| All Country Flags of the World | 0 | - | 5.00 | 3,652,091 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,535,171 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,897 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,764 |
| Flags with Crescents | 0 | - | 4.98 | 169,193 |
| Country Flag Trivia | 0 | - | 4.81 | 56,854 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,511 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,297 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,127 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,147 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,071 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,665 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,383 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,651 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,157 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,096 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,072 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,775 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,866 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,373 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,351 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,256 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,371 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,480 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,238 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,943 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,396 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,644 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,029 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,259 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,308 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,611 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,833 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,929 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,726 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,379 |
| Flags of North and South America | 0 | - | 4.99 | 372,234 |
| Flags to Languages | 0 | - | 4.95 | 173,457 |
| Former Flags | 0 | - | 4.97 | 107,541 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,884 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,431 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,340 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,929 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,902 |
| 20 Random Country Flags | 0 | - | 4.99 | 610,893 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,616 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,049 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,344 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,374 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,088 |
| Flag Maths | 0 | - | 4.64 | 57,747 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,367 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,391 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,751 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,681 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,455 |
| World Coats of Arms | 0 | - | 4.99 | 64,370 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,348 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,606 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,124 |
| Similar Flags #1 | 0 | - | 4.75 | 129,841 |
| Similar Flags #2 | 0 | - | 4.74 | 137,139 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,792 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,860 |
| Emoji Flags | 0 | - | 4.35 | 44,034 |
| Countries by Road Signs | 0 | - | 4.98 | 53,681 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,473 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,908 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,217 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,465 |
| Select the World Flags | 0 | - | 4.27 | 37,683 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,827 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,848 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,540 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,325 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,008 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,115 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,871 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,431 |
| Countries by Picture #1 | 0 | - | 4.53 | 99,328 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,326 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,743 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,241,002 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,941 |
| Pixelated World Map | 0 | - | 5.00 | 143,205 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,267 |
| Flags of Africa Quiz | 0 | - | 5.00 | 469,749 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,974 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,547 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,360 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,164 |
| Cities by Satellite #1 | 0 | - | 4.37 | 80,925 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,038 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,307 |
| Countries by Picture #2 | 0 | - | 4.37 | 70,024 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,388 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,093 |
| Geography by Picture - B | 0 | - | 4.42 | 55,571 |
| Geography by Picture - H | 0 | - | 4.50 | 58,192 |
| Geography by Picture - N | 0 | - | 4.45 | 42,180 |
| Geography by Picture - R | 0 | - | 4.56 | 41,001 |
| Geography by Picture - T | 0 | - | 4.54 | 57,811 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,382 |
| Flags of Oceania | 0 | - | 5.00 | 258,398 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,017 |
| Flags of WW1 | 0 | - | 4.60 | 38,311 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,147 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,919 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,712 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,042 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,566 |
| Boundary Waters | 0 | - | 4.92 | 88,393 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,103 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,947 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,229 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,366 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,296 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,355,156 |
| Landlocked Countries | 0 | - | 4.99 | 419,236 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 568,778 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,416 |
| Satellite Images #1 | 0 | - | 4.47 | 129,311 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,252 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,873 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,874 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,949 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,886 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,811 |
| World Capitals Quiz | 0 | - | 5.00 | 5,065,499 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,758,658 |
| Merged Countries #2 | 0 | - | 4.96 | 98,943 |
| Merged Countries #6 | 0 | - | 4.90 | 73,157 |
| Merged Countries #7 | 0 | - | 4.93 | 82,495 |
| Geography by Picture - A | 0 | - | 4.39 | 60,213 |
| Geography by Picture - D | 0 | - | 4.15 | 45,628 |
| Geography by Picture - F | 0 | - | 4.31 | 50,966 |
| Geography by Picture - G | 0 | - | 4.38 | 47,922 |
| Geography by Picture - J | 0 | - | 4.16 | 38,444 |
| Geography by Picture - K | 0 | - | 4.29 | 33,108 |
| Geography by Picture - C | 0 | - | 4.31 | 57,041 |
| Geography by Picture - L | 0 | - | 4.37 | 58,920 |
| Geography by Picture - M | 0 | - | 4.14 | 40,431 |
| Geography by Picture - P | 0 | - | 4.24 | 42,411 |
| Geography by Picture - S | 0 | - | 4.38 | 47,022 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,362 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,319 |
| Islands by Picture | 0 | - | 4.29 | 106,789 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,514 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,662 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,717 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,963 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,252 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,769 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,583,546 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,684 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,260 |
| Island Countries | 0 | - | 4.99 | 709,890 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,124 |
| Himalayan Countries | 0 | - | 4.95 | 137,544 |
| Andean Countries | 0 | - | 4.95 | 84,000 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,270 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,741 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,888 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,390 |
| Danube Countries | 0 | - | 4.97 | 71,700 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,608 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,093 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,705 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,779 |
| European Landlocked Countries | 0 | - | 4.99 | 146,809 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,172 |
| Countries with the Most Species | 0 | - | 4.99 | 102,946 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,318 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,437 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,598 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,328 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,005 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,392 |
| Countries in the Alps | 0 | - | 4.87 | 117,738 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,167 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,427 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,440 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,026 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,138 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,738 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,315 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,218 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,982 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,580 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,502 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,351 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,955 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,211 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,237 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,249 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,084 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,584 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,563 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,518 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,294 |
