| Landlocked Countries | 0 | - | 4.99 | 413,756 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,931,792 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,651 |
| Himalayan Countries | 0 | - | 4.95 | 135,413 |
| Andean Countries | 0 | - | 4.94 | 82,846 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,238 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,235 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,930 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,625 |
| Danube Countries | 0 | - | 4.97 | 71,096 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,777 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,548 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,516 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,427 |
| European Landlocked Countries | 0 | - | 4.99 | 145,768 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,231 |
| Countries with the Most Species | 0 | - | 4.99 | 95,248 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,368 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,202 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,965 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,582 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,958 |
| Countries in the Alps | 0 | - | 4.86 | 116,845 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,582 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,278 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,020 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,433 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,185 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,014 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,594 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,771 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,353 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,076 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,200 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,050 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,460 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,759 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,764 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,102 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,658 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,260 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,781 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,371 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,715 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,611 |
| Largest Countries By Category | 0 | - | 4.97 | 156,781 |
| Countries by Countries | 0 | - | 4.96 | 62,269 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,410 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,965 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,779 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,718,205 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,392 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,977 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,453 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,790 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,246 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,947 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,394 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,539 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,691 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,277 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,647 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,665 |
| Pixelated World Map | 0 | - | 5.00 | 142,467 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,410 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,758 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,833 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,601 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,679 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,409 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,710 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,774 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,987 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,374 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,286 |
| World Coats of Arms | 0 | - | 4.99 | 63,873 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,051 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,629 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,806 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,212 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,163 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,922 |
| Island Countries | 0 | - | 4.99 | 707,676 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,412 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,317 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,910 |
| Every Country Shape | 0 | - | 5.00 | 459,081 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,644 |
| Northernmost Countries | 0 | - | 4.99 | 357,807 |
| Countries of South America | 0 | - | 5.00 | 915,001 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,808 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,871 |
| "Land" Countries | 0 | - | 4.98 | 333,688 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,684 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,607 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,713 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,341 |
| Countries with Megacities | 0 | - | 4.99 | 247,103 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,211 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,039 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,432 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,629 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,950 |
| Countries by Official Language | 0 | - | 4.95 | 192,803 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,168 |
| Countries in their Native Language | 0 | - | 4.99 | 196,665 |
| Independence from Whom | 0 | - | 4.99 | 209,735 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,786 |
| Megadiverse Countries | 0 | - | 4.97 | 133,911 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,825 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,923 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,377 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,054 |
| 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 | 161,685 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,014 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,046 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,162 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,220 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,603 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,434 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,503 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,509 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,691 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,033 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,630 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,060 |
| World Map Quiz | 0 | - | 4.81 | 63,514 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,346 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,530 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,321 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,428 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,493 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,359 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,685 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,297 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,323 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,052 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,584 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,060 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,377 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,008 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,965 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,806 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,866 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,075 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,289 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,957 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,346 |
| Widest Countries East to West | 0 | - | 4.92 | 128,619 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,245 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,576 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,645 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,059 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,587 |
| Countries with Double Letters | 0 | - | 4.97 | 93,411 |
| Countries that End in N | 0 | - | 4.94 | 156,903 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,717 |
| Countries with Six Letters | 0 | - | 4.93 | 210,390 |
| Countries with W | 0 | - | 4.97 | 158,242 |
| Countries with Z | 0 | - | 4.98 | 287,906 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,570 |
| Countries That End in U | 0 | - | 4.95 | 119,527 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,590 |
| Countries that End in O | 0 | - | 4.92 | 158,568 |
| Countries that End in R | 0 | - | 4.87 | 118,280 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,863 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,073 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,354 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,508 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,039 |
| Countries That End in Y | 0 | - | 4.90 | 185,214 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,399 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,702 |
| Countries that End in I | 0 | - | 4.94 | 134,426 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,215 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,203 |
| Countries That End in NIA | 0 | - | 4.92 | 109,015 |
| Countries That End in BIA | 0 | - | 4.92 | 147,725 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,085 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,496 |
| Countries That End in RIA | 0 | - | 4.93 | 126,094 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,021 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,215 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,538 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,895 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,374 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,938 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,138 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,662 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,524 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,818 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,829 |
