| Countries of the World Quiz | 0 | - | 5.00 | 47,861,833 |
| Countries of Africa | 0 | - | 5.00 | 2,558,885 |
| Landlocked Countries | 0 | - | 4.99 | 425,571 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,032 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,827 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,165 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,244 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,291 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,284 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,842 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,155 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,565 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,276 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,592 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,359 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,303 |
| Pixelated World Map | 0 | - | 5.00 | 144,080 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,310 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,244 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,314 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,111 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,478 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,052 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,398 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,633 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,719 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,671 |
| 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 | 65,110 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,636 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,428 |
| Every Country Shape | 0 | - | 5.00 | 470,858 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,085 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,068 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,147 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,080 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,909 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,783 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,222 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,997 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,135 |
| Himalayan Countries | 0 | - | 4.93 | 140,140 |
| Andean Countries | 0 | - | 4.94 | 85,381 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,528 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,919 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,102 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,379 |
| Danube Countries | 0 | - | 4.97 | 72,351 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,551 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,802 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,057 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,554 |
| European Landlocked Countries | 0 | - | 4.99 | 147,579 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,257 |
| Countries with the Most Species | 0 | - | 4.99 | 103,544 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,368 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,765 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,871 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,820 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,559 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,987 |
| Countries in the Alps | 0 | - | 4.87 | 118,738 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,563 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,806 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,944 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,000 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,917 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,230 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,367 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,828 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,404 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,153 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,850 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,729 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,536 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,762 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,864 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,773 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,590 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,764 |
| 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 | 245,581 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,082 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,489 |
| Largest Countries By Category | 0 | - | 4.97 | 158,820 |
| Countries by Countries | 0 | - | 4.96 | 63,618 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,219 |
| 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 | 335,234 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,622 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,574 |
| Island Countries | 0 | - | 4.99 | 712,476 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,464 |
| Northernmost Countries | 0 | - | 4.99 | 363,884 |
| Countries of South America | 0 | - | 5.00 | 932,332 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,952 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,465 |
| "Land" Countries | 0 | - | 4.98 | 338,335 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,964 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,663 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,613 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,380 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,115 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,464 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,361 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,754 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,186 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,872 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,104 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,123 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,103 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,955 |
| 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 | 58,629 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,364 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,717 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,507 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,092 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,217 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,089 |
| Countries with Megacities | 0 | - | 4.99 | 266,994 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,099 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,111 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,211 |
| Countries by Official Language | 0 | - | 4.95 | 195,956 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,578 |
| Countries in their Native Language | 0 | - | 4.99 | 199,699 |
| Independence from Whom | 0 | - | 4.99 | 213,013 |
| Subdivisions by Country | 0 | - | 4.87 | 50,605 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,405 |
| Megadiverse Countries | 0 | - | 4.96 | 135,266 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,915 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,614 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,223 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,794 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,835 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,091 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,561 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,992 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,488 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,362 |
| 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 | 75,567 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,808 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,299 |
| World Map Quiz | 0 | - | 4.81 | 65,680 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,177 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,845 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,085 |
| 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 | 107,697 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,534 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,679 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,212 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,052 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,539 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,517 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,412 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,510 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,706 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,680 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,657 |
| Widest Countries East to West | 0 | - | 4.92 | 130,434 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,592 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,234 |
| 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 | 128,463 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,492 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,888 |
| Countries with Double Letters | 0 | - | 4.96 | 97,029 |
| Countries that End in N | 0 | - | 4.95 | 171,891 |
| Countries with Five Letters | 0 | - | 4.96 | 283,702 |
| Countries with Six Letters | 0 | - | 4.94 | 214,432 |
| Countries with W | 0 | - | 4.96 | 160,906 |
| Countries with Z | 0 | - | 4.98 | 292,394 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,262 |
| Countries That End in U | 0 | - | 4.95 | 121,174 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,071 |
| Countries that End in O | 0 | - | 4.92 | 160,196 |
| Countries that End in R | 0 | - | 4.87 | 119,172 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,924 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,802 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,124 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,808 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,736 |
| Countries That End in Y | 0 | - | 4.91 | 186,081 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,433 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,258 |
| Countries that End in I | 0 | - | 4.94 | 135,305 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,599 |
