| Landlocked Countries | 0 | - | 4.99 | 413,785 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,934,913 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,661 |
| Himalayan Countries | 0 | - | 4.95 | 135,426 |
| Andean Countries | 0 | - | 4.94 | 82,854 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,244 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,246 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,932 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,627 |
| Danube Countries | 0 | - | 4.97 | 71,097 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,780 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,551 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,523 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,438 |
| European Landlocked Countries | 0 | - | 4.99 | 145,773 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,235 |
| Countries with the Most Species | 0 | - | 4.99 | 95,251 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,375 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,203 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,967 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,582 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,962 |
| Countries in the Alps | 0 | - | 4.86 | 116,854 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,583 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,281 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,022 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,435 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,191 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,020 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,599 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,773 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,369 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,079 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,200 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,051 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,461 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,765 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,767 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,107 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,661 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,263 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,791 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,390 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,727 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,612 |
| Largest Countries By Category | 0 | - | 4.97 | 156,788 |
| Countries by Countries | 0 | - | 4.96 | 62,271 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,415 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,969 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,784 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,578 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,404 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,979 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,454 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,801 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,254 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,953 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,395 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,610 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,698 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,296 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,648 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,669 |
| Pixelated World Map | 0 | - | 5.00 | 142,472 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,413 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,761 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,834 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,606 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,682 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,416 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,712 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,777 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,988 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,377 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,286 |
| World Coats of Arms | 0 | - | 4.99 | 63,881 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,054 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,630 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,808 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,269 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,172 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,938 |
| Island Countries | 0 | - | 4.99 | 707,692 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,434 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,332 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,917 |
| Every Country Shape | 0 | - | 5.00 | 459,113 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,687 |
| Northernmost Countries | 0 | - | 4.99 | 357,825 |
| Countries of South America | 0 | - | 5.00 | 915,114 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,884 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,045 |
| "Land" Countries | 0 | - | 4.98 | 333,699 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,782 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,612 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,713 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,384 |
| Countries with Megacities | 0 | - | 4.99 | 247,146 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,229 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,049 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,437 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,661 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,963 |
| Countries by Official Language | 0 | - | 4.95 | 192,807 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,174 |
| Countries in their Native Language | 0 | - | 4.99 | 196,677 |
| Independence from Whom | 0 | - | 4.99 | 209,747 |
| Subdivisions by Country | 0 | - | 4.86 | 50,073 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,795 |
| Megadiverse Countries | 0 | - | 4.97 | 133,915 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,833 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,924 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,386 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,064 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,432 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,865 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,688 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,018 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,060 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,163 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,221 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,752 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,615 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,435 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,506 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,510 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,696 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,632 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,066 |
| World Map Quiz | 0 | - | 4.81 | 63,520 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,348 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,541 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,329 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,468 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,509 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,367 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,692 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,305 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,327 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,059 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,588 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,065 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,391 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,014 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,972 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,821 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,873 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,080 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,294 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,958 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,347 |
| Widest Countries East to West | 0 | - | 4.92 | 128,621 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,250 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,577 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,702 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,651 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,065 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,054 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,588 |
| Countries with Double Letters | 0 | - | 4.97 | 93,421 |
| Countries that End in N | 0 | - | 4.94 | 156,912 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,721 |
| Countries with Six Letters | 0 | - | 4.93 | 210,397 |
| Countries with W | 0 | - | 4.97 | 158,245 |
| Countries with Z | 0 | - | 4.98 | 287,913 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,574 |
| Countries That End in U | 0 | - | 4.95 | 119,529 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,602 |
| Countries that End in O | 0 | - | 4.92 | 158,570 |
| Countries that End in R | 0 | - | 4.87 | 118,283 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,865 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,089 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,360 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,511 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,049 |
| Countries That End in Y | 0 | - | 4.90 | 185,215 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,406 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,705 |
| Countries that End in I | 0 | - | 4.94 | 134,430 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,225 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,206 |
| Countries That End in NIA | 0 | - | 4.92 | 109,017 |
| Countries That End in BIA | 0 | - | 4.92 | 147,729 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,090 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,502 |
| Countries That End in RIA | 0 | - | 4.93 | 126,095 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,023 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,221 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,540 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,900 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,383 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,941 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,141 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,667 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,530 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,820 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,838 |
