| All Country Flags of the World | 0 | - | 5.00 | 3,061,940 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,391,492 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,016,087 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 680,875 |
| Flags with Crescents | 0 | - | 4.98 | 146,570 |
| Country Flag Trivia | 0 | - | 4.81 | 45,393 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.99 | 78,188 |
| Country Flags with the Union Jack | 0 | - | 4.83 | 57,686 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.82 | 43,273 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 115,075 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 90,481 |
| Flags with the Most Stars | 0 | - | 4.90 | 108,488 |
| Flags that are Red & White Only | 0 | - | 4.97 | 132,480 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 128,030 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 37,640 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 36,626 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 44,531 |
| Country Flags with the Most Red | 0 | - | 4.97 | 93,793 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 81,168 |
| Country Flags with the Most Green | 0 | - | 4.95 | 81,856 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 83,306 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 89,396 |
| Country Flags with the Most Black | 0 | - | 4.94 | 87,801 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 56,164 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 44,604 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 82,882 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 63,762 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 49,475 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 82,746 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 316,595 |
| Flags to Languages | 0 | - | 4.95 | 160,745 |
| Former Flags | 0 | - | 4.97 | 82,947 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 35,146 |
| Countries by Partial Flag Images #6 | 0 | - | 4.90 | 28,563 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 27,180 |
| Random Flag to Country | 0 | - | 4.99 | 516,530 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 95,170 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 76,333 |
| Flags of the Mediterranean | 0 | - | 4.93 | 126,000 |
| Country Flags Multiple Choice | 0 | - | 4.98 | 117,099 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 131,649 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 76,694 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,992 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,906 |
| World Coats of Arms | 0 | - | 4.99 | 56,761 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.83 | 87,734 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 52,176 |
| Similar Flags #1 | 0 | - | 4.75 | 112,722 |
| Similar Flags #2 | 0 | - | 4.78 | 114,943 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 127,888 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 42,708 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 153,712 |
| Emoji Flags | 0 | - | 4.34 | 41,139 |
| Countries by Road Signs | 0 | - | 4.98 | 46,342 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 54,869 |
| Islands by Shape #2 | 0 | - | 4.87 | 45,359 |
| Select the World Flags | 0 | - | 4.31 | 33,947 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.76 | 23,941 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 67,866 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.65 | 54,936 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,929 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 65,024 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,941 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 44,249 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,704 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,562 |
| Countries by Picture #1 | 0 | - | 4.51 | 91,117 |
| Countries by Picture #3 | 0 | - | 4.52 | 55,291 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 43,056 |
| Name a Valid Country Flag | 0 | - | 4.56 | 49,196 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,067,979 |
| Flags of Asia Quiz | 0 | - | 4.99 | 535,537 |
| Pixelated World Map | 0 | - | 5.00 | 130,715 |
| Flags of Africa Quiz | 0 | - | 4.99 | 396,938 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 68,229 |
| Satellite Images - Europe | 0 | - | 4.44 | 83,066 |
| European Cities by Picture #2 | 0 | - | 4.44 | 35,188 |
| Boundary Waters | 0 | - | 4.93 | 82,070 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,506 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 47,816 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 52,639 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 61,624 |
| Cities by Satellite #1 | 0 | - | 4.37 | 72,075 |
| Cities by Satellite #2 | 0 | - | 4.47 | 23,086 |
| Countries by Picture #4 | 0 | - | 4.17 | 42,409 |
| Countries by Picture #2 | 0 | - | 4.37 | 65,180 |
| Countries by Picture #5 | 0 | - | 4.27 | 40,390 |
| Countries by Picture #6 | 0 | - | 4.14 | 34,015 |
| Geography by Picture - H | 0 | - | 4.51 | 55,653 |
| Geography by Picture - N | 0 | - | 4.46 | 39,962 |
| Geography by Picture - R | 0 | - | 4.54 | 38,953 |
| Geography by Picture - T | 0 | - | 4.56 | 55,278 |
| Flags of Oceania | 0 | - | 5.00 | 220,885 |
| Three Band Flags of Europe | 0 | - | 4.97 | 174,454 |
| Pixelated Africa Map | 0 | - | 4.98 | 89,857 |
| Pixelated Asia Map | 0 | - | 4.90 | 64,526 |
| Pixelated Europe Map | 0 | - | 4.90 | 111,080 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,812,423 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,824 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,993 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 378,573 |
| Satellite Images Quiz #1 | 0 | - | 4.47 | 123,743 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 104,516 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 85,076 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 46,334 |
| Satellite Images Quiz #6 | 0 | - | 4.53 | 36,098 |
| Cities by Picture #1 | 0 | - | 4.70 | 78,432 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.51 | 23,683 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,331 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 85,729 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,943 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,657 |
| World Capitals Quiz | 0 | - | 5.00 | 4,581,664 |
| Members of the Arab League | 0 | - | 4.86 | 66,522 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,684 |
| Himalayan Countries | 0 | - | 4.94 | 108,622 |
| Andean Countries | 0 | - | 4.91 | 60,332 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,513 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,933 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,565 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,898 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,333 |
| Danube Countries | 0 | - | 4.96 | 57,265 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,269 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,327 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,809 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,491 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,137 |
| European Landlocked Countries | 0 | - | 4.99 | 137,274 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,894 |
| Countries with the Most Species | 0 | - | 4.99 | 90,078 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,433 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,055 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,343 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,121 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,157 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,984 |
| Countries in the Alps | 0 | - | 4.84 | 103,956 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,521 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,708 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,344 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,447 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,969 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,408 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,616 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,822 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,735 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,468 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,234 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,062 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,053 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,644 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,731 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,301 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,739 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,005 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,106 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,035 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,608 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,876 |
| Largest Countries By Category | 0 | - | 4.97 | 146,545 |
| Countries by Countries | 0 | - | 4.95 | 55,680 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,178,321 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,645 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,251 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,166 |
| All Countries by Population With a Map | 0 | - | 4.99 | 65,252 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 78,086 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,724 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,233,109 |
| Merged Countries #2 | 0 | - | 4.96 | 90,831 |
| Merged Countries #4 | 0 | - | 4.86 | 85,840 |
| Merged Countries #6 | 0 | - | 4.90 | 66,318 |
| Merged Countries #7 | 0 | - | 4.94 | 75,508 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,371 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,748 |
| Geography by Picture - A | 0 | - | 4.35 | 57,380 |
| Geography by Picture - B | 0 | - | 4.37 | 52,874 |
| Geography by Picture - D | 0 | - | 4.13 | 43,519 |
| Geography by Picture - F | 0 | - | 4.29 | 48,698 |
| Geography by Picture - G | 0 | - | 4.39 | 45,741 |
| Geography by Picture - J | 0 | - | 4.14 | 36,681 |
| Geography by Picture - C | 0 | - | 4.28 | 54,622 |
| Geography by Picture - L | 0 | - | 4.34 | 56,284 |
| Geography by Picture - M | 0 | - | 4.11 | 38,675 |
| Geography by Picture - P | 0 | - | 4.26 | 40,489 |
| Geography by Picture - S | 0 | - | 4.35 | 44,940 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,612 |
| Who Controls It? #1 | 0 | - | 4.82 | 45,907 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,434 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,952 |
| Longest International Borders | 0 | - | 4.99 | 236,809 |
| Countries with Three Borders | 0 | - | 4.96 | 32,178 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,933 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,458 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.87 | 34,828 |
| Demonym of Every Country | 0 | - | 4.91 | 50,891 |
| Islands by Shape #1 | 0 | - | 4.28 | 71,847 |
| Islands by Picture | 0 | - | 4.29 | 94,254 |
