| All Country Flags of the World | 0 | - | 5.00 | 3,628,028 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,940 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,624 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,244 |
| Flags with Crescents | 0 | - | 4.98 | 168,364 |
| Country Flag Trivia | 0 | - | 4.81 | 56,355 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,925 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,871 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,479 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,806 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,686 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,350 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,776 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,127 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,614 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,771 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,516 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,280 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,265 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,049 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,035 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,849 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,080 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,169 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,937 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,634 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,116 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,470 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,858 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,019 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,006 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,315 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,503 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,642 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,212 |
| Flags of North and South America | 0 | - | 4.99 | 369,985 |
| Former Flags | 0 | - | 4.97 | 107,146 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,764 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,188 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,081 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,383 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,818 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,970 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,330 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,866 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,935 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,952 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,274 |
| Flag Maths | 0 | - | 4.64 | 57,701 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,894 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,172 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,600 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,530 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,374 |
| World Coats of Arms | 0 | - | 4.99 | 64,120 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,902 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,227 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,523 |
| Similar Flags #1 | 0 | - | 4.74 | 129,463 |
| Similar Flags #2 | 0 | - | 4.74 | 136,761 |
| Emoji Flags | 0 | - | 4.35 | 43,915 |
| Countries by Road Signs | 0 | - | 4.98 | 53,392 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,236 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,096 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,389 |
| Select the World Flags | 0 | - | 4.27 | 37,548 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,548 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,718 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,179 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,180 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,835 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,981 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,782 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,339 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,619 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,119 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,555 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,123 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,883 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,443 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,331 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,336 |
| Pixelated World Map | 0 | - | 5.00 | 142,849 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,674 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,709 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 715,868 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,404 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,033 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,058 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,594 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,971 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,145 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,709 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,237 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,982 |
| Geography by Picture - B | 0 | - | 4.42 | 55,493 |
| Geography by Picture - H | 0 | - | 4.50 | 58,110 |
| Geography by Picture - N | 0 | - | 4.45 | 42,107 |
| Geography by Picture - R | 0 | - | 4.56 | 40,932 |
| Geography by Picture - T | 0 | - | 4.54 | 57,745 |
| Flags of Oceania | 0 | - | 5.00 | 256,875 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,458 |
| Flags of WW1 | 0 | - | 4.60 | 38,144 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,693 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,391 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,761 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,216 |
| Boundary Waters | 0 | - | 4.92 | 88,213 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,951 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,628 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,782 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,101 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,014 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,727 |
| All Germanic Languages With a Map | 0 | - | 4.89 | 67,925 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,146,910 |
| Landlocked Countries | 0 | - | 4.99 | 416,451 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,309 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,261 |
| Satellite Images #1 | 0 | - | 4.46 | 129,167 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,122 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,768 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,760 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,883 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,629 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,782 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,111 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,476 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,330 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,142 |
| Merged Countries #2 | 0 | - | 4.96 | 98,696 |
| Merged Countries #6 | 0 | - | 4.90 | 72,946 |
| Merged Countries #7 | 0 | - | 4.93 | 82,202 |
| Geography by Picture - A | 0 | - | 4.39 | 60,124 |
| Geography by Picture - D | 0 | - | 4.15 | 45,553 |
| Geography by Picture - F | 0 | - | 4.31 | 50,887 |
| Geography by Picture - G | 0 | - | 4.38 | 47,860 |
| Geography by Picture - J | 0 | - | 4.16 | 38,379 |
| Geography by Picture - K | 0 | - | 4.29 | 33,052 |
| Geography by Picture - C | 0 | - | 4.31 | 56,983 |
| Geography by Picture - L | 0 | - | 4.37 | 58,845 |
| Geography by Picture - M | 0 | - | 4.14 | 40,379 |
| Geography by Picture - P | 0 | - | 4.24 | 42,351 |
| Geography by Picture - S | 0 | - | 4.38 | 46,966 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,245 |
| Islands by Picture | 0 | - | 4.29 | 106,354 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,355 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,321 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,256 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,512 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,650 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,766 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,333 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,370 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,744 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,612 |
| Island Countries | 0 | - | 4.99 | 708,745 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,834 |
| Himalayan Countries | 0 | - | 4.95 | 136,420 |
| Andean Countries | 0 | - | 4.95 | 83,440 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,709 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,931 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,389 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,991 |
| Danube Countries | 0 | - | 4.97 | 71,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,183 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,836 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,114 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,071 |
| European Landlocked Countries | 0 | - | 4.99 | 146,108 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,724 |
| Countries with the Most Species | 0 | - | 4.99 | 101,060 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,864 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,498 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,165 |
| Countries in the Alps | 0 | - | 4.86 | 117,303 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,845 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,237 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,720 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,797 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,232 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,961 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,983 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,787 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,346 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,196 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,705 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,991 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,877 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,415 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,212 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,889 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,514 |
