| All Country Flags of the World | 0 | - | 5.00 | 3,695,998 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,542,783 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,635 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,354 |
| Flags with Crescents | 0 | - | 4.98 | 170,803 |
| Country Flag Trivia | 0 | - | 4.81 | 57,689 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,515 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,095 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,179 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,699 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,721 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,284 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,303 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,835 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,922 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,430 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,928 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,214 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,925 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,183 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,136 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,059 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,067 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,040 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,110 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,908 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,529 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,960 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,967 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,367 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,737 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,879 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,230 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,430 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,515 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,451 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,701 |
| Flags of North and South America | 0 | - | 4.99 | 375,583 |
| Flags to Languages | 0 | - | 4.95 | 174,213 |
| Former Flags | 0 | - | 4.97 | 108,252 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,146 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,874 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,830 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,549 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,150 |
| 20 Random Country Flags | 0 | - | 4.99 | 616,615 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,105 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,440 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,064 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,140 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,520 |
| Flag Maths | 0 | - | 4.61 | 57,811 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,506 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,010 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,152 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,952 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,587 |
| World Coats of Arms | 0 | - | 4.99 | 64,887 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,191 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,613 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,352 |
| Similar Flags #1 | 0 | - | 4.75 | 130,505 |
| Similar Flags #2 | 0 | - | 4.74 | 137,809 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,121 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,420 |
| Emoji Flags | 0 | - | 4.35 | 44,222 |
| Countries by Road Signs | 0 | - | 4.98 | 54,192 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,902 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,398 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,429 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,893 |
| Select the World Flags | 0 | - | 4.27 | 37,903 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,343 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,072 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,214 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,659 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,353 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,424 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,058 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,636 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,085 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,986 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,118 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,252,884 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,817 |
| Pixelated World Map | 0 | - | 5.00 | 143,853 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,830 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,316 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,513 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,819 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,961 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,342 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,925 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,283 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,734 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,248 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,615 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,176 |
| Geography by Picture - B | 0 | - | 4.42 | 55,722 |
| Geography by Picture - H | 0 | - | 4.50 | 58,325 |
| Geography by Picture - N | 0 | - | 4.45 | 42,296 |
| Geography by Picture - R | 0 | - | 4.56 | 41,103 |
| Geography by Picture - T | 0 | - | 4.54 | 57,947 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,736 |
| Flags of Oceania | 0 | - | 5.00 | 261,603 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,118 |
| Flags of WW1 | 0 | - | 4.60 | 38,590 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,306 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,298 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,254 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,607 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,239 |
| Boundary Waters | 0 | - | 4.92 | 88,665 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,329 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,472 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,034 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,787 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,780 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,724,748 |
| Landlocked Countries | 0 | - | 4.99 | 423,736 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 582,936 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,682 |
| Satellite Images #1 | 0 | - | 4.47 | 129,577 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,478 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,060 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,079 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,093 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,403 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,865 |
| World Capitals Quiz | 0 | - | 5.00 | 5,094,259 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,791,463 |
| Merged Countries #2 | 0 | - | 4.96 | 99,574 |
| Merged Countries #6 | 0 | - | 4.90 | 73,639 |
| Merged Countries #7 | 0 | - | 4.93 | 82,986 |
| Geography by Picture - A | 0 | - | 4.39 | 60,378 |
| Geography by Picture - D | 0 | - | 4.15 | 45,745 |
| Geography by Picture - F | 0 | - | 4.31 | 51,124 |
| Geography by Picture - G | 0 | - | 4.39 | 48,042 |
| Geography by Picture - J | 0 | - | 4.16 | 38,553 |
| Geography by Picture - K | 0 | - | 4.29 | 33,212 |
| Geography by Picture - C | 0 | - | 4.31 | 57,178 |
| Geography by Picture - L | 0 | - | 4.37 | 59,084 |
| Geography by Picture - M | 0 | - | 4.14 | 40,543 |
| Geography by Picture - P | 0 | - | 4.24 | 42,525 |
| Geography by Picture - S | 0 | - | 4.38 | 47,136 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,644 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,461 |
| Islands by Picture | 0 | - | 4.28 | 107,501 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,815 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,211 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,692 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,722 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,145 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,435 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,053 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,076 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,480 |
| Island Countries | 0 | - | 4.99 | 711,723 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,309 |
| Himalayan Countries | 0 | - | 4.94 | 139,488 |
| Andean Countries | 0 | - | 4.94 | 85,031 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,234 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,423 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,790 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,102 |
| Danube Countries | 0 | - | 4.97 | 72,203 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,292 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,617 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,696 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,197 |
| European Landlocked Countries | 0 | - | 4.99 | 147,363 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,967 |
| Countries with the Most Species | 0 | - | 4.99 | 103,411 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,101 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,679 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,790 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,681 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,431 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,844 |
| Countries in the Alps | 0 | - | 4.87 | 118,477 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,045 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,429 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,805 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,805 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,731 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,907 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,663 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,290 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,013 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,757 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,625 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,382 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,633 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,716 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,356 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,472 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,183 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,347 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,871 |
