| All Country Flags of the World | 0 | - | 5.00 | 3,656,846 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,536,021 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,298 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,038 |
| Flags with Crescents | 0 | - | 4.98 | 169,341 |
| Country Flag Trivia | 0 | - | 4.81 | 56,935 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,619 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,386 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,246 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,196 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,144 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,726 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,503 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,745 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,248 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,131 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,162 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,859 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,974 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,427 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,398 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,331 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,429 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,535 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,314 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,998 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,438 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,672 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,057 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,305 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,346 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,666 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,887 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,986 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,791 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,401 |
| Flags of North and South America | 0 | - | 4.99 | 372,568 |
| Flags to Languages | 0 | - | 4.95 | 173,532 |
| Former Flags | 0 | - | 4.97 | 107,614 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,904 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,480 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,382 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,999 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,930 |
| 20 Random Country Flags | 0 | - | 4.99 | 611,377 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,659 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,091 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,425 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,441 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,223 |
| Flag Maths | 0 | - | 4.64 | 57,754 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,459 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,422 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,776 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,718 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,473 |
| World Coats of Arms | 0 | - | 4.99 | 64,432 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,455 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,665 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,261 |
| Similar Flags #1 | 0 | - | 4.75 | 129,922 |
| Similar Flags #2 | 0 | - | 4.74 | 137,217 |
| Emoji Flags | 0 | - | 4.35 | 44,055 |
| Countries by Road Signs | 0 | - | 4.98 | 53,729 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,535 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,237 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,612 |
| Select the World Flags | 0 | - | 4.27 | 37,705 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,893 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,875 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,613 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,351 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,045 |
| Countries by Satellite Image #4 | 0 | - | 4.62 | 67,136 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,889 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,456 |
| Countries by Picture #1 | 0 | - | 4.53 | 99,361 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,350 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,779 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,219 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,678 |
| Pixelated World Map | 0 | - | 5.00 | 143,291 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,400 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,038 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,571 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,421 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,181 |
| Cities by Satellite #1 | 0 | - | 4.37 | 80,991 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,054 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,325 |
| Countries by Picture #2 | 0 | - | 4.37 | 70,050 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,407 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,106 |
| Geography by Picture - B | 0 | - | 4.42 | 55,589 |
| Geography by Picture - H | 0 | - | 4.50 | 58,211 |
| Geography by Picture - N | 0 | - | 4.45 | 42,191 |
| Geography by Picture - R | 0 | - | 4.56 | 41,012 |
| Geography by Picture - T | 0 | - | 4.54 | 57,826 |
| Flags of Oceania | 0 | - | 5.00 | 258,663 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,137 |
| Flags of WW1 | 0 | - | 4.60 | 38,343 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 62,959 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,774 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,103 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,651 |
| Boundary Waters | 0 | - | 4.92 | 88,426 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,123 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,002 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,322 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,408 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,335 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,392,973 |
| Landlocked Countries | 0 | - | 4.99 | 419,681 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,044 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,435 |
| Satellite Images #1 | 0 | - | 4.47 | 129,335 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,274 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,890 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,894 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,964 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,937 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,817 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,390 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,828 |
| Merged Countries #2 | 0 | - | 4.96 | 98,993 |
| Merged Countries #6 | 0 | - | 4.90 | 73,202 |
| Merged Countries #7 | 0 | - | 4.93 | 82,548 |
| Geography by Picture - A | 0 | - | 4.39 | 60,231 |
| Geography by Picture - D | 0 | - | 4.15 | 45,648 |
| Geography by Picture - F | 0 | - | 4.31 | 50,986 |
| Geography by Picture - G | 0 | - | 4.38 | 47,938 |
| Geography by Picture - J | 0 | - | 4.16 | 38,455 |
| Geography by Picture - K | 0 | - | 4.29 | 33,120 |
| Geography by Picture - C | 0 | - | 4.31 | 57,055 |
| Geography by Picture - L | 0 | - | 4.37 | 58,941 |
| Geography by Picture - M | 0 | - | 4.14 | 40,446 |
| Geography by Picture - P | 0 | - | 4.24 | 42,426 |
| Geography by Picture - S | 0 | - | 4.38 | 47,034 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,335 |
| Islands by Picture | 0 | - | 4.29 | 106,849 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,541 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,727 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,816 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,036 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,644 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,816 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,603 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,814 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,697 |
| Island Countries | 0 | - | 4.99 | 710,074 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,310 |
| Himalayan Countries | 0 | - | 4.95 | 137,744 |
| Andean Countries | 0 | - | 4.95 | 84,087 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,325 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,862 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,959 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,439 |
| Danube Countries | 0 | - | 4.97 | 71,737 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,660 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,137 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,786 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,868 |
| European Landlocked Countries | 0 | - | 4.99 | 146,861 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,235 |
| Countries with the Most Species | 0 | - | 4.99 | 103,000 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,392 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,457 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,618 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,369 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,042 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,438 |
| Countries in the Alps | 0 | - | 4.87 | 117,812 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,214 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,531 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,467 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,267 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,198 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,778 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,370 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,261 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,020 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,369 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,992 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,257 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,274 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,343 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,116 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,622 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,651 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,720 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,434 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,041 |
| Largest Countries By Category | 0 | - | 4.97 | 157,783 |
| Countries by Countries | 0 | - | 4.96 | 62,923 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,324 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,486 |
| Merged Country Flags | 0 | - | 4.88 | 106,681 |
