| All Country Flags of the World | 0 | - | 5.00 | 3,652,745 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,535,288 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,948 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,803 |
| Flags with Crescents | 0 | - | 4.98 | 169,210 |
| Country Flag Trivia | 0 | - | 4.81 | 56,868 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,526 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,307 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,148 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,153 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,078 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,674 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,401 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,660 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,169 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,101 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,086 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,790 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,881 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,383 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,355 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,267 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,381 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,488 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,246 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,951 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,404 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,649 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,031 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,269 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,313 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,618 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,839 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,935 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,735 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,382 |
| Flags of North and South America | 0 | - | 4.99 | 372,286 |
| Flags to Languages | 0 | - | 4.95 | 173,471 |
| Former Flags | 0 | - | 4.97 | 107,553 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,886 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,439 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,345 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,940 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,906 |
| 20 Random Country Flags | 0 | - | 4.99 | 611,015 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,622 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,061 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,358 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,383 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,107 |
| Flag Maths | 0 | - | 4.64 | 57,749 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,384 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,393 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,754 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,683 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,456 |
| World Coats of Arms | 0 | - | 4.99 | 64,379 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,362 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,615 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,148 |
| Similar Flags #1 | 0 | - | 4.75 | 129,852 |
| Similar Flags #2 | 0 | - | 4.74 | 137,150 |
| Emoji Flags | 0 | - | 4.35 | 44,036 |
| Countries by Road Signs | 0 | - | 4.98 | 53,686 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,479 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,225 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,485 |
| Select the World Flags | 0 | - | 4.27 | 37,684 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,840 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,853 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,549 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,330 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,011 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,118 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,877 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,436 |
| Countries by Picture #1 | 0 | - | 4.53 | 99,337 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,328 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,749 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,199 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,065 |
| Pixelated World Map | 0 | - | 5.00 | 143,215 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,858 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,983 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,553 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,369 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,167 |
| Cities by Satellite #1 | 0 | - | 4.37 | 80,936 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,038 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,308 |
| Countries by Picture #2 | 0 | - | 4.37 | 70,026 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,389 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,093 |
| Geography by Picture - B | 0 | - | 4.42 | 55,575 |
| Geography by Picture - H | 0 | - | 4.50 | 58,196 |
| Geography by Picture - N | 0 | - | 4.45 | 42,181 |
| Geography by Picture - R | 0 | - | 4.56 | 41,002 |
| Geography by Picture - T | 0 | - | 4.54 | 57,813 |
| Flags of Oceania | 0 | - | 5.00 | 258,448 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,040 |
| Flags of WW1 | 0 | - | 4.60 | 38,319 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,926 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,718 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,052 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,577 |
| Boundary Waters | 0 | - | 4.92 | 88,399 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,105 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,956 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,241 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,374 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,300 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,360,214 |
| Landlocked Countries | 0 | - | 4.99 | 419,307 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 568,942 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,418 |
| Satellite Images #1 | 0 | - | 4.47 | 129,317 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,256 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,875 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,879 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,951 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,894 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,812 |
| World Capitals Quiz | 0 | - | 5.00 | 5,065,905 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,759,088 |
| Merged Countries #2 | 0 | - | 4.96 | 98,946 |
| Merged Countries #6 | 0 | - | 4.90 | 73,164 |
| Merged Countries #7 | 0 | - | 4.93 | 82,503 |
| Geography by Picture - A | 0 | - | 4.39 | 60,215 |
| Geography by Picture - D | 0 | - | 4.15 | 45,634 |
| Geography by Picture - F | 0 | - | 4.31 | 50,972 |
| Geography by Picture - G | 0 | - | 4.38 | 47,925 |
| Geography by Picture - J | 0 | - | 4.16 | 38,447 |
| Geography by Picture - K | 0 | - | 4.29 | 33,111 |
| Geography by Picture - C | 0 | - | 4.31 | 57,045 |
| Geography by Picture - L | 0 | - | 4.37 | 58,924 |
| Geography by Picture - M | 0 | - | 4.14 | 40,435 |
| Geography by Picture - P | 0 | - | 4.24 | 42,413 |
| Geography by Picture - S | 0 | - | 4.38 | 47,025 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,322 |
| Islands by Picture | 0 | - | 4.29 | 106,795 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,518 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,679 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,735 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,973 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,315 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,780 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,583,721 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,697 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,310 |
| Island Countries | 0 | - | 4.99 | 709,915 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,148 |
| Himalayan Countries | 0 | - | 4.95 | 137,568 |
| Andean Countries | 0 | - | 4.95 | 84,017 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,280 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,757 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,896 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,397 |
| Danube Countries | 0 | - | 4.97 | 71,702 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,612 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,098 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,714 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,790 |
| European Landlocked Countries | 0 | - | 4.99 | 146,813 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,182 |
| Countries with the Most Species | 0 | - | 4.99 | 102,953 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,330 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,439 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,598 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,334 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,008 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,399 |
| Countries in the Alps | 0 | - | 4.87 | 117,749 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,179 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,440 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,444 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,039 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,146 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,744 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,324 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,220 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,987 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,585 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,506 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,356 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,961 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,218 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,242 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,258 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,089 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,590 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,593 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,543 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,320 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,017 |
| Largest Countries By Category | 0 | - | 4.97 | 157,700 |
| Countries by Countries | 0 | - | 4.96 | 62,875 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,261 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,172 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,479 |
| Merged Country Flags | 0 | - | 4.88 | 106,633 |
