| Countries with Double Letters | 0 | - | 4.96 | 68,241 |
| Countries that End in N | 0 | - | 4.93 | 132,584 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,607 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,911 |
| Countries with W | 0 | - | 4.97 | 122,629 |
| Countries with Z | 0 | - | 4.98 | 244,302 |
| Countries with Letters Missing | 0 | - | 4.97 | 161,592 |
| Countries That End in U | 0 | - | 4.95 | 107,507 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,377 |
| Countries that End in O | 0 | - | 4.92 | 146,880 |
| Countries that End in R | 0 | - | 4.85 | 96,448 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,211 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,251 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,713 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,184 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,244 |
| Countries That End in Y | 0 | - | 4.90 | 161,605 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,934 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,713 |
| Countries that End in I | 0 | - | 4.92 | 114,480 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,485 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,249 |
| Countries That End in NIA | 0 | - | 4.93 | 100,813 |
| Countries That End in BIA | 0 | - | 4.91 | 126,033 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,214 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,707 |
| Countries That End in RIA | 0 | - | 4.90 | 100,929 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,407 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,608 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,620 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,504 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,315 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,198 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,676 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,793 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,663 |
| Countries that End in L | 0 | - | 4.95 | 134,238 |
| "Land" Countries | 0 | - | 4.98 | 289,117 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,767 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,168 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,777 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,292 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,885,197 |
| Countries with Four Letters | 0 | - | 4.99 | 375,453 |
| Members of the Arab League | 0 | - | 4.85 | 61,714 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,778 |
| Himalayan Countries | 0 | - | 4.94 | 104,643 |
| Andean Countries | 0 | - | 4.91 | 58,013 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,947 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,263 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,609 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,006 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,251 |
| Danube Countries | 0 | - | 4.97 | 56,611 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,641 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,806 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,115 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,301 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,451 |
| European Landlocked Countries | 0 | - | 4.99 | 115,412 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,271 |
| Countries with the Most Species | 0 | - | 4.99 | 89,508 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,299 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,658 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,988 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,211 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,386 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,662 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,086 |
| Countries in the Alps | 0 | - | 4.84 | 102,557 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,237 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,941 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,525 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,186 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,889 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,490 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,562 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,106 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,286 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,598 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,379 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,550 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,637 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,420 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,902 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,409 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,866 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,292 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,336 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,842 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,718 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,246 |
| Largest Countries By Category | 0 | - | 4.96 | 144,784 |
| Countries by Countries | 0 | - | 4.96 | 54,592 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,066,768 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,293 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,656 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,112 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 116,492 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 180,647 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,885 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,134 |
| Island Countries Quiz | 0 | - | 4.99 | 660,100 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,313 |
| Northernmost Countries | 0 | - | 4.99 | 326,942 |
| Countries of South America | 0 | - | 5.00 | 792,350 |
| Countries of Oceania | 0 | - | 5.00 | 892,612 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,147,980 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,570,627 |
| Countries with J | 0 | - | 4.56 | 171,776 |
| Add A Letter - Make a Country | 0 | - | 4.79 | 68,076 |
| Countries by Consonants | 0 | - | 4.44 | 72,889 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,719 |
| Countries with Megacities | 0 | - | 4.99 | 196,968 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,317 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,819 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,205 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,776 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,646 |
| Countries by Official Language | 0 | - | 4.96 | 170,866 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,025 |
| Countries in their Native Language | 0 | - | 4.98 | 178,195 |
| Independence from Whom | 0 | - | 4.99 | 185,402 |
| Subdivisions by Country | 0 | - | 4.82 | 46,416 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,340 |
| Megadiverse Countries | 0 | - | 4.96 | 125,263 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,273 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,626 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,359 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,502 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,099 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,792 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,063 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,004 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,317 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,742 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,562 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,959 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,933 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,503 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,229 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,026 |
| World Map Quiz | 0 | - | 4.90 | 49,291 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,216 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,428 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,592 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,837 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,930 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,435 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,252 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,523 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,217 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,889 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,391 |
| Widest Countries East to West | 0 | - | 4.93 | 119,311 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,804 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,935 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,623 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,364 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,777 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,105 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,439 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,033 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,247 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,153 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,569 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,775 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,084 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,420 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,711 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,801 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,821 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,855 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,040 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,283 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,012 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,310,687 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,486 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,061,665 |
| One Border Countries | 0 | - | 4.98 | 409,853 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,071 |
| Most Similar Country Names | 0 | - | 4.15 | 43,643 |
| Longest Country Name A-Z | 0 | - | 4.36 | 36,932 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,391,271 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,054 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,921 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,959 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,916 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,421 |
| Countries by National Anthem | 0 | - | 4.95 | 61,825 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,319 |
| EU Countries Quiz | 0 | - | 4.99 | 227,771 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,440 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,597 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,876 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,791 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,318 |
| German-Speaking Countries | 0 | - | 4.88 | 117,505 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,866 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,166 |
