| Countries of the World Quiz | 0 | - | 5.00 | 47,863,188 |
| Countries of Africa | 0 | - | 5.00 | 2,558,947 |
| Landlocked Countries | 0 | - | 4.99 | 425,587 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,036 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,828 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,166 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,246 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,297 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,285 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,847 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,161 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,567 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,278 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,596 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,361 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,304 |
| Pixelated World Map | 0 | - | 5.00 | 144,083 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,311 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,245 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,318 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,112 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,478 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,053 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,399 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,633 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,721 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,673 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,047 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,639 |
| World Coats of Arms | 0 | - | 4.99 | 65,113 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,643 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,432 |
| Every Country Shape | 0 | - | 5.00 | 470,880 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,172 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,096 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,150 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,080 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,910 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,783 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,223 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,998 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,140 |
| Himalayan Countries | 0 | - | 4.93 | 140,148 |
| Andean Countries | 0 | - | 4.94 | 85,386 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,530 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,923 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,105 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,382 |
| Danube Countries | 0 | - | 4.97 | 72,352 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,553 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,804 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,065 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,561 |
| European Landlocked Countries | 0 | - | 4.99 | 147,584 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,259 |
| Countries with the Most Species | 0 | - | 4.99 | 103,545 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,369 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,767 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,873 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,822 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,987 |
| Countries in the Alps | 0 | - | 4.87 | 118,742 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,564 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,818 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,945 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,002 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,922 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,231 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,372 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,834 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,405 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,154 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,853 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,730 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,539 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,765 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,866 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,774 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,592 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,769 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,636 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,592 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,089 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,490 |
| Largest Countries By Category | 0 | - | 4.97 | 158,822 |
| Countries by Countries | 0 | - | 4.96 | 63,621 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,222 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,389 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,083 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,252 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,623 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,578 |
| Island Countries | 0 | - | 4.99 | 712,482 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,479 |
| Northernmost Countries | 0 | - | 4.99 | 363,895 |
| Countries of South America | 0 | - | 5.00 | 932,358 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,986 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,530 |
| "Land" Countries | 0 | - | 4.98 | 338,340 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,968 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,663 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,615 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,384 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,159 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,466 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,363 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,757 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,187 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,877 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,118 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,123 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,104 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,956 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,910 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,124 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,630 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,364 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,719 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,508 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,099 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,217 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,095 |
| Countries with Megacities | 0 | - | 4.99 | 267,004 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,102 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,113 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,214 |
| Countries by Official Language | 0 | - | 4.95 | 195,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,581 |
| Countries in their Native Language | 0 | - | 4.99 | 199,702 |
| Independence from Whom | 0 | - | 4.99 | 213,016 |
| Subdivisions by Country | 0 | - | 4.87 | 50,605 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,405 |
| Megadiverse Countries | 0 | - | 4.96 | 135,268 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,917 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,618 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,224 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,807 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,836 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,092 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,563 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,999 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,494 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,365 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,437 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,138 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,569 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,818 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,303 |
| World Map Quiz | 0 | - | 4.81 | 65,685 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,178 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,846 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,088 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,535 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,137 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,698 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,536 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,702 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,214 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,054 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,542 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,522 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,414 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,513 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,708 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,681 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,665 |
| Widest Countries East to West | 0 | - | 4.92 | 130,438 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,593 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,237 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,512 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,053 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,954 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,466 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,493 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,031 |
| Countries that End in N | 0 | - | 4.95 | 171,892 |
| Countries with Five Letters | 0 | - | 4.96 | 283,705 |
| Countries with Six Letters | 0 | - | 4.94 | 214,437 |
| Countries with W | 0 | - | 4.96 | 160,908 |
| Countries with Z | 0 | - | 4.98 | 292,397 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,263 |
| Countries That End in U | 0 | - | 4.95 | 121,176 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,074 |
| Countries that End in O | 0 | - | 4.92 | 160,196 |
| Countries that End in R | 0 | - | 4.87 | 119,173 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,925 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,806 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,131 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,812 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,738 |
| Countries That End in Y | 0 | - | 4.91 | 186,082 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,434 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,258 |
| Countries that End in I | 0 | - | 4.94 | 135,309 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,604 |
