| Countries by Satellite Image #1 | 0 | - | 4.87 | 129,396 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 75,738 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,390 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 112,946 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 88,744 |
| Flags with the Most Stars | 0 | - | 4.91 | 105,730 |
| Flags that are Red & White Only | 0 | - | 4.97 | 130,821 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 125,463 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 35,205 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 35,379 |
| Four Countries with Similar Flags #1 | 0 | - | 4.98 | 43,221 |
| Country Flags with the Most Red | 0 | - | 4.97 | 91,331 |
| Country Flags with the Most Blue | 0 | - | 4.91 | 79,381 |
| Country Flags with the Most Green | 0 | - | 4.96 | 79,870 |
| Country Flags with the Most Orange | 0 | - | 4.97 | 81,305 |
| Country Flags with the Most Yellow | 0 | - | 4.93 | 77,895 |
| Country Flags with the Most Black | 0 | - | 4.94 | 86,157 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 43,855 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 81,740 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 62,709 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 48,335 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,224 |
| World Coats of Arms | 0 | - | 4.99 | 55,399 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 82,026 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 33,559 |
| Countries by Partial Flag Images #6 | 0 | - | 4.93 | 27,121 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 26,655 |
| Countries by Picture #1 | 0 | - | 4.51 | 89,516 |
| Countries by Picture #3 | 0 | - | 4.52 | 54,493 |
| Random Flag to Country | 0 | - | 4.99 | 505,124 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,890,525 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 93,965 |
| Countries by Bordering Flags #2 | 0 | - | 4.87 | 75,323 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,340 |
| Merged Countries #2 | 0 | - | 4.96 | 89,575 |
| Merged Countries #4 | 0 | - | 4.87 | 84,238 |
| Merged Countries #6 | 0 | - | 4.89 | 65,121 |
| Merged Countries #7 | 0 | - | 4.93 | 74,268 |
| Pixelated World Map | 0 | - | 5.00 | 128,147 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,067,279 |
| Country Shape Quiz #1 | 0 | - | 4.92 | 836,452 |
| Country Shape Quiz #2 | 0 | - | 4.96 | 376,739 |
| Every Country Shape | 0 | - | 5.00 | 381,567 |
| Countries by Picture #2 | 0 | - | 4.37 | 64,185 |
| Countries by Picture #5 | 0 | - | 4.27 | 39,789 |
| Countries by Picture #6 | 0 | - | 4.17 | 33,615 |
| Former Flags | 0 | - | 4.98 | 81,424 |
| Members of the Arab League | 0 | - | 4.85 | 61,746 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,795 |
| Himalayan Countries | 0 | - | 4.94 | 104,660 |
| Andean Countries | 0 | - | 4.91 | 58,028 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,956 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,272 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,617 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,008 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,254 |
| Danube Countries | 0 | - | 4.97 | 56,611 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,647 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,813 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,124 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,308 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,460 |
| European Landlocked Countries | 0 | - | 4.99 | 115,471 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,284 |
| Countries with the Most Species | 0 | - | 4.99 | 89,511 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,304 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,660 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,988 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,216 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,387 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,666 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,091 |
| Countries in the Alps | 0 | - | 4.84 | 102,568 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,241 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,964 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,531 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,187 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,496 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,568 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,110 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,288 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,603 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,380 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,552 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,641 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,426 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,905 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,413 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,888 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,296 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,340 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,877 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,732 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,248 |
| Largest Countries By Category | 0 | - | 4.96 | 144,791 |
| Countries by Countries | 0 | - | 4.96 | 54,593 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,308 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,656 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,122 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,910 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,171 |
| Island Countries Quiz | 0 | - | 4.99 | 660,142 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,100 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 64,127 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,176 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 43,805 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 51,553 |
| Similar Flags #1 | 0 | - | 4.72 | 110,716 |
| Similar Flags #2 | 0 | - | 4.79 | 112,709 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,212 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,222 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,378 |
| Northernmost Countries | 0 | - | 4.99 | 326,957 |
| Countries of South America | 0 | - | 5.00 | 792,439 |
| Countries of Oceania | 0 | - | 5.00 | 892,696 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,148,426 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,570,841 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 145,825 |
| World Map without 12 Countries | 0 | - | 4.97 | 315,163 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 151,527 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 120,888 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 68,904 |
| Country Shape Quiz #3 | 0 | - | 4.92 | 267,340 |
| Country Shape Quiz #4 | 0 | - | 4.92 | 197,639 |
| Country Shape Quiz #5 | 0 | - | 4.91 | 139,086 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 91,038 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 99,613 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 109,484 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 97,570 |
| Country Shapes in the World Map #6 | 0 | - | 4.97 | 72,301 |
| Country Shapes in the World Map #7 | 0 | - | 4.98 | 49,728 |
| Country Shapes in the World Map #5 | 0 | - | 4.97 | 76,498 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 309,591 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,730 |
| Countries with Megacities | 0 | - | 4.99 | 196,987 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,335 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,828 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,217 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,785 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,665 |
| Countries by Official Language | 0 | - | 4.96 | 171,199 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,047 |
| Countries in their Native Language | 0 | - | 4.98 | 178,205 |
| Independence from Whom | 0 | - | 4.99 | 185,418 |
| Subdivisions by Country | 0 | - | 4.82 | 46,418 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,354 |
| Megadiverse Countries | 0 | - | 4.96 | 125,267 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,285 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,633 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,362 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,506 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,102 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,805 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,067 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,005 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,323 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,750 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,564 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,963 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,936 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,506 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,231 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 82,048 |
| World Map Quiz | 0 | - | 4.90 | 49,301 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 68,836 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 65,813 |
| Countries Connected in the World Map #3 | 0 | - | 4.96 | 65,241 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 141,820 |
| Countries in a Strip of the World Map | 0 | - | 4.98 | 64,255 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,431 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 48,225 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,601 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,842 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,936 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,446 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,260 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,528 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,226 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,901 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,394 |
| Widest Countries East to West | 0 | - | 4.93 | 119,312 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,807 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,937 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,628 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,391 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,780 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,108 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,440 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,035 |
| Countries with Double Letters | 0 | - | 4.96 | 68,270 |
| Countries that End in N | 0 | - | 4.94 | 132,609 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,632 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,938 |
| Countries with W | 0 | - | 4.96 | 122,651 |
| Countries with Z | 0 | - | 4.98 | 244,327 |
| Countries with Letters Missing | 0 | - | 4.97 | 162,635 |
| Countries That End in U | 0 | - | 4.95 | 107,525 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,401 |
| Countries that End in O | 0 | - | 4.92 | 146,892 |
