| Spanish-Speaking Countries | 0 | - | 4.95 | 375,354 |
| Countries by Official Language | 0 | - | 4.95 | 195,141 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,218 |
| Countries in their Native Language | 0 | - | 4.99 | 198,933 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,982 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,434 |
| Landlocked Countries | 0 | - | 4.99 | 421,428 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,538,286 |
| French-Speaking Countries | 0 | - | 4.85 | 270,747 |
| German-Speaking Countries | 0 | - | 4.91 | 145,676 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,276 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,179 |
| Himalayan Countries | 0 | - | 4.95 | 138,473 |
| Andean Countries | 0 | - | 4.93 | 84,467 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,661 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,633 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,292 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,694 |
| Danube Countries | 0 | - | 4.97 | 71,943 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,932 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,359 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,183 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,646 |
| European Landlocked Countries | 0 | - | 4.99 | 147,068 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,528 |
| Countries with the Most Species | 0 | - | 4.99 | 103,177 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,675 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,551 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,696 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,500 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,179 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,599 |
| Countries in the Alps | 0 | - | 4.87 | 118,117 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,707 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,928 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,605 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,541 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,425 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,902 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,597 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,444 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,141 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,794 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,618 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,482 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,166 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,419 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,460 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,755 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,253 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,419 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,975 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,648 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,935 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,176 |
| Largest Countries By Category | 0 | - | 4.97 | 158,102 |
| Countries by Countries | 0 | - | 4.96 | 63,134 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,606 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,257 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,546 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,933 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,614 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,705 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,711 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,118 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,877 |
| Island Countries | 0 | - | 4.99 | 710,833 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,120 |
| Northernmost Countries | 0 | - | 4.99 | 361,709 |
| Countries of South America | 0 | - | 5.00 | 926,546 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,859 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,875,470 |
| "Land" Countries | 0 | - | 4.98 | 337,161 |
| Top World Languages | 0 | - | 4.92 | 823,503 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,806 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,266 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,748 |
| Countries with Megacities | 0 | - | 4.99 | 264,211 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,600 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,395 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,863 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,460 |
| Independence from Whom | 0 | - | 4.99 | 211,958 |
| Subdivisions by Country | 0 | - | 4.86 | 50,400 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,635 |
| Megadiverse Countries | 0 | - | 4.96 | 134,968 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,320 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,020 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,089 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,042 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,562 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,385 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,996 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,615 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,090 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,568 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,845 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,169 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,931 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,320 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,464 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,016 |
| World Map Quiz | 0 | - | 4.81 | 65,016 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,974 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,295 |
| Countries by Founding Story | 0 | - | 4.95 | 77,317 |
| Countries by Road Signs | 0 | - | 4.98 | 53,957 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,985 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,213 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,068 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,826 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,961 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,253 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,409 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,525 |
| Widest Countries East to West | 0 | - | 4.92 | 129,594 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,436 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,322 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,100 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,728 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,531 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,802 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,351 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,789 |
| Countries with Double Letters | 0 | - | 4.96 | 96,091 |
| Countries that End in N | 0 | - | 4.95 | 170,976 |
| Countries with Five Letters | 0 | - | 4.96 | 282,168 |
| Countries with Six Letters | 0 | - | 4.94 | 213,396 |
| Countries with W | 0 | - | 4.97 | 160,220 |
| Countries with Z | 0 | - | 4.98 | 291,279 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,573 |
| Countries That End in U | 0 | - | 4.95 | 120,778 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,344 |
| Countries that End in O | 0 | - | 4.92 | 159,464 |
| Countries that End in R | 0 | - | 4.87 | 118,929 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,687 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,947 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,610 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,410 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,332 |
| Countries That End in Y | 0 | - | 4.91 | 185,837 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,817 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,776 |
| Countries that End in I | 0 | - | 4.94 | 135,050 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,992 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,773 |
| Countries That End in NIA | 0 | - | 4.92 | 109,723 |
| Countries That End in BIA | 0 | - | 4.93 | 149,132 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,033 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,365 |
| Countries That End in RIA | 0 | - | 4.93 | 126,769 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,952 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,425 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,608 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,005 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,575 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,542 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,959 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,427 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,466 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,385 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,212 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,906 |
| Countries that End in L | 0 | - | 4.94 | 156,774 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,424 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,246 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,980 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,906 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,950 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,635 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,574 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,926 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,466 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,343 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,818 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,068 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,685 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,837 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,167 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,266 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,758 |
| One Border Countries | 0 | - | 4.98 | 469,547 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,970 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,832,643 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,629,246 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,835 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,064 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,045 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,504 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,660 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,172 |
| Capitals in their Native Languages | 0 | - | 4.95 | 133,449 |
| Countries by National Anthem | 0 | - | 4.93 | 71,272 |
| NATO Countries | 0 | - | 4.98 | 281,164 |
| EU Countries Quiz | 0 | - | 4.99 | 275,085 |
| Recently Independent Countries | 0 | - | 4.98 | 159,396 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,874 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,345 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 289,001 |
