| Spanish-Speaking Countries | 0 | - | 4.95 | 374,945 |
| Countries by Official Language | 0 | - | 4.95 | 194,867 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,851 |
| Countries in their Native Language | 0 | - | 4.99 | 198,409 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,744 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,679 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,700 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,507 |
| French-Speaking Countries | 0 | - | 4.85 | 270,444 |
| German-Speaking Countries | 0 | - | 4.92 | 145,524 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 112,919 |
| Five Countries With the Most Tourists by Continent | 0 | - | 4.95 | 121,244 |
| Spanish to English Country Names | 0 | - | 4.86 | 33,044 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,431,051 |
| Landlocked Countries | 0 | - | 4.99 | 420,113 |
| English Speaking Countries | 0 | - | 4.64 | 357,282 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,765,140 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,522 |
| Himalayan Countries | 0 | - | 4.95 | 137,937 |
| Andean Countries | 0 | - | 4.95 | 84,190 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,404 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,056 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,052 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,499 |
| Danube Countries | 0 | - | 4.97 | 71,783 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,724 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,176 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,891 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,055 |
| European Landlocked Countries | 0 | - | 4.99 | 146,922 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,313 |
| Countries with the Most Species | 0 | - | 4.99 | 103,054 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,471 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,475 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,642 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,410 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,093 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,481 |
| Countries in the Alps | 0 | - | 4.87 | 117,908 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,290 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,628 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,518 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,410 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,255 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,808 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,425 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,300 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,052 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,670 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,550 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,392 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,025 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,322 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,327 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,455 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,144 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,656 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,738 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,982 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,557 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,073 |
| Largest Countries By Category | 0 | - | 4.97 | 157,856 |
| Countries by Countries | 0 | - | 4.97 | 62,966 |
| Five Least Guessed Countries by Continent | 0 | - | 4.97 | 98,318 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,410 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,197 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,499 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,466 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 144,086 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,934 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,574 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.95 | 124,638 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,993 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,031 |
| Island Countries | 0 | - | 4.99 | 710,241 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,445 |
| Northernmost Countries | 0 | - | 4.99 | 361,064 |
| Countries of South America | 0 | - | 5.00 | 924,595 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,452 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,678 |
| "Land" Countries | 0 | - | 4.98 | 336,109 |
| Top World Languages | 0 | - | 4.92 | 821,815 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.91 | 13,074 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.75 | 127,727 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,690 |
| Five Most Guessed Countries by Continent | 0 | - | 4.97 | 172,638 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,141 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,379 |
| Countries with Megacities | 0 | - | 4.99 | 263,008 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,209 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,187 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,507 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,226 |
| Independence from Whom | 0 | - | 4.99 | 211,630 |
| Subdivisions by Country | 0 | - | 4.86 | 50,342 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,924 |
| Megadiverse Countries | 0 | - | 4.96 | 134,852 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,238 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,824 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,054 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,863 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,461 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,160 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,916 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,548 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,031 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,283 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,782 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,070 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,849 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,232 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,403 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,563 |
| World Map Quiz | 0 | - | 4.81 | 64,803 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,224 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,163 |
| Countries by Founding Story | 0 | - | 4.95 | 77,179 |
| Countries by Road Signs | 0 | - | 4.98 | 53,774 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,730 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,061 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,786 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,683 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,663 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,800 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,940 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,337 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,404 |
| Widest Countries East to West | 0 | - | 4.92 | 129,468 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,410 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,122 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,047 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,612 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,377 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,674 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,294 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,754 |
| Countries with Double Letters | 0 | - | 4.97 | 95,330 |
| Countries that End in N | 0 | - | 4.95 | 170,363 |
| Countries with Five Letters | 0 | - | 4.96 | 281,214 |
| Countries with Six Letters | 0 | - | 4.94 | 212,773 |
| Countries with W | 0 | - | 4.97 | 159,682 |
| Countries with Z | 0 | - | 4.98 | 290,580 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,955 |
| Countries That End in U | 0 | - | 4.95 | 120,505 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,967 |
| Countries that End in O | 0 | - | 4.92 | 159,276 |
| Countries that End in R | 0 | - | 4.87 | 118,797 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,564 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,570 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,301 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,202 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,806 |
| Countries That End in Y | 0 | - | 4.91 | 185,705 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,492 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,580 |
| Countries that End in I | 0 | - | 4.94 | 134,935 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,691 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,657 |
| Countries That End in NIA | 0 | - | 4.92 | 109,604 |
| Countries That End in BIA | 0 | - | 4.93 | 148,962 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,864 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,186 |
| Countries That End in RIA | 0 | - | 4.93 | 126,620 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,758 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,028 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,385 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,777 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,312 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,401 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,777 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,353 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,267 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,273 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,970 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,690 |
| Countries that End in L | 0 | - | 4.94 | 156,635 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,651 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,187 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,904 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,809 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,861 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,096 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,358 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,772 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,285 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,790 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,681 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,007 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,635 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,748 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,850 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,172 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,200 |
| One Border Countries | 0 | - | 4.98 | 468,422 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,470 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,827,479 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,621,292 |
| Countries With the Most Italian Speakers | 0 | - | 4.49 | 57,888 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,853 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,370 |
