| Landlocked Countries | 0 | - | 4.99 | 415,270 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,048,509 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,253 |
| Himalayan Countries | 0 | - | 4.95 | 135,944 |
| Andean Countries | 0 | - | 4.94 | 83,156 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,471 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,605 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,173 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,820 |
| Danube Countries | 0 | - | 4.97 | 71,254 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,986 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,704 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,843 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,777 |
| European Landlocked Countries | 0 | - | 4.99 | 145,953 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,500 |
| Countries with the Most Species | 0 | - | 4.99 | 95,335 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,631 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,267 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,438 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,061 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,711 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,066 |
| Countries in the Alps | 0 | - | 4.86 | 117,108 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,749 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,571 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,153 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,574 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,368 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,785 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,889 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,679 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,202 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,269 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,136 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,610 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,873 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,885 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,442 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,791 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,011 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,204 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,165 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,719 |
| Largest Countries By Category | 0 | - | 4.97 | 157,007 |
| Countries by Countries | 0 | - | 4.96 | 62,432 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,651 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,020 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,927 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,924 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,686 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,082 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,532 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,492 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,877 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,369 |
| Country Flags with the Southern Cross | 0 | - | 4.80 | 61,641 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,150 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,057 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,911 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,911 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,898 |
| Pixelated World Map | 0 | - | 5.00 | 142,683 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,668 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,946 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,024 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,782 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,794 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,865 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,160 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,340 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,470 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,464 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,329 |
| World Coats of Arms | 0 | - | 4.99 | 64,024 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,158 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,706 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,958 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,729 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,755 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,720 |
| Island Countries | 0 | - | 4.99 | 708,287 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,910 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,977 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,352 |
| Every Country Shape | 0 | - | 5.00 | 460,483 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,579 |
| Northernmost Countries | 0 | - | 4.99 | 358,641 |
| Countries of South America | 0 | - | 5.00 | 917,640 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,978 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,971 |
| "Land" Countries | 0 | - | 4.98 | 334,078 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,765 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 31,220 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,769 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,875 |
| Countries with Megacities | 0 | - | 4.99 | 248,116 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,758 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,337 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,624 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,142 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,282 |
| Countries by Official Language | 0 | - | 4.95 | 193,155 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,668 |
| Countries in their Native Language | 0 | - | 4.99 | 196,991 |
| Independence from Whom | 0 | - | 4.99 | 210,125 |
| Subdivisions by Country | 0 | - | 4.86 | 50,143 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,043 |
| Megadiverse Countries | 0 | - | 4.97 | 134,372 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,148 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,006 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,072 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,346 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,534 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,902 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,874 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,119 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,317 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,431 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,297 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,785 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,898 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,513 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,617 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,580 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,791 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,118 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,105 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,272 |
| World Map Quiz | 0 | - | 4.81 | 63,776 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,575 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,887 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,645 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,171 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,952 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,548 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,844 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,480 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,479 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,168 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,712 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,203 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,765 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,509 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,226 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,290 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,103 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,304 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,491 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,072 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,522 |
| Widest Countries East to West | 0 | - | 4.92 | 129,018 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,283 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,473 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,647 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,859 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,815 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,220 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,587 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,639 |
| Countries with Double Letters | 0 | - | 4.96 | 93,671 |
| Countries that End in N | 0 | - | 4.94 | 157,135 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,021 |
| Countries with Six Letters | 0 | - | 4.93 | 210,680 |
| Countries with W | 0 | - | 4.97 | 158,417 |
| Countries with Z | 0 | - | 4.98 | 288,227 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,750 |
| Countries That End in U | 0 | - | 4.95 | 119,611 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,865 |
| Countries that End in O | 0 | - | 4.92 | 158,656 |
| Countries that End in R | 0 | - | 4.87 | 118,375 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,933 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,401 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,552 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,643 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,197 |
| Countries That End in Y | 0 | - | 4.90 | 185,284 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,615 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,892 |
| Countries that End in I | 0 | - | 4.94 | 134,540 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,462 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,298 |
| Countries That End in NIA | 0 | - | 4.92 | 109,116 |
| Countries That End in BIA | 0 | - | 4.92 | 147,847 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,251 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,633 |
| Countries That End in RIA | 0 | - | 4.93 | 126,197 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,180 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,705 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,681 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,029 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,581 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,026 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,280 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,795 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,678 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,895 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,986 |
