| All Country Flags of the World | 0 | - | 5.00 | 3,498,963 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,506,951 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,078,003 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 723,004 |
| Flags with Crescents | 0 | - | 4.98 | 164,018 |
| Country Flag Trivia | 0 | - | 4.82 | 53,776 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 99,960 |
| Country Flags with the Union Jack | 0 | - | 4.83 | 66,767 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 83,363 |
| Flag Maths | 0 | - | 4.86 | 57,376 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 50,490 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 139,143 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 111,075 |
| Flags with the Most Stars | 0 | - | 4.91 | 121,962 |
| Flags that are Red & White Only | 0 | - | 4.97 | 142,503 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 141,658 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 51,892 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 44,875 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 65,451 |
| Country Flags with the Most Red | 0 | - | 4.98 | 116,725 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 89,952 |
| Country Flags with the Most Green | 0 | - | 4.95 | 97,030 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 96,940 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 96,730 |
| Country Flags with the Most Black | 0 | - | 4.95 | 95,319 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 66,367 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.94 | 48,748 |
| Country Flags Slideshow | 0 | - | 4.90 | 45,550 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 96,915 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 78,192 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 63,065 |
| Countries by Partial Flag Images #6 | 0 | - | 4.88 | 37,269 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 97,242 |
| Flags of North and South America | 0 | - | 4.99 | 349,702 |
| Flags to Languages | 0 | - | 4.95 | 170,093 |
| Former Flags | 0 | - | 4.97 | 104,918 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.85 | 34,924 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 49,066 |
| Country Flags With Blue Removed | 0 | - | 4.91 | 42,422 |
| Countries by Partial Flag Images #7 | 0 | - | 4.87 | 28,673 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,064 |
| 20 Random Country Flags | 0 | - | 4.99 | 571,874 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 110,898 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 81,654 |
| Flags of the Mediterranean | 0 | - | 4.95 | 145,407 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 141,537 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 142,217 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,090 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 47,919 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 71,666 |
| Countries by Coat of Arms #2 | 0 | - | 4.82 | 40,889 |
| World Coats of Arms | 0 | - | 4.99 | 62,799 |
| Country Flags with the Southern Cross | 0 | - | 4.79 | 60,637 |
| Similar Flags #1 | 0 | - | 4.74 | 126,878 |
| Similar Flags #2 | 0 | - | 4.78 | 123,268 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 139,105 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 51,004 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 167,054 |
| Emoji Flags | 0 | - | 4.34 | 43,340 |
| Countries by Road Signs | 0 | - | 4.98 | 51,810 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,039 |
| Islands by Shape #2 | 0 | - | 4.89 | 49,243 |
| Select the World Flags | 0 | - | 4.28 | 36,788 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 74,076 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 57,917 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,289 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 68,861 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,142 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,253 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 43,812 |
| Countries by Picture #1 | 0 | - | 4.53 | 97,312 |
| Countries by Picture #3 | 0 | - | 4.53 | 58,423 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 46,674 |
| Name a Valid Country Flag | 0 | - | 4.64 | 72,830 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,193,575 |
| Flags of Asia Quiz | 0 | - | 4.99 | 591,468 |
| Pixelated World Map | 0 | - | 5.00 | 140,109 |
| Flags of Africa Quiz | 0 | - | 5.00 | 448,958 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 74,977 |
| Satellite Images - Europe | 0 | - | 4.47 | 102,387 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,527 |
| Boundary Waters | 0 | - | 4.92 | 87,333 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 34,293 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 93,959 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 59,377 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 58,820 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 68,527 |
| Cities by Satellite #1 | 0 | - | 4.38 | 78,904 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,616 |
| Countries by Picture #4 | 0 | - | 4.17 | 44,656 |
| Countries by Picture #2 | 0 | - | 4.37 | 68,908 |
| Countries by Picture #5 | 0 | - | 4.25 | 42,718 |
| Countries by Picture #6 | 0 | - | 4.14 | 35,626 |
| Geography by Picture - B | 0 | - | 4.42 | 55,016 |
| Geography by Picture - H | 0 | - | 4.49 | 57,695 |
| Geography by Picture - N | 0 | - | 4.45 | 41,744 |
| Geography by Picture - R | 0 | - | 4.55 | 40,604 |
| Geography by Picture - T | 0 | - | 4.54 | 57,321 |
| Flags of Oceania | 0 | - | 5.00 | 247,959 |
| Three Band Flags of Europe | 0 | - | 4.97 | 188,828 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 61,423 |
| Pixelated Africa Map | 0 | - | 4.98 | 97,199 |
| Pixelated Asia Map | 0 | - | 4.92 | 71,018 |
| Pixelated Europe Map | 0 | - | 4.88 | 120,110 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,992,654 |
| Flags of WW1 | 0 | - | 4.60 | 37,210 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 402,603 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 522,668 |
| Satellite Images Quiz #1 | 0 | - | 4.48 | 128,304 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,305 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,156 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,163 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,381 |
| Cities by Picture #1 | 0 | - | 4.70 | 84,225 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,597 |
| World Geography on a Map #1 | 0 | - | 4.94 | 72,445 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 93,432 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 162,771 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 121,149 |
| World Capitals Quiz | 0 | - | 5.00 | 4,953,683 |
| Sahara Desert Countries | 0 | - | 4.97 | 155,504 |
| Himalayan Countries | 0 | - | 4.95 | 130,928 |
| Andean Countries | 0 | - | 4.94 | 80,365 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 60,387 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 119,825 |
| Coffee Producing Countries | 0 | - | 4.81 | 63,837 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 62,875 |
| Danube Countries | 0 | - | 4.97 | 63,222 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 100,136 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 84,188 |
| Countries with the Worst Passports | 0 | - | 4.93 | 80,030 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 144,644 |
| European Landlocked Countries | 0 | - | 4.99 | 144,047 |
| Partially Recognized Countries | 0 | - | 4.98 | 102,932 |
| Countries with the Most Species | 0 | - | 4.99 | 94,188 |
| Countries 197 to 205 | 0 | - | 4.89 | 67,312 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,703 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,885 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,079 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 71,671 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,848 |
| Countries in the Alps | 0 | - | 4.87 | 114,831 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 93,262 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 102,720 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,182 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 93,884 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 113,730 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,912 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 97,868 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,780 |
| Largest Country by Body of Water | 0 | - | 4.96 | 49,510 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,926 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,586 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,386 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 102,339 |
| Arctic Ocean Countries | 0 | - | 4.95 | 77,768 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,712 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 114,286 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 66,652 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 58,425 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 42,801 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 233,259 |
| World Countries - Blind Typing | 0 | - | 5.00 | 102,080 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,760 |
| Largest Countries By Category | 0 | - | 4.97 | 154,797 |
| Countries by Countries | 0 | - | 4.96 | 60,950 |
| Country Flags with the Most White | 0 | - | 4.87 | 135,525 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,526 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 46,985 |
| Merged Country Flags | 0 | - | 4.87 | 104,804 |
| All Countries by Population With a Map | 0 | - | 4.98 | 102,866 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 96,038 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 86,462 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,632,969 |
| Merged Countries #2 | 0 | - | 4.96 | 97,438 |
| Merged Countries #4 | 0 | - | 4.81 | 91,760 |
| Merged Countries #6 | 0 | - | 4.91 | 71,691 |
| Merged Countries #7 | 0 | - | 4.93 | 80,959 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 143,020 |
| Western Europe Map Quiz | 0 | - | 4.87 | 92,840 |
| Geography by Picture - A | 0 | - | 4.39 | 59,643 |
| Geography by Picture - D | 0 | - | 4.15 | 45,179 |
| Geography by Picture - F | 0 | - | 4.30 | 50,492 |
| Geography by Picture - G | 0 | - | 4.38 | 47,501 |
| Geography by Picture - J | 0 | - | 4.16 | 38,072 |
| Geography by Picture - K | 0 | - | 4.28 | 32,765 |
| Geography by Picture - C | 0 | - | 4.31 | 56,573 |
| Geography by Picture - L | 0 | - | 4.37 | 58,395 |
| Geography by Picture - M | 0 | - | 4.14 | 40,096 |
| Geography by Picture - P | 0 | - | 4.23 | 42,053 |
| Geography by Picture - S | 0 | - | 4.37 | 46,612 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 80,668 |
| Who Controls It? #1 | 0 | - | 4.83 | 47,898 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 33,743 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 202,497 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 126,295 |
| Longest International Borders | 0 | - | 4.99 | 261,293 |
| Countries with Three Borders | 0 | - | 4.96 | 35,607 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 40,879 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 46,712 |
