| Landlocked Countries | 0 | - | 4.99 | 415,284 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,049,816 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,258 |
| Himalayan Countries | 0 | - | 4.95 | 135,948 |
| Andean Countries | 0 | - | 4.94 | 83,159 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,478 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,610 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,176 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,823 |
| Danube Countries | 0 | - | 4.97 | 71,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,987 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,705 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,843 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,782 |
| European Landlocked Countries | 0 | - | 4.99 | 145,953 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,503 |
| Countries with the Most Species | 0 | - | 4.99 | 95,340 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,632 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,267 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,439 |
| 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 | 57,068 |
| Countries in the Alps | 0 | - | 4.86 | 117,109 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,752 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,573 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,154 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,576 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,371 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,790 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,890 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,682 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,203 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,271 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,137 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,610 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,875 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,886 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,443 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,792 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,012 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,213 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,168 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,720 |
| Largest Countries By Category | 0 | - | 4.97 | 157,013 |
| Countries by Countries | 0 | - | 4.96 | 62,434 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,656 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,021 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,930 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,730,089 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,689 |
| 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 | 143,499 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,883 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,374 |
| Country Flags with the Southern Cross | 0 | - | 4.80 | 61,642 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,157 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,057 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,916 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,916 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,899 |
| Pixelated World Map | 0 | - | 5.00 | 142,685 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,672 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,947 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,027 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,782 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,795 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,869 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,162 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,343 |
| 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 | 64,027 |
| 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 | 43,959 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,744 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,760 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,725 |
| Island Countries | 0 | - | 4.99 | 708,295 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,915 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,981 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,359 |
| Every Country Shape | 0 | - | 5.00 | 460,493 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,594 |
| Northernmost Countries | 0 | - | 4.99 | 358,650 |
| Countries of South America | 0 | - | 5.00 | 917,668 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,010 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,011 |
| "Land" Countries | 0 | - | 4.98 | 334,080 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,803 |
| 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 | 171,880 |
| Countries with Megacities | 0 | - | 4.99 | 248,124 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,763 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,342 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,627 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,148 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,283 |
| Countries by Official Language | 0 | - | 4.95 | 193,159 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,678 |
| Countries in their Native Language | 0 | - | 4.99 | 196,993 |
| Independence from Whom | 0 | - | 4.99 | 210,127 |
| Subdivisions by Country | 0 | - | 4.86 | 50,143 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,045 |
| Megadiverse Countries | 0 | - | 4.97 | 134,396 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,155 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,006 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,074 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,347 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,535 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,903 |
| 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 | 93,318 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,435 |
| 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 | 75,903 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,515 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,619 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,580 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,792 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,118 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,113 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,274 |
| World Map Quiz | 0 | - | 4.81 | 63,778 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,576 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,891 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,647 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,175 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,959 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,549 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,846 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,481 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,480 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,169 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,714 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,204 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,769 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,509 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,228 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,294 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,105 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,304 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,492 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,073 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,523 |
| Widest Countries East to West | 0 | - | 4.92 | 129,020 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,283 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,475 |
| 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 | 127,221 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,599 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,641 |
| Countries with Double Letters | 0 | - | 4.96 | 93,673 |
| Countries that End in N | 0 | - | 4.94 | 157,135 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,022 |
| Countries with Six Letters | 0 | - | 4.93 | 210,683 |
| Countries with W | 0 | - | 4.97 | 158,417 |
| Countries with Z | 0 | - | 4.98 | 288,232 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,751 |
| Countries That End in U | 0 | - | 4.95 | 119,611 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,868 |
| Countries that End in O | 0 | - | 4.92 | 158,657 |
| Countries that End in R | 0 | - | 4.87 | 118,376 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,934 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,404 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,554 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,646 |
| 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 | 196,616 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,895 |
| Countries that End in I | 0 | - | 4.94 | 134,541 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,466 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,299 |
| Countries That End in NIA | 0 | - | 4.92 | 109,117 |
| Countries That End in BIA | 0 | - | 4.92 | 147,847 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,255 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,635 |
| Countries That End in RIA | 0 | - | 4.93 | 126,197 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,183 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,710 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,683 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,031 |
| 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 | 124,680 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,896 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,991 |
