| Countries with Double Letters | 0 | - | 4.96 | 68,289 |
| Countries that End in N | 0 | - | 4.94 | 132,635 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,655 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,969 |
| Countries with W | 0 | - | 4.96 | 122,666 |
| Countries with Z | 0 | - | 4.98 | 244,348 |
| Countries with Letters Missing | 0 | - | 4.97 | 163,419 |
| Countries That End in U | 0 | - | 4.95 | 107,534 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,428 |
| Countries that End in O | 0 | - | 4.92 | 146,905 |
| Countries that End in R | 0 | - | 4.85 | 96,458 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,217 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,285 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,732 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,200 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,257 |
| Countries That End in Y | 0 | - | 4.90 | 161,612 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,950 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,725 |
| Countries that End in I | 0 | - | 4.92 | 114,488 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,508 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,253 |
| Countries That End in NIA | 0 | - | 4.93 | 100,822 |
| Countries That End in BIA | 0 | - | 4.91 | 126,053 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,225 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,719 |
| Countries That End in RIA | 0 | - | 4.90 | 100,939 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,416 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,655 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,638 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,529 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,341 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,690 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,807 |
| Countries with the Word "And" | 0 | - | 4.98 | 83,410 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,690 |
| Countries that End in L | 0 | - | 4.95 | 134,256 |
| "Land" Countries | 0 | - | 4.98 | 289,155 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,789 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,170 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,795 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,409 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,896,438 |
| Countries with Four Letters | 0 | - | 4.99 | 375,479 |
| Members of the Arab League | 0 | - | 4.85 | 61,764 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,813 |
| Himalayan Countries | 0 | - | 4.94 | 104,683 |
| Andean Countries | 0 | - | 4.91 | 58,036 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,972 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,286 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,630 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,012 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,259 |
| Danube Countries | 0 | - | 4.97 | 56,616 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,654 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,816 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,133 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,311 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,462 |
| European Landlocked Countries | 0 | - | 4.99 | 115,476 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,288 |
| Countries with the Most Species | 0 | - | 4.99 | 89,512 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,311 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,661 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,990 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,223 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,391 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,667 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,097 |
| Countries in the Alps | 0 | - | 4.84 | 102,571 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,252 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,977 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,541 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,193 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,896 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,502 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,577 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,114 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,292 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,610 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,382 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,561 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,643 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,431 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,912 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,420 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,901 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,298 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,343 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,923 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,746 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,250 |
| Largest Countries By Category | 0 | - | 4.96 | 144,797 |
| Countries by Countries | 0 | - | 4.96 | 54,594 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,067,966 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,322 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,664 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,128 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,508 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 180,717 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,941 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,227 |
| Island Countries Quiz | 0 | - | 4.99 | 660,205 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,477 |
| Northernmost Countries | 0 | - | 4.99 | 326,984 |
| Countries of South America | 0 | - | 5.00 | 792,571 |
| Countries of Oceania | 0 | - | 5.00 | 892,801 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,148,984 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,571,089 |
| Countries with J | 0 | - | 4.56 | 171,796 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 68,088 |
| Countries by Consonants | 0 | - | 4.44 | 72,900 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,750 |
| Countries with Megacities | 0 | - | 4.99 | 197,016 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,360 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,841 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,229 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,708 |
| Countries by Official Language | 0 | - | 4.96 | 171,462 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,078 |
| Countries in their Native Language | 0 | - | 4.98 | 178,219 |
| Independence from Whom | 0 | - | 4.99 | 185,445 |
| Subdivisions by Country | 0 | - | 4.82 | 46,420 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,366 |
| Megadiverse Countries | 0 | - | 4.96 | 125,274 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,300 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,637 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,364 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,521 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,105 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,821 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,075 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,011 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,329 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,758 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,568 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,967 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,941 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,512 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,237 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,074 |
| World Map Quiz | 0 | - | 4.90 | 49,314 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,283 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,443 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,617 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,847 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,950 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,489 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,267 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,541 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,239 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,911 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,403 |
| Widest Countries East to West | 0 | - | 4.93 | 119,322 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,809 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,944 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,631 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,491 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,786 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,116 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,442 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,038 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,260 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,168 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,584 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,823 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,165 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,439 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,934 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,826 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,840 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,874 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,047 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,289 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,023 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,897 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,522 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,062,425 |
| One Border Countries | 0 | - | 4.98 | 409,976 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,088 |
| Most Similar Country Names | 0 | - | 4.15 | 43,650 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,942 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,392,072 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,075 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,967 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,976 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,925 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,484 |
| Countries by National Anthem | 0 | - | 4.95 | 61,827 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,348 |
| EU Countries Quiz | 0 | - | 4.99 | 227,814 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,596 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,600 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,912 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,816 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,349 |
| German-Speaking Countries | 0 | - | 4.88 | 117,514 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,876 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,171 |
