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,223 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,391 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,992 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,633 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,004 |
| Countries in the Alps | 0 | - | 4.86 | 116,933 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,641 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,385 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,070 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,477 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,253 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,062 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,664 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,820 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,533 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,120 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,218 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,082 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,507 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,803 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,796 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,203 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,713 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,290 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,865 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,638 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,889 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,648 |
| Largest Countries By Category | 0 | - | 4.97 | 156,869 |
| Countries by Countries | 0 | - | 4.96 | 62,326 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,513 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,986 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,350 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,832 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,811 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,184 |
| Island Countries | 0 | - | 4.99 | 707,872 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,362 |
| Northernmost Countries | 0 | - | 4.99 | 358,077 |
| Countries of South America | 0 | - | 5.00 | 915,946 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,979 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,660 |
| "Land" Countries | 0 | - | 4.98 | 333,826 |
| Top World Languages | 0 | - | 4.92 | 813,986 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,194 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,314 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,601 |
| Countries with Megacities | 0 | - | 4.99 | 247,514 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,438 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,187 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,857 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,116 |
| Independence from Whom | 0 | - | 4.99 | 209,866 |
| Subdivisions by Country | 0 | - | 4.86 | 50,099 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,885 |
| Megadiverse Countries | 0 | - | 4.97 | 133,960 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,951 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,464 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,875 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,745 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,046 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,166 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,212 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,244 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,759 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,724 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,453 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,542 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,534 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,728 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,055 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,773 |
| World Map Quiz | 0 | - | 4.81 | 63,633 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,073 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,402 |
| Countries by Founding Story | 0 | - | 4.95 | 76,609 |
| Countries by Road Signs | 0 | - | 4.98 | 53,176 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,506 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,292 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,037 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,955 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,947 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,135 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,355 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,985 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,393 |
| Widest Countries East to West | 0 | - | 4.92 | 128,735 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,235 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,314 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,600 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,744 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,693 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,117 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 70,738 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,604 |
| Countries with Double Letters | 0 | - | 4.96 | 93,508 |
| Countries that End in N | 0 | - | 4.94 | 156,996 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,817 |
| Countries with Six Letters | 0 | - | 4.93 | 210,495 |
| Countries with W | 0 | - | 4.97 | 158,312 |
| Countries with Z | 0 | - | 4.98 | 288,027 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,631 |
| Countries That End in U | 0 | - | 4.95 | 119,555 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,704 |
| Countries that End in O | 0 | - | 4.92 | 158,595 |
| Countries that End in R | 0 | - | 4.87 | 118,311 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,881 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,221 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,420 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,555 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,101 |
| Countries That End in Y | 0 | - | 4.90 | 185,239 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,480 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,777 |
| Countries that End in I | 0 | - | 4.94 | 134,477 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,306 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,238 |
| Countries That End in NIA | 0 | - | 4.92 | 109,057 |
| Countries That End in BIA | 0 | - | 4.92 | 147,768 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,146 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,554 |
| Countries That End in RIA | 0 | - | 4.93 | 126,130 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,082 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,372 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,576 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,949 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,439 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,963 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,188 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,710 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,574 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,846 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,222 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,886 |
| Countries that End in L | 0 | - | 4.94 | 155,879 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,604 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,001 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,559 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,352 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,466 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,573 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,397 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 138,758 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,463 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,791 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,778 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,744 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,192 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,436 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,358 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,613 |
| Places in their Native Language #2 | 0 | - | 4.83 | 123,036 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,196 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,924 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,803,888 |
| One Border Countries | 0 | - | 4.98 | 464,879 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,591,300 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,499 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,012 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,261 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,016 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 111,557 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 92,798 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,395 |
| Capitals in their Native Languages | 0 | - | 4.95 | 132,737 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,864 |
| Countries by National Anthem | 0 | - | 4.93 | 71,046 |
| NATO Countries | 0 | - | 4.98 | 276,292 |
| EU Countries Quiz | 0 | - | 4.99 | 270,307 |
