| Landlocked Countries | 0 | - | 4.99 | 423,032 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,665,453 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,026 |
| Himalayan Countries | 0 | - | 4.95 | 139,184 |
| Andean Countries | 0 | - | 4.93 | 84,878 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,095 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,234 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,676 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,988 |
| Danube Countries | 0 | - | 4.97 | 72,136 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,191 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,545 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,532 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,045 |
| European Landlocked Countries | 0 | - | 4.99 | 147,281 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,840 |
| Countries with the Most Species | 0 | - | 4.99 | 103,349 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,964 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,648 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,767 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,620 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,367 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,787 |
| Countries in the Alps | 0 | - | 4.87 | 118,363 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,764 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,288 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,758 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,720 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,638 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,043 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,816 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,610 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,249 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,956 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,721 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,590 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,327 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,567 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,636 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,162 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,403 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,759 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,249 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,512 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,433 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,312 |
| Largest Countries By Category | 0 | - | 4.97 | 158,402 |
| Countries by Countries | 0 | - | 4.96 | 63,359 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,850 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,326 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,794 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,786,043 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,371 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,942 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,110 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,444 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,590 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,156 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,699 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,931 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,616 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,852 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,947 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,885 |
| Pixelated World Map | 0 | - | 5.00 | 143,765 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,894 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,886 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,969 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,285 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,742 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,094 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,311 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,376 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,281 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,911 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,565 |
| World Coats of Arms | 0 | - | 4.99 | 64,814 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,621 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,068 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,720 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,538 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,843 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,997 |
| Island Countries | 0 | - | 4.99 | 711,426 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,268 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,479 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,658 |
| Every Country Shape | 0 | - | 5.00 | 468,508 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,175 |
| Northernmost Countries | 0 | - | 4.99 | 362,493 |
| Countries of South America | 0 | - | 5.00 | 928,818 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,759 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,588 |
| "Land" Countries | 0 | - | 4.98 | 337,637 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,274 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,093 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,208 |
| Countries with Megacities | 0 | - | 4.99 | 265,317 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,034 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,641 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,630 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,280 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,712 |
| Countries by Official Language | 0 | - | 4.95 | 195,470 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,674 |
| Countries in their Native Language | 0 | - | 4.99 | 199,247 |
| Independence from Whom | 0 | - | 4.99 | 212,333 |
| Subdivisions by Country | 0 | - | 4.87 | 50,484 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,914 |
| Megadiverse Countries | 0 | - | 4.96 | 135,095 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,279 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,415 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,008 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,893 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,293 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,141 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,269 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,660 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,618 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,416 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,708 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,181 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,905 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,952 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,269 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,014 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,425 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,549 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,538 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,164 |
| World Map Quiz | 0 | - | 4.81 | 65,251 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,456 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,635 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,210 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,716 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 38,989 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 33,057 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,824 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,849 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,483 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,623 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,915 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,430 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,129 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,310 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,410 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,118 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,572 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 111,013 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,124 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,401 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,496 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,651 |
| Widest Countries East to West | 0 | - | 4.92 | 129,750 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,480 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,515 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,345 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,843 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,701 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,973 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,412 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,822 |
| Countries with Double Letters | 0 | - | 4.96 | 96,480 |
| Countries that End in N | 0 | - | 4.95 | 171,363 |
| Countries with Five Letters | 0 | - | 4.96 | 282,919 |
| Countries with Six Letters | 0 | - | 4.94 | 213,813 |
| Countries with W | 0 | - | 4.96 | 160,503 |
| Countries with Z | 0 | - | 4.98 | 291,731 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,866 |
| Countries That End in U | 0 | - | 4.95 | 120,942 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,640 |
| Countries that End in O | 0 | - | 4.92 | 159,596 |
| Countries that End in R | 0 | - | 4.87 | 119,026 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,788 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,314 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,817 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,581 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,494 |
| Countries That End in Y | 0 | - | 4.91 | 185,942 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,058 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,987 |
| Countries that End in I | 0 | - | 4.94 | 135,170 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,249 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,880 |
| Countries That End in NIA | 0 | - | 4.92 | 109,858 |
| Countries That End in BIA | 0 | - | 4.93 | 149,309 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,219 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,527 |
| Countries That End in RIA | 0 | - | 4.93 | 126,881 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,121 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,893 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,850 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,281 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,826 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,638 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,113 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,468 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,630 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,487 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,103 |
