| All Country Flags of the World | 0 | - | 5.00 | 3,683,172 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,525 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,533 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,563 |
| Flags with Crescents | 0 | - | 4.98 | 170,272 |
| Country Flag Trivia | 0 | - | 4.81 | 57,419 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,193 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,868 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,859 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,523 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,521 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,086 |
| Flags of North and South America | 0 | - | 4.99 | 374,551 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,292 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,470 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,017 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,614 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,824 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,509 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,711 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,869 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,804 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,806 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,803 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,906 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,692 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,327 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,763 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,844 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,250 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,570 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,682 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,023 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,228 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,315 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,197 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,590 |
| Flags to Languages | 0 | - | 4.95 | 173,953 |
| Former Flags | 0 | - | 4.97 | 108,014 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,042 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,729 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,662 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,355 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,071 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,997 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,956 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,325 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,855 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,886 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,096 |
| Flag Maths | 0 | - | 4.64 | 57,794 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,254 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,892 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,079 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,941 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,883 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,556 |
| World Coats of Arms | 0 | - | 4.99 | 64,763 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,093 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,029 |
| Similar Flags #1 | 0 | - | 4.75 | 130,319 |
| Similar Flags #2 | 0 | - | 4.74 | 137,609 |
| Emoji Flags | 0 | - | 4.35 | 44,165 |
| Countries by Road Signs | 0 | - | 4.98 | 54,055 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,515 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,781 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,007 |
| Select the World Flags | 0 | - | 4.27 | 37,846 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,364 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,197 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,019 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,575 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,276 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,351 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,010 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,593 |
| Countries by Picture #1 | 0 | - | 4.51 | 118,661 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,914 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,028 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,355 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,369 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,240 |
| Pixelated World Map | 0 | - | 5.00 | 143,679 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,756 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,558 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,769 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,285 |
| Flags of Oceania | 0 | - | 5.00 | 260,730 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,773 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,185 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,102 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,422 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,032 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,563 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,190 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,678 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,155 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,569 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,130 |
| Geography by Picture - B | 0 | - | 4.42 | 55,682 |
| Geography by Picture - H | 0 | - | 4.50 | 58,286 |
| Geography by Picture - N | 0 | - | 4.45 | 42,258 |
| Geography by Picture - R | 0 | - | 4.56 | 41,079 |
| Geography by Picture - T | 0 | - | 4.54 | 57,908 |
| Flags of WW1 | 0 | - | 4.60 | 38,519 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,847 |
| Boundary Waters | 0 | - | 4.92 | 88,600 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,270 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,324 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,794 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,659 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,619 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,619,426 |
| Landlocked Countries | 0 | - | 4.99 | 422,442 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 578,372 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,599 |
| Merged Countries #2 | 0 | - | 4.96 | 99,287 |
| Merged Countries #6 | 0 | - | 4.90 | 73,507 |
| Merged Countries #7 | 0 | - | 4.93 | 82,845 |
| Satellite Images #1 | 0 | - | 4.47 | 129,497 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,415 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,997 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,019 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,050 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,217 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,729 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,064 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,474 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,487 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,233 |
| World Capitals Quiz | 0 | - | 5.00 | 5,086,075 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,754 |
| Himalayan Countries | 0 | - | 4.95 | 138,955 |
| Andean Countries | 0 | - | 4.93 | 84,749 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,956 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,024 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,565 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,898 |
| Danube Countries | 0 | - | 4.97 | 72,078 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,096 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,476 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,417 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,897 |
| European Landlocked Countries | 0 | - | 4.99 | 147,205 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,737 |
| Countries with the Most Species | 0 | - | 4.99 | 103,286 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,855 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,625 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,742 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,579 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,280 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,716 |
| Countries in the Alps | 0 | - | 4.87 | 118,283 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,412 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,139 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,700 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,643 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,571 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,990 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,730 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,552 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,205 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,909 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,683 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,556 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,269 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,524 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,583 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,015 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,355 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,338 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,155 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,177 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,266 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,271 |
| Largest Countries By Category | 0 | - | 4.97 | 158,303 |
| Countries by Countries | 0 | - | 4.96 | 63,298 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,753 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,577 |
| Merged Country Flags | 0 | - | 4.88 | 106,995 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,748 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,072 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,847 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,724 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,782,126 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,113 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,747 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,869 |
| Geography by Picture - A | 0 | - | 4.39 | 60,330 |
| Geography by Picture - D | 0 | - | 4.15 | 45,712 |
| Geography by Picture - F | 0 | - | 4.31 | 51,077 |
| Geography by Picture - G | 0 | - | 4.39 | 48,006 |
| Geography by Picture - J | 0 | - | 4.16 | 38,517 |
| Geography by Picture - K | 0 | - | 4.29 | 33,178 |
| Geography by Picture - C | 0 | - | 4.31 | 57,136 |
| Geography by Picture - L | 0 | - | 4.37 | 59,049 |
| Geography by Picture - M | 0 | - | 4.14 | 40,511 |
| Geography by Picture - P | 0 | - | 4.24 | 42,486 |
| Geography by Picture - S | 0 | - | 4.38 | 47,094 |
