| All Country Flags of the World | 0 | - | 5.00 | 2,925,350 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,351,773 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 995,223 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 666,944 |
| Flags with Crescents | 0 | - | 4.98 | 141,724 |
| Country Flag Trivia | 0 | - | 4.87 | 42,904 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 74,794 |
| Country Flags with the Union Jack | 0 | - | 4.84 | 55,150 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 41,170 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 112,019 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 87,917 |
| Flags with the Most Stars | 0 | - | 4.90 | 104,728 |
| Flags that are Red & White Only | 0 | - | 4.97 | 130,131 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 124,155 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 34,087 |
| Four Countries with Similar Flags #2 | 0 | - | 4.88 | 34,799 |
| Four Countries with Similar Flags #1 | 0 | - | 4.98 | 42,582 |
| Country Flags with the Most Red | 0 | - | 4.97 | 89,732 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 78,141 |
| Country Flags with the Most Green | 0 | - | 4.95 | 78,337 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 79,935 |
| Country Flags with the Most Yellow | 0 | - | 4.92 | 76,744 |
| Country Flags with the Most Black | 0 | - | 4.94 | 84,977 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 54,976 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 43,537 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 81,235 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 62,244 |
| Countries by Partial Flag Images #5 | 0 | - | 4.97 | 47,853 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 81,690 |
| Flags to Languages | 0 | - | 4.95 | 134,480 |
| Former Flags | 0 | - | 4.98 | 80,777 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 32,815 |
| Countries by Partial Flag Images #6 | 0 | - | 4.92 | 26,517 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 306,806 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 26,306 |
| Random Flag to Country | 0 | - | 4.99 | 500,172 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 93,442 |
| Countries by Bordering Flags #2 | 0 | - | 4.89 | 74,925 |
| Flags of the Mediterranean | 0 | - | 4.94 | 123,160 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 113,518 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.84 | 85,635 |
| Random Flags Quiz | 0 | - | 4.41 | 253,899 |
| Countries by Satellite Image #1 | 0 | - | 4.87 | 128,370 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 75,335 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,149 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 124,425 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 57,871 |
| World Coats of Arms | 0 | - | 4.99 | 54,965 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 39,592 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 149,150 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 51,273 |
| Similar Flags #1 | 0 | - | 4.72 | 109,971 |
| Similar Flags #2 | 0 | - | 4.79 | 111,788 |
| Emoji Flags | 0 | - | 4.34 | 40,340 |
| Countries by Road Signs | 0 | - | 4.98 | 44,783 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 53,246 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.64 | 53,726 |
| Select the World Flags | 0 | - | 4.29 | 32,853 |
| Islands by Shape #2 | 0 | - | 4.87 | 44,782 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.77 | 23,307 |
| Random Circular Cutouts of the World Map | 0 | - | 4.97 | 65,748 |
| Name a Valid Country Flag | 0 | - | 4.57 | 45,608 |
| Countries by Satellite Image #3 | 0 | - | 4.66 | 65,746 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 63,750 |
| Countries by Satellite Image #4 | 0 | - | 4.72 | 61,842 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 43,572 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.76 | 41,029 |
| Countries by Coat of Arms #2 | 0 | - | 4.77 | 32,090 |
| Countries by Picture #1 | 0 | - | 4.51 | 88,531 |
| Countries by Picture #3 | 0 | - | 4.52 | 54,126 |
| Guess the Country by a Picture Hint | 0 | - | 4.41 | 41,698 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.41 | 65,803 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,034,425 |
| Flags of Asia Quiz | 0 | - | 4.99 | 519,711 |
| Pixelated World Map | 0 | - | 5.00 | 127,086 |
| Flags of Africa Quiz | 0 | - | 4.99 | 381,993 |
| Satellite Images - Europe | 0 | - | 4.44 | 80,630 |
| European Cities by Picture #2 | 0 | - | 4.47 | 34,282 |
| Flags of Oceania | 0 | - | 5.00 | 213,013 |
| Three Band Flags of Europe | 0 | - | 4.97 | 159,765 |
| Pixelated Africa Map | 0 | - | 4.98 | 87,183 |
| Pixelated Asia Map | 0 | - | 4.89 | 62,617 |
| Pixelated Europe Map | 0 | - | 4.90 | 108,625 |
| Cities by Satellite #1 | 0 | - | 4.36 | 69,682 |
| Cities by Satellite #2 | 0 | - | 4.46 | 22,626 |
| Countries by Picture #4 | 0 | - | 4.17 | 41,557 |
| Countries by Picture #2 | 0 | - | 4.37 | 63,684 |
| Countries by Picture #5 | 0 | - | 4.26 | 39,525 |
| Countries by Picture #6 | 0 | - | 4.17 | 33,402 |
| Geography by Picture - G | 0 | - | 4.41 | 45,091 |
| Geography by Picture - H | 0 | - | 4.52 | 54,868 |
| Geography by Picture - N | 0 | - | 4.46 | 39,321 |
| Geography by Picture - R | 0 | - | 4.55 | 38,369 |
| Geography by Picture - T | 0 | - | 4.64 | 54,424 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.54 | 23,384 |
| Boundary Waters | 0 | - | 4.93 | 80,513 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 73,940 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 43,623 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 50,595 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,527,691 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 318,289 |
| Merged Countries #2 | 0 | - | 4.96 | 89,004 |
| Merged Countries #4 | 0 | - | 4.87 | 83,569 |
| Merged Countries #6 | 0 | - | 4.88 | 64,570 |
| Merged Countries #7 | 0 | - | 4.93 | 73,761 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 122,215 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 103,250 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 83,817 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 45,425 |
| Satellite Images Quiz #6 | 0 | - | 4.52 | 35,341 |
| Cities by Picture #1 | 0 | - | 4.66 | 76,374 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 29,836 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,914 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 82,996 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,318 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,957 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.96 | 108,536 |
| World Capitals Quiz | 0 | - | 5.00 | 4,465,334 |
| Countries on the Equator | 0 | - | 4.83 | 132,984 |
| Members of the Arab League | 0 | - | 4.82 | 59,574 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,340 |
| Himalayan Countries | 0 | - | 4.95 | 102,694 |
| Andean Countries | 0 | - | 4.90 | 57,075 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,916 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,638 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,971 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,607 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,800 |
| Danube Countries | 0 | - | 4.97 | 56,387 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,434 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,627 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,458 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,866 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,476 |
| European Landlocked Countries | 0 | - | 4.99 | 114,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,835 |
| Countries with the Most Species | 0 | - | 4.99 | 89,107 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,908 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,476 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,841 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,822 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,154 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,490 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,742 |
| Countries in the Alps | 0 | - | 4.83 | 101,941 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,744 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,957 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,177 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,793 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,436 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,128 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,124 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,806 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,095 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,223 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,966 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,361 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,441 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,039 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,554 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,043 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 60,995 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,008 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 193,237 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,595 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,003 |
| Largest Countries By Category | 0 | - | 4.96 | 144,016 |
| Countries by Countries | 0 | - | 4.96 | 54,165 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,026,570 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,807 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,422 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,470 |
| All Countries by Population With a Map | 0 | - | 4.98 | 60,859 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 76,076 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,473 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 133,483 |
| Western Europe Map Quiz | 0 | - | 4.86 | 88,876 |
| Geography by Picture - A | 0 | - | 4.35 | 56,555 |
| Geography by Picture - B | 0 | - | 4.36 | 52,125 |
| Geography by Picture - D | 0 | - | 4.10 | 42,968 |
| Geography by Picture - F | 0 | - | 4.25 | 48,030 |
| Geography by Picture - J | 0 | - | 4.14 | 36,158 |
| Geography by Picture - C | 0 | - | 4.28 | 53,945 |
| Geography by Picture - L | 0 | - | 4.34 | 55,505 |
| Geography by Picture - M | 0 | - | 4.11 | 38,191 |
| Geography by Picture - P | 0 | - | 4.28 | 39,915 |
| Geography by Picture - S | 0 | - | 4.35 | 44,283 |
| Satellite Images - Island Chains | 0 | - | 4.42 | 56,724 |
| Islands by Satellite Image #1 | 0 | - | 4.72 | 61,569 |
| Landmarks Picture Quiz #1 | 0 | - | 4.20 | 358,893 |
| European Cities by Picture #1 | 0 | - | 4.24 | 24,393 |
| Tourist Attraction by Negative Review | 0 | - | 4.90 | 59,234 |
| Airline Logos | 0 | - | 4.43 | 126,616 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,289 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 180,258 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,260 |
| Longest International Borders | 0 | - | 4.99 | 232,939 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,487 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 39,440 |
