| Landlocked Countries | 0 | - | 4.99 | 420,989 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,499,038 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,978 |
| Himalayan Countries | 0 | - | 4.95 | 138,289 |
| Andean Countries | 0 | - | 4.95 | 84,363 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,588 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,498 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,211 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,623 |
| Danube Countries | 0 | - | 4.97 | 71,896 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,863 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,288 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,083 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,555 |
| European Landlocked Countries | 0 | - | 4.99 | 147,026 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,456 |
| Countries with the Most Species | 0 | - | 4.99 | 103,142 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,602 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,533 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,674 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,149 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,554 |
| Countries in the Alps | 0 | - | 4.87 | 118,035 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,265 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,823 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,578 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,502 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,376 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,871 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,535 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,393 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,110 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,740 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,442 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,114 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,383 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,410 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,657 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,209 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,722 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,877 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,436 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,809 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,140 |
| Largest Countries By Category | 0 | - | 4.97 | 158,009 |
| Countries by Countries | 0 | - | 4.96 | 63,077 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,529 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,563 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,056 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,957 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,753 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,992 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,955 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,173 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,662 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,427 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,536 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,211 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,378 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,675 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,623 |
| Pixelated World Map | 0 | - | 5.00 | 143,474 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,585 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,631 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,720 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,504 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,160 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,510 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,847 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,052 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,151 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,993 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,802 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,522 |
| World Coats of Arms | 0 | - | 4.99 | 64,598 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,499 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,976 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,522 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,696 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,208 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,578 |
| Island Countries | 0 | - | 4.99 | 710,630 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,609 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,475 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,017 |
| Every Country Shape | 0 | - | 5.00 | 466,175 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,519 |
| Northernmost Countries | 0 | - | 4.99 | 361,484 |
| Countries of South America | 0 | - | 5.00 | 925,781 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,982 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,579 |
| "Land" Countries | 0 | - | 4.98 | 336,970 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,000 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,991 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,616 |
| Countries with Megacities | 0 | - | 4.99 | 263,829 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,470 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,325 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,351 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,737 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,365 |
| Countries by Official Language | 0 | - | 4.95 | 195,036 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,094 |
| Countries in their Native Language | 0 | - | 4.99 | 198,541 |
| Independence from Whom | 0 | - | 4.99 | 211,847 |
| Subdivisions by Country | 0 | - | 4.86 | 50,384 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,490 |
| Megadiverse Countries | 0 | - | 4.96 | 134,923 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,901 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,285 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,458 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,427 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,868 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,073 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,978 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,521 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,319 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,967 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,049 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,452 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,816 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,128 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,907 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,288 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,436 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,864 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,938 |
| World Map Quiz | 0 | - | 4.81 | 64,942 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,244 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,144 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,717 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,307 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 37,083 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,568 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,598 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,236 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,395 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,730 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,246 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,937 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,879 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,152 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,875 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,917 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,792 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,917 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,211 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,386 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,493 |
| Widest Countries East to West | 0 | - | 4.92 | 129,558 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,244 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,085 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,681 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,466 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,751 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,777 |
| Countries with Double Letters | 0 | - | 4.97 | 95,910 |
| Countries that End in N | 0 | - | 4.95 | 170,823 |
| Countries with Five Letters | 0 | - | 4.96 | 281,925 |
| Countries with Six Letters | 0 | - | 4.94 | 213,244 |
| Countries with W | 0 | - | 4.97 | 160,097 |
| Countries with Z | 0 | - | 4.98 | 291,098 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,454 |
| Countries That End in U | 0 | - | 4.95 | 120,719 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,229 |
| Countries that End in O | 0 | - | 4.92 | 159,424 |
| Countries that End in R | 0 | - | 4.87 | 118,893 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,659 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,835 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,519 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,358 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,224 |
| Countries That End in Y | 0 | - | 4.91 | 185,802 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,715 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,714 |
| Countries that End in I | 0 | - | 4.94 | 135,026 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,883 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,747 |
| Countries That End in NIA | 0 | - | 4.92 | 109,692 |
| Countries That End in BIA | 0 | - | 4.93 | 149,085 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,969 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,299 |
| Countries That End in RIA | 0 | - | 4.93 | 126,728 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,888 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,281 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,522 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,925 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,498 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,499 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,911 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,409 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,403 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,350 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,828 |
