| Countries of the World Quiz | 0 | - | 5.00 | 41,349,069 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 126,440 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,442 |
| Countries with the Most Christians | 0 | - | 4.93 | 122,653 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,121,440 |
| Least Christian Countries with Exceptions | 0 | - | 4.89 | 73,604 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,191,422 |
| Members of the Arab League | 0 | - | 4.85 | 64,395 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,762 |
| Himalayan Countries | 0 | - | 4.95 | 106,689 |
| Andean Countries | 0 | - | 4.91 | 59,328 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,382 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,187 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,559 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,486 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,803 |
| Danube Countries | 0 | - | 4.96 | 56,961 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,984 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,094 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,971 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,908 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,175 |
| European Landlocked Countries | 0 | - | 4.99 | 136,225 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,028 |
| Countries with the Most Species | 0 | - | 4.99 | 89,685 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,831 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,860 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,154 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,676 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,649 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,915 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,519 |
| Countries in the Alps | 0 | - | 4.84 | 103,266 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,884 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,292 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,930 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,979 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,449 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,962 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,096 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,475 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,510 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,053 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,817 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,793 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,846 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,158 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,330 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,890 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,301 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,654 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,716 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,237 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,029 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,560 |
| Largest Countries By Category | 0 | - | 4.97 | 145,694 |
| Countries by Countries | 0 | - | 4.96 | 55,108 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,346 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,955 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,908 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,897 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 342,941 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 358,895 |
| Island Countries Quiz | 0 | - | 4.99 | 664,382 |
| Biggest Countries by Area | 0 | - | 5.00 | 939,931 |
| Northernmost Countries | 0 | - | 4.99 | 329,205 |
| Countries of South America | 0 | - | 5.00 | 801,749 |
| Countries of Oceania | 0 | - | 5.00 | 903,634 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,591,739 |
| Countries with the Most Catholics | 0 | - | 4.91 | 94,436 |
| Orthodox Countries | 0 | - | 4.91 | 118,289 |
| Battle to Country | 0 | - | 4.92 | 36,122 |
| Monarchies of Europe | 0 | - | 4.88 | 87,596 |
| Monarchies of Asia | 0 | - | 4.95 | 54,434 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 99,246 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,554 |
| Countries with Megacities | 0 | - | 4.99 | 199,486 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,306 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,942 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 96,935 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,913 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,450 |
| Countries by Official Language | 0 | - | 4.96 | 174,102 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,134 |
| Countries in their Native Language | 0 | - | 4.98 | 179,335 |
| Independence from Whom | 0 | - | 4.99 | 187,475 |
| Subdivisions by Country | 0 | - | 4.82 | 46,676 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,534 |
| Megadiverse Countries | 0 | - | 4.96 | 126,140 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,431 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,101 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,629 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,308 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,484 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,776 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,656 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,374 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,666 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,440 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,919 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,555 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,135 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,001 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,621 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 180,221 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 110,519 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 102,590 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 82,152 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 84,272 |
| World Map Quiz | 0 | - | 4.91 | 50,398 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 115,940 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,114 |
| Countries by Founding Story | 0 | - | 4.92 | 55,393 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,239 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,844 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,054 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,615 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,999 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 72,370 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,440 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,521 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,017 |
| Widest Countries East to West | 0 | - | 4.93 | 119,973 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,987 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,770 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,974 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,097 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,965 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,716 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,619 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,243 |
| Countries with Double Letters | 0 | - | 4.96 | 69,912 |
| Countries that End in N | 0 | - | 4.94 | 134,150 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,489 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,888 |
| Countries with W | 0 | - | 4.96 | 124,145 |
| Countries with Z | 0 | - | 4.98 | 246,140 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,337 |
| Countries That End in U | 0 | - | 4.95 | 108,290 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,750 |
| Countries that End in O | 0 | - | 4.92 | 147,517 |
| Countries that End in R | 0 | - | 4.84 | 96,833 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,633 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,634 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,874 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,090 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,020 |
| Countries That End in Y | 0 | - | 4.90 | 161,983 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,030 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,512 |
| Countries that End in I | 0 | - | 4.92 | 114,841 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,563 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,932 |
| Countries That End in NIA | 0 | - | 4.93 | 101,335 |
| Countries That End in BIA | 0 | - | 4.91 | 126,712 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,224 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,360 |
| Countries That End in RIA | 0 | - | 4.90 | 101,447 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,080 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 202,854 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,681 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,688 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,351 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,193 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,425 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,262 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,267 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,595 |
| Countries that End in L | 0 | - | 4.95 | 135,225 |
| "Land" Countries | 0 | - | 4.98 | 291,186 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,384 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,296 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,835 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,638 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,150 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,702 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,716 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,168 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,981 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,148 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,575 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,249 |
| Top 10 Coldest European Countries | 0 | - | 4.95 | 182,016 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 116,311 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,742 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 116,920 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,814 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,941 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,319,784 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,318 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,090,935 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,427,529 |
| One Border Countries | 0 | - | 4.98 | 412,623 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,361 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.88 | 68,910 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 82,323 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 68,364 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 136,477 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 65,463 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,740 |
