| Landlocked Countries | 0 | - | 4.99 | 414,228 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,969,119 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,832 |
| Himalayan Countries | 0 | - | 4.95 | 135,560 |
| Andean Countries | 0 | - | 4.94 | 82,944 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,306 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,349 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,010 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,679 |
| Danube Countries | 0 | - | 4.97 | 71,131 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,839 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,599 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,610 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,522 |
| European Landlocked Countries | 0 | - | 4.99 | 145,830 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,299 |
| Countries with the Most Species | 0 | - | 4.99 | 95,280 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,440 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,220 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,388 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,989 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,624 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,001 |
| Countries in the Alps | 0 | - | 4.86 | 116,921 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,637 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,371 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,062 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,475 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,247 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,058 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,662 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,813 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,515 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,114 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,215 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,076 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,496 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,803 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,793 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,194 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,705 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,289 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,858 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,605 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,871 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,637 |
| Largest Countries By Category | 0 | - | 4.97 | 156,862 |
| Countries by Countries | 0 | - | 4.96 | 62,322 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,504 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,982 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,828 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,721,882 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,489 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,012 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,472 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,132 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,567 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,113 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,493 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,378 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,837 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,536 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,758 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,768 |
| Pixelated World Map | 0 | - | 5.00 | 142,531 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,504 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,824 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,910 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,676 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,732 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,648 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,928 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,065 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,249 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,406 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,297 |
| World Coats of Arms | 0 | - | 4.99 | 63,938 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,089 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,659 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,855 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,760 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,351 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,165 |
| Island Countries | 0 | - | 4.99 | 707,845 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,577 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,518 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,056 |
| Every Country Shape | 0 | - | 5.00 | 459,510 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,295 |
| Northernmost Countries | 0 | - | 4.99 | 358,046 |
| Countries of South America | 0 | - | 5.00 | 915,862 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,893 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,485 |
| "Land" Countries | 0 | - | 4.98 | 333,808 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,038 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 30,923 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,737 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,580 |
| Countries with Megacities | 0 | - | 4.99 | 247,481 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,428 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,174 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,504 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,835 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,094 |
| Countries by Official Language | 0 | - | 4.95 | 192,904 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,315 |
| Countries in their Native Language | 0 | - | 4.99 | 196,757 |
| Independence from Whom | 0 | - | 4.99 | 209,854 |
| Subdivisions by Country | 0 | - | 4.86 | 50,097 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,873 |
| Megadiverse Countries | 0 | - | 4.97 | 133,955 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,932 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,948 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,495 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,151 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,459 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,872 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,740 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,042 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,160 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,206 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,244 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,758 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,717 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,451 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,538 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,532 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,724 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,052 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,761 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,155 |
| World Map Quiz | 0 | - | 4.81 | 63,620 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,400 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,646 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,412 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,732 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,631 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,417 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,737 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,346 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,373 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,092 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,637 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,112 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,480 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,254 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,013 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,934 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,926 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,119 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,336 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,980 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,381 |
| Widest Countries East to West | 0 | - | 4.92 | 128,664 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,227 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,304 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,594 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,731 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,687 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,112 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,088 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,600 |
| Countries with Double Letters | 0 | - | 4.96 | 93,493 |
| Countries that End in N | 0 | - | 4.94 | 156,979 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,796 |
| Countries with Six Letters | 0 | - | 4.93 | 210,474 |
| Countries with W | 0 | - | 4.97 | 158,298 |
| Countries with Z | 0 | - | 4.98 | 288,007 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,622 |
| Countries That End in U | 0 | - | 4.95 | 119,550 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,689 |
| Countries that End in O | 0 | - | 4.92 | 158,590 |
| Countries that End in R | 0 | - | 4.87 | 118,306 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,880 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,210 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,415 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,552 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,094 |
| Countries That End in Y | 0 | - | 4.90 | 185,235 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,475 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,769 |
| Countries that End in I | 0 | - | 4.94 | 134,468 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,298 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,237 |
| Countries That End in NIA | 0 | - | 4.92 | 109,054 |
| Countries That End in BIA | 0 | - | 4.92 | 147,766 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,139 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,545 |
| Countries That End in RIA | 0 | - | 4.93 | 126,127 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,072 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,302 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,560 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,940 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,434 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,961 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,182 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,708 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,569 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,842 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,880 |
