| All Country Flags of the World | 0 | - | 5.00 | 3,593,767 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,544 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,582 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,083 |
| Flags with Crescents | 0 | - | 4.98 | 167,252 |
| Country Flag Trivia | 0 | - | 4.81 | 55,767 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,220 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,333 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,716 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,333 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,260 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,925 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,312 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,840 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,422 |
| Flags that are Red & White Only | 0 | - | 4.97 | 146,799 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,220 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,106 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,383 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,366 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,030 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,517 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,595 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,411 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,104 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,664 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,169 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,573 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,654 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,253 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,553 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,592 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,812 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,954 |
| Flags of North and South America | 0 | - | 4.99 | 365,386 |
| Flags to Languages | 0 | - | 4.95 | 172,326 |
| Former Flags | 0 | - | 4.97 | 106,521 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,529 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,136 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,645 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,402 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,648 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,444 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,966 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,521 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,355 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,309 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,051 |
| Flag Maths | 0 | - | 4.78 | 57,663 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,215 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,890 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,392 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,313 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,251 |
| World Coats of Arms | 0 | - | 4.99 | 63,781 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,211 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,624 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,644 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,278 |
| Similar Flags #1 | 0 | - | 4.74 | 128,955 |
| Similar Flags #2 | 0 | - | 4.74 | 136,212 |
| Emoji Flags | 0 | - | 4.35 | 43,784 |
| Countries by Road Signs | 0 | - | 4.98 | 52,969 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,943 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,943 |
| Select the World Flags | 0 | - | 4.27 | 37,357 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,202 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,514 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,688 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,980 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,629 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,761 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,649 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,189 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,293 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,932 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,331 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,883 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,414 |
| Pixelated World Map | 0 | - | 5.00 | 141,779 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,153 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,271 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,225 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,600 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,903 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,180 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,882 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,011 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,508 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,119 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,891 |
| Geography by Picture - B | 0 | - | 4.42 | 55,384 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,030 |
| Geography by Picture - R | 0 | - | 4.55 | 40,863 |
| Geography by Picture - T | 0 | - | 4.54 | 57,647 |
| Flags of Oceania | 0 | - | 5.00 | 254,573 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,624 |
| Flags of WW1 | 0 | - | 4.60 | 37,866 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,345 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,938 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,275 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,630 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,170 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,125 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,758 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,645 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,848,518 |
| Landlocked Countries | 0 | - | 4.99 | 412,850 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,534 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 50,984 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,953 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,950 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,613 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,774 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,267 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,730 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,287 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,455 |
| Merged Countries #2 | 0 | - | 4.96 | 98,383 |
| Merged Countries #6 | 0 | - | 4.91 | 72,637 |
| Merged Countries #7 | 0 | - | 4.93 | 81,879 |
| Geography by Picture - A | 0 | - | 4.39 | 60,018 |
| Geography by Picture - D | 0 | - | 4.15 | 45,466 |
| Geography by Picture - F | 0 | - | 4.31 | 50,806 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,313 |
| Geography by Picture - K | 0 | - | 4.28 | 32,995 |
| Geography by Picture - C | 0 | - | 4.31 | 56,890 |
| Geography by Picture - L | 0 | - | 4.37 | 58,728 |
| Geography by Picture - M | 0 | - | 4.14 | 40,326 |
| Geography by Picture - P | 0 | - | 4.24 | 42,286 |
| Geography by Picture - S | 0 | - | 4.38 | 46,893 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,167 |
| Islands by Picture | 0 | - | 4.29 | 105,737 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,896 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,456 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,980 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,839 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,813 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,814 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,972 |
| Island Countries | 0 | - | 4.99 | 707,221 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,219 |
| Himalayan Countries | 0 | - | 4.95 | 135,043 |
| Andean Countries | 0 | - | 4.94 | 82,656 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,077 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,978 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,750 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,457 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,634 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,279 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,190 |
| European Landlocked Countries | 0 | - | 4.99 | 145,663 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,044 |
| Countries with the Most Species | 0 | - | 4.99 | 95,184 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,173 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,332 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,907 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,678 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,464 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,065 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,936 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,318 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,934 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,682 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,290 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,964 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,357 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,670 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,855 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,564 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,813 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,351 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,534 |
| Largest Countries By Category | 0 | - | 4.97 | 156,602 |
| Countries by Countries | 0 | - | 4.96 | 62,160 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,204 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,931 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Merged Country Flags | 0 | - | 4.88 | 105,911 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,374 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 97,995 |
