| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,306 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,360 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,739 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,736 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,330 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,423 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,905 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,703 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 78,020 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,633 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,570 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,628 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,512 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,558 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,357 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,943 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,353 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,225 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,585 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,235 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,606 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,851 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,928 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,910 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,155 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,702 |
| World Coats of Arms | 0 | - | 4.99 | 65,375 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,886 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,330 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,141 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,295 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,862 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,574 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,617 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,202 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,777 |
| 20 Random Country Flags | 0 | - | 4.99 | 621,025 |
| Countries of the World Quiz | 0 | - | 5.00 | 48,008,276 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,446 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,721 |
| Landlocked Countries | 0 | - | 4.99 | 427,725 |
| Merged Countries #2 | 0 | - | 4.96 | 100,010 |
| Merged Countries #4 | 0 | - | 4.81 | 94,225 |
| Merged Countries #6 | 0 | - | 4.90 | 73,938 |
| Merged Countries #7 | 0 | - | 4.93 | 83,285 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,608 |
| Pixelated World Map | 0 | - | 5.00 | 144,773 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,483 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,977 |
| Every Country Shape | 0 | - | 5.00 | 472,931 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,815,741 |
| Flags of North and South America | 0 | - | 4.99 | 378,499 |
| Former Flags | 0 | - | 4.97 | 108,885 |
| Sahara Desert Countries | 0 | - | 4.98 | 167,138 |
| Himalayan Countries | 0 | - | 4.93 | 141,024 |
| Andean Countries | 0 | - | 4.94 | 85,901 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 65,017 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,636 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,561 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,764 |
| Danube Countries | 0 | - | 4.97 | 72,609 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,876 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 87,026 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,537 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 151,018 |
| European Landlocked Countries | 0 | - | 4.99 | 147,823 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,609 |
| Countries with the Most Species | 0 | - | 4.99 | 103,672 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,715 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,835 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,976 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,963 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,178 |
| Countries in the Alps | 0 | - | 4.87 | 119,052 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,130 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,258 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,092 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,222 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,193 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,427 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,646 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,036 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,540 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,353 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,982 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,852 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,709 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,964 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,065 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,263 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,769 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,791 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,907 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,577 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,636 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,643 |
| Largest Countries By Category | 0 | - | 4.97 | 159,195 |
| Countries by Countries | 0 | - | 4.97 | 63,857 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,524 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,460 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,291 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 55,045 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 337,061 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,187 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,650 |
| Island Countries | 0 | - | 4.99 | 713,215 |
| Similar Flags #1 | 0 | - | 4.75 | 131,009 |
| Similar Flags #2 | 0 | - | 4.74 | 138,295 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,745 |
| Northernmost Countries | 0 | - | 4.99 | 364,846 |
| Countries of South America | 0 | - | 5.00 | 934,939 |
| Countries of Oceania | 0 | - | 5.00 | 1,066,315 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,894,714 |
| "Land" Countries | 0 | - | 4.98 | 339,176 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,598 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,141 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,168 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 175,044 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,725 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,398,547 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,647 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,791 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,156 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,514 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 40,526 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,880 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,320 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,277 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 123,151 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 109,075 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,242 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,772 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,487 |
| All Country Flags of the World | 0 | - | 5.00 | 3,729,216 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,660 |
| Countries with Megacities | 0 | - | 4.99 | 268,187 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,302 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,412 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,641 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,530 |
| Countries by Official Language | 0 | - | 4.95 | 196,335 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,090 |
| Countries in their Native Language | 0 | - | 4.99 | 200,045 |
| Independence from Whom | 0 | - | 4.99 | 213,543 |
| Subdivisions by Country | 0 | - | 4.87 | 50,682 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,757 |
| Megadiverse Countries | 0 | - | 4.96 | 149,784 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,221 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,596 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,852 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,273 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,551 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,962 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,380 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,658 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,215 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,299 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,899 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,521 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,532 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,250 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,674 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 72,015 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,899 |
| World Map Quiz | 0 | - | 4.81 | 65,984 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 160,181 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,423 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 78,090 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,317 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,783 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,319 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,864 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,670 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,636 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,293 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,764 |
| Countries With the Most Languages | 0 | - | 4.90 | 204,073 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,618 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,737 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,906 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,788 |
| Tallest Countries North to South | 0 | - | 4.85 | 131,018 |
| Widest Countries East to West | 0 | - | 4.92 | 130,908 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,637 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,473 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,587 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,197 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,495 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,655 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,547 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,934 |
| Countries with Double Letters | 0 | - | 4.96 | 97,784 |
| Countries that End in N | 0 | - | 4.95 | 172,785 |
| Countries with Five Letters | 0 | - | 4.96 | 284,842 |
| Countries with Six Letters | 0 | - | 4.94 | 215,119 |
| Countries with W | 0 | - | 4.96 | 161,425 |
| Countries with Z | 0 | - | 4.98 | 293,178 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,801 |
| Countries That End in U | 0 | - | 4.95 | 121,457 |
