| All Country Flags of the World | 0 | - | 5.00 | 3,709,516 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,989 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,545,232 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,829 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,191 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,699 |
| Flags with Crescents | 0 | - | 4.98 | 171,218 |
| Country Flag Trivia | 0 | - | 4.81 | 57,938 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,818 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,365 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,507 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,887 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,922 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,431 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,358 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,230 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,227 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,791 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,123 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,512 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,232 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,544 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,331 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,274 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,274 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,217 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,297 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,086 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,689 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,092 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,068 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,460 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,886 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,019 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,371 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,604 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,689 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,635 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,777 |
| Flags of North and South America | 0 | - | 4.99 | 376,631 |
| Flags to Languages | 0 | - | 4.95 | 174,440 |
| Former Flags | 0 | - | 4.97 | 108,504 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,214 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,973 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,208 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,334 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,212 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,553 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,287 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,949 |
| Flag Maths | 0 | - | 4.61 | 57,827 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,780 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,138 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,228 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,033 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,630 |
| World Coats of Arms | 0 | - | 4.99 | 65,086 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,489 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,808 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,639 |
| Similar Flags #1 | 0 | - | 4.75 | 130,718 |
| Similar Flags #2 | 0 | - | 4.74 | 138,018 |
| Emoji Flags | 0 | - | 4.35 | 44,268 |
| Countries by Road Signs | 0 | - | 4.98 | 54,311 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,894 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,065 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,502 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,242 |
| Select the World Flags | 0 | - | 4.28 | 37,973 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,503 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,146 |
| Name a Valid Country Flag | 0 | - | 4.70 | 76,948 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,753 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,460 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,506 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,113 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,691 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,352 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,041 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,197 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,256,802 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,692 |
| Pixelated World Map | 0 | - | 5.00 | 144,040 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,004 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,005 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,628 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,149 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,401 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,322 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,384 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,783 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,340 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,678 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,216 |
| Geography by Picture - B | 0 | - | 4.42 | 55,768 |
| Geography by Picture - H | 0 | - | 4.50 | 58,367 |
| Geography by Picture - N | 0 | - | 4.45 | 42,332 |
| Geography by Picture - R | 0 | - | 4.56 | 41,137 |
| Geography by Picture - T | 0 | - | 4.54 | 57,992 |
| Flags of Oceania | 0 | - | 5.00 | 262,439 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,487 |
| Flags of WW1 | 0 | - | 4.60 | 38,666 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,411 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,407 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,730 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,418 |
| Boundary Waters | 0 | - | 4.92 | 88,744 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,397 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,653 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,276 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,925 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,924 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,842,845 |
| Landlocked Countries | 0 | - | 4.99 | 425,206 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 586,948 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,768 |
| Satellite Images #1 | 0 | - | 4.47 | 129,940 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,630 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,187 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,199 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,182 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,527 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,891 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,313 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,801,216 |
| Merged Countries #2 | 0 | - | 4.96 | 99,846 |
| Merged Countries #4 | 0 | - | 4.81 | 94,085 |
| Merged Countries #6 | 0 | - | 4.90 | 73,784 |
| Merged Countries #7 | 0 | - | 4.93 | 83,115 |
| Geography by Picture - A | 0 | - | 4.39 | 60,419 |
| Geography by Picture - D | 0 | - | 4.15 | 45,773 |
| Geography by Picture - F | 0 | - | 4.31 | 51,162 |
| Geography by Picture - G | 0 | - | 4.39 | 48,069 |
| Geography by Picture - J | 0 | - | 4.16 | 38,585 |
| Geography by Picture - K | 0 | - | 4.29 | 33,238 |
| Geography by Picture - C | 0 | - | 4.31 | 57,220 |
| Geography by Picture - L | 0 | - | 4.37 | 59,123 |
| Geography by Picture - M | 0 | - | 4.14 | 40,569 |
| Geography by Picture - P | 0 | - | 4.24 | 42,555 |
| Geography by Picture - S | 0 | - | 4.38 | 47,174 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,500 |
| Islands by Picture | 0 | - | 4.28 | 107,717 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,905 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,366 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,913 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,941 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,037 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,648 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,506 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,533 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,424 |
| Island Countries | 0 | - | 4.99 | 712,370 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,991 |
| Himalayan Countries | 0 | - | 4.93 | 140,022 |
| Andean Countries | 0 | - | 4.94 | 85,317 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,472 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,835 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,044 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,334 |
| Danube Countries | 0 | - | 4.97 | 72,323 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,503 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,774 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,994 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,503 |
| European Landlocked Countries | 0 | - | 4.99 | 147,544 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,205 |
| Countries with the Most Species | 0 | - | 4.99 | 103,525 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,333 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,752 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,856 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,796 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,530 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,964 |
| Countries in the Alps | 0 | - | 4.87 | 118,696 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,499 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,761 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,924 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,972 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,888 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,197 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,334 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,814 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,382 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,130 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,828 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,702 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,506 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,737 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,835 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,710 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,566 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,712 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,607 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,490 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,024 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,477 |
| Largest Countries By Category | 0 | - | 4.97 | 158,783 |
| Countries by Countries | 0 | - | 4.96 | 63,586 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,194 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,382 |
