| All Country Flags of the World | 0 | - | 5.00 | 3,675,727 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,225 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,907 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,142 |
| Flags with Crescents | 0 | - | 4.98 | 169,964 |
| Country Flag Trivia | 0 | - | 4.81 | 57,251 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,029 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,724 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,685 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,432 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,408 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,989 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,123 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,317 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,825 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,526 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,654 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,363 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,551 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,770 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,705 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,696 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,721 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,814 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,599 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,243 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,683 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,808 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,207 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,496 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,592 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,935 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,128 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,230 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,086 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,546 |
| Flags of North and South America | 0 | - | 4.99 | 373,955 |
| Flags to Languages | 0 | - | 4.95 | 173,849 |
| Former Flags | 0 | - | 4.97 | 107,913 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,016 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,647 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,591 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,272 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,037 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,060 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,868 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,266 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,743 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,771 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,833 |
| Flag Maths | 0 | - | 4.64 | 57,784 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,118 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,818 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,047 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,839 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,537 |
| World Coats of Arms | 0 | - | 4.99 | 64,653 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,800 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,963 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,831 |
| Similar Flags #1 | 0 | - | 4.75 | 130,211 |
| Similar Flags #2 | 0 | - | 4.74 | 137,500 |
| Emoji Flags | 0 | - | 4.35 | 44,142 |
| Countries by Road Signs | 0 | - | 4.98 | 53,983 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,713 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,323 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,274 |
| Select the World Flags | 0 | - | 4.27 | 37,821 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,117 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,971 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,912 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,530 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,219 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,298 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,989 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,563 |
| Countries by Picture #1 | 0 | - | 4.51 | 117,954 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,855 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,965 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,237 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,303 |
| Pixelated World Map | 0 | - | 5.00 | 143,572 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,630 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,272 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,717 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,666 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,253 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,320 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,121 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,626 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,080 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,518 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,085 |
| Geography by Picture - B | 0 | - | 4.42 | 55,659 |
| Geography by Picture - H | 0 | - | 4.50 | 58,271 |
| Geography by Picture - N | 0 | - | 4.45 | 42,237 |
| Geography by Picture - R | 0 | - | 4.56 | 41,062 |
| Geography by Picture - T | 0 | - | 4.54 | 57,888 |
| Flags of Oceania | 0 | - | 5.00 | 260,215 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,601 |
| Flags of WW1 | 0 | - | 4.60 | 38,466 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,130 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,992 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,349 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,934 |
| Boundary Waters | 0 | - | 4.92 | 88,545 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,228 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,223 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,650 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,569 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,532 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,555,791 |
| Landlocked Countries | 0 | - | 4.99 | 421,632 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,884 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,561 |
| Satellite Images #1 | 0 | - | 4.47 | 129,448 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,372 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,969 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,994 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,028 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,130 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,836 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,320 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,776,165 |
| Merged Countries #2 | 0 | - | 4.96 | 99,226 |
| Merged Countries #6 | 0 | - | 4.90 | 73,430 |
| Merged Countries #7 | 0 | - | 4.93 | 82,771 |
| Geography by Picture - A | 0 | - | 4.39 | 60,309 |
| Geography by Picture - D | 0 | - | 4.15 | 45,695 |
| Geography by Picture - F | 0 | - | 4.31 | 51,054 |
| Geography by Picture - G | 0 | - | 4.39 | 47,984 |
| Geography by Picture - J | 0 | - | 4.16 | 38,498 |
| Geography by Picture - K | 0 | - | 4.29 | 33,164 |
| Geography by Picture - C | 0 | - | 4.31 | 57,117 |
| Geography by Picture - L | 0 | - | 4.37 | 59,027 |
| Geography by Picture - M | 0 | - | 4.14 | 40,495 |
| Geography by Picture - P | 0 | - | 4.24 | 42,468 |
| Geography by Picture - S | 0 | - | 4.38 | 47,077 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,407 |
| Islands by Picture | 0 | - | 4.28 | 107,184 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,692 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,985 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,361 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,364 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,295 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,128 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,677 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,414 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,984 |
| Island Countries | 0 | - | 4.99 | 710,910 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,273 |
| Himalayan Countries | 0 | - | 4.95 | 138,570 |
| Andean Countries | 0 | - | 4.93 | 84,521 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,703 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,704 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,338 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,732 |
| Danube Countries | 0 | - | 4.97 | 71,961 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,965 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,382 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,223 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,706 |
| European Landlocked Countries | 0 | - | 4.99 | 147,089 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,569 |
| Countries with the Most Species | 0 | - | 4.99 | 103,200 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,699 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,568 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,705 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,516 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,195 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,618 |
| Countries in the Alps | 0 | - | 4.87 | 118,148 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,871 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,975 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,620 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,564 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,457 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,922 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,629 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,460 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,157 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,811 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,632 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,493 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,184 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,434 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,485 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,817 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,282 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,192 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,010 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,750 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,998 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,191 |
| Largest Countries By Category | 0 | - | 4.97 | 158,149 |
| Countries by Countries | 0 | - | 4.96 | 63,157 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,637 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,269 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| Merged Country Flags | 0 | - | 4.88 | 106,919 |
