| All Country Flags of the World | 0 | - | 5.00 | 3,594,753 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,722 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,668 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,146 |
| Flags with Crescents | 0 | - | 4.98 | 167,300 |
| Country Flag Trivia | 0 | - | 4.81 | 55,793 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,254 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,346 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,746 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,355 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,282 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,940 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,406 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,923 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,503 |
| Flags that are Red & White Only | 0 | - | 4.97 | 152,039 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,326 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,326 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,436 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,437 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,113 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,564 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,635 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,446 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,134 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,704 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,188 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,601 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,675 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,276 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,585 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,625 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,848 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,972 |
| Flags of North and South America | 0 | - | 4.99 | 365,625 |
| Flags to Languages | 0 | - | 4.95 | 172,343 |
| Former Flags | 0 | - | 4.97 | 106,536 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,550 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,137 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,673 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,433 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,170 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,658 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,569 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,983 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,536 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,373 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,326 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,093 |
| Flag Maths | 0 | - | 4.78 | 57,664 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,233 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,899 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,395 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,319 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,254 |
| World Coats of Arms | 0 | - | 4.99 | 63,789 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,235 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,642 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,674 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,285 |
| Similar Flags #1 | 0 | - | 4.74 | 128,972 |
| Similar Flags #2 | 0 | - | 4.74 | 136,237 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,424 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,036 |
| Emoji Flags | 0 | - | 4.35 | 43,789 |
| Countries by Road Signs | 0 | - | 4.98 | 52,988 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,952 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,949 |
| Select the World Flags | 0 | - | 4.27 | 37,360 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,212 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,518 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,703 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,991 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,640 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,770 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,651 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,189 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,308 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,943 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,334 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,246 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,555 |
| Pixelated World Map | 0 | - | 5.00 | 141,986 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 60,587 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,287 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,292 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,231 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,611 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,909 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,193 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,885 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,015 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,514 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,130 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,896 |
| Geography by Picture - B | 0 | - | 4.42 | 55,385 |
| Geography by Picture - H | 0 | - | 4.49 | 58,017 |
| Geography by Picture - N | 0 | - | 4.45 | 42,031 |
| Geography by Picture - R | 0 | - | 4.55 | 40,866 |
| Geography by Picture - T | 0 | - | 4.54 | 57,649 |
| Merged Company Logos #3 | 0 | - | 4.52 | 63,888 |
| Flags of Oceania | 0 | - | 5.00 | 254,640 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,661 |
| Flags of WW1 | 0 | - | 4.60 | 37,879 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 26,885 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,359 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,966 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,294 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,656 |
| Boundary Waters | 0 | - | 4.92 | 87,993 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,182 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,136 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,764 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,655 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,856,624 |
| Landlocked Countries | 0 | - | 4.99 | 412,928 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,776 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 50,996 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,959 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,954 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,616 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,617 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,775 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,284 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,732 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,047 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,360 |
| Merged Countries #2 | 0 | - | 4.96 | 98,394 |
| Merged Countries #6 | 0 | - | 4.91 | 72,648 |
| Merged Countries #7 | 0 | - | 4.93 | 81,894 |
| Geography by Picture - A | 0 | - | 4.39 | 60,021 |
| Geography by Picture - D | 0 | - | 4.15 | 45,467 |
| Geography by Picture - F | 0 | - | 4.31 | 50,807 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,315 |
| Geography by Picture - K | 0 | - | 4.28 | 32,996 |
| Geography by Picture - C | 0 | - | 4.31 | 56,891 |
| Geography by Picture - L | 0 | - | 4.37 | 58,731 |
| Geography by Picture - M | 0 | - | 4.14 | 40,328 |
| Geography by Picture - P | 0 | - | 4.24 | 42,286 |
| Geography by Picture - S | 0 | - | 4.38 | 46,894 |
| Merged Company Logos #4 | 0 | - | 4.39 | 51,984 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,169 |
| Islands by Picture | 0 | - | 4.29 | 105,766 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,112 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,909 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,477 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,844 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,096 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,860 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,091 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,852 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,022 |
| Island Countries | 0 | - | 4.99 | 707,267 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,263 |
| Himalayan Countries | 0 | - | 4.95 | 135,072 |
| Andean Countries | 0 | - | 4.94 | 82,678 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,092 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,007 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,777 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,481 |
| Danube Countries | 0 | - | 4.97 | 71,009 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,646 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,464 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,300 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,223 |
| European Landlocked Countries | 0 | - | 4.99 | 145,674 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,062 |
| Countries with the Most Species | 0 | - | 4.99 | 95,193 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,213 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,178 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,913 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,518 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,873 |
| Countries in the Alps | 0 | - | 4.87 | 116,696 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,482 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,093 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,948 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,332 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,072 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,940 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,479 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,691 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,006 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,975 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,000 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,369 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,681 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,679 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,885 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,573 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,206 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,682 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,870 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,394 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,546 |
| Largest Countries By Category | 0 | - | 4.97 | 156,632 |
