| All Country Flags of the World | 0 | - | 5.00 | 3,678,357 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,725 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,136 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,301 |
| Flags with Crescents | 0 | - | 4.98 | 170,044 |
| Country Flag Trivia | 0 | - | 4.81 | 57,302 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,097 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,770 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,748 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,471 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,029 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,185 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,372 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,880 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,558 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,716 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,420 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,613 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,807 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,736 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,730 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,752 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,845 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,639 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 99,275 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,706 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,827 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,220 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,522 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,624 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,968 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,163 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,265 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,129 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,561 |
| Flags of North and South America | 0 | - | 4.99 | 374,163 |
| Flags to Languages | 0 | - | 4.95 | 173,897 |
| Former Flags | 0 | - | 4.97 | 107,952 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,022 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,676 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,617 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,050 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,401 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,902 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,294 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,795 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,814 |
| Flag Maths | 0 | - | 4.64 | 57,788 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,187 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,844 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,056 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,857 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,545 |
| World Coats of Arms | 0 | - | 4.99 | 64,685 |
| Similar Flags #1 | 0 | - | 4.75 | 130,249 |
| Similar Flags #2 | 0 | - | 4.74 | 137,537 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,857 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,018 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 171,915 |
| Emoji Flags | 0 | - | 4.35 | 44,149 |
| Countries by Road Signs | 0 | - | 4.98 | 54,004 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,735 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,340 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,354 |
| Select the World Flags | 0 | - | 4.27 | 37,827 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,147 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,984 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,549 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,243 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,325 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,992 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,572 |
| Countries by Picture #1 | 0 | - | 4.51 | 118,243 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,874 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,991 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,958 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,017 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,620 |
| Pixelated World Map | 0 | - | 5.00 | 143,614 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,935 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,304 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,712 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,268 |
| Boundary Waters | 0 | - | 4.92 | 88,566 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,245 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,259 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,698 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,596 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,568 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,425 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,148 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,644 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,106 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,532 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,099 |
| Geography by Picture - B | 0 | - | 4.42 | 55,667 |
| Geography by Picture - H | 0 | - | 4.50 | 58,276 |
| Geography by Picture - N | 0 | - | 4.45 | 42,244 |
| Geography by Picture - R | 0 | - | 4.56 | 41,067 |
| Geography by Picture - T | 0 | - | 4.54 | 57,893 |
| Flags of Oceania | 0 | - | 5.00 | 260,371 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,658 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 63,152 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,035 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,371 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,965 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,578,066 |
| Flags of WW1 | 0 | - | 4.60 | 38,490 |
| Landlocked Countries | 0 | - | 4.99 | 421,909 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 576,688 |
| Satellite Images #1 | 0 | - | 4.47 | 129,470 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,390 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,977 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,004 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,035 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,158 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,838 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,703 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,011 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,404 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,412 |
| World Capitals Quiz | 0 | - | 5.00 | 5,082,874 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,407 |
| Himalayan Countries | 0 | - | 4.94 | 138,689 |
| Andean Countries | 0 | - | 4.93 | 84,589 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,784 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,790 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,406 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,793 |
| Danube Countries | 0 | - | 4.97 | 72,000 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,005 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,417 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,291 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,770 |
| European Landlocked Countries | 0 | - | 4.99 | 147,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,628 |
| Countries with the Most Species | 0 | - | 4.99 | 103,240 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,753 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,588 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,721 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,538 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,221 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,655 |
| Countries in the Alps | 0 | - | 4.87 | 118,195 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,078 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,025 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,639 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,593 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,502 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,944 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,669 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,486 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,175 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,836 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,650 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,521 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,218 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,463 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,513 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,891 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,304 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 63,697 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,064 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,901 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,082 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,224 |
| Largest Countries By Category | 0 | - | 4.97 | 158,200 |
| Countries by Countries | 0 | - | 4.96 | 63,218 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,673 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,284 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,565 |
| Merged Country Flags | 0 | - | 4.88 | 106,946 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,563 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,016 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,807 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,672 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,778,210 |
| Merged Countries #2 | 0 | - | 4.96 | 99,251 |
| Merged Countries #6 | 0 | - | 4.90 | 73,463 |
| Merged Countries #7 | 0 | - | 4.93 | 82,799 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,702 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,859 |
| Geography by Picture - A | 0 | - | 4.39 | 60,317 |
| Geography by Picture - D | 0 | - | 4.15 | 45,699 |
| Geography by Picture - F | 0 | - | 4.31 | 51,065 |
| Geography by Picture - G | 0 | - | 4.39 | 47,992 |
| Geography by Picture - J | 0 | - | 4.16 | 38,507 |
| Geography by Picture - K | 0 | - | 4.29 | 33,169 |
| Geography by Picture - C | 0 | - | 4.31 | 57,121 |
| Geography by Picture - L | 0 | - | 4.37 | 59,031 |
| Geography by Picture - M | 0 | - | 4.14 | 40,500 |
| Geography by Picture - P | 0 | - | 4.24 | 42,474 |
| Geography by Picture - S | 0 | - | 4.38 | 47,079 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,498 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,498 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 34,914 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,987 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,285 |
| Longest International Borders | 0 | - | 4.99 | 265,195 |
| Countries with Three Borders | 0 | - | 4.96 | 36,610 |
