| All Country Flags of the World | 0 | - | 5.00 | 3,626,074 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,667 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,477 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,131 |
| Flags with Crescents | 0 | - | 4.98 | 168,300 |
| Country Flag Trivia | 0 | - | 4.81 | 56,299 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,882 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,824 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,430 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,764 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,657 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,332 |
| Flags of North and South America | 0 | - | 4.99 | 369,810 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,740 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,101 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,571 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,740 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,457 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,243 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,225 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,024 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,014 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,818 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,055 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,147 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,911 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,615 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,095 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,456 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,842 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,006 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,990 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,294 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,485 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,614 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,203 |
| Flags to Languages | 0 | - | 4.95 | 172,940 |
| Former Flags | 0 | - | 4.97 | 107,112 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,754 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,182 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,064 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,357 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,570 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,812 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,850 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,307 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,856 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,899 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,920 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,214 |
| Flag Maths | 0 | - | 4.64 | 57,700 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,869 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,167 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,590 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,867 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,523 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,368 |
| World Coats of Arms | 0 | - | 4.99 | 64,106 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,205 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,490 |
| Similar Flags #1 | 0 | - | 4.74 | 129,446 |
| Similar Flags #2 | 0 | - | 4.74 | 136,731 |
| Emoji Flags | 0 | - | 4.35 | 43,909 |
| Countries by Road Signs | 0 | - | 4.98 | 53,365 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,273 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,231 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,712 |
| Select the World Flags | 0 | - | 4.27 | 37,539 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,094 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,531 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,159 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,173 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,828 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,977 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,780 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,333 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,600 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,108 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,546 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,695 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,668 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,604 |
| Pixelated World Map | 0 | - | 5.00 | 142,832 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,394 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,409 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,017 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,047 |
| Flags of Oceania | 0 | - | 5.00 | 256,742 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,423 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,684 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,370 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,740 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,194 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,574 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,967 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,138 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,704 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,231 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,979 |
| Geography by Picture - B | 0 | - | 4.42 | 55,493 |
| Geography by Picture - H | 0 | - | 4.50 | 58,106 |
| Geography by Picture - N | 0 | - | 4.45 | 42,104 |
| Geography by Picture - R | 0 | - | 4.56 | 40,930 |
| Geography by Picture - T | 0 | - | 4.54 | 57,743 |
| Flags of WW1 | 0 | - | 4.60 | 38,128 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,779 |
| Boundary Waters | 0 | - | 4.92 | 88,203 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,943 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,611 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,754 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,086 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,995 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,131,645 |
| Landlocked Countries | 0 | - | 4.99 | 416,246 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 560,749 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,253 |
| Merged Countries #2 | 0 | - | 4.96 | 98,683 |
| Merged Countries #6 | 0 | - | 4.90 | 72,933 |
| Merged Countries #7 | 0 | - | 4.93 | 82,181 |
| Satellite Images #1 | 0 | - | 4.46 | 129,163 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,116 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,765 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,756 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,878 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,608 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,341 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,295 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,231 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,488 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,316 |
| World Capitals Quiz | 0 | - | 5.00 | 5,047,861 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,736 |
| Himalayan Countries | 0 | - | 4.95 | 136,337 |
| Andean Countries | 0 | - | 4.95 | 83,393 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,656 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,886 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,350 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,958 |
| Danube Countries | 0 | - | 4.97 | 71,355 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,150 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,814 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,073 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,021 |
| European Landlocked Countries | 0 | - | 4.99 | 146,080 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,696 |
| Countries with the Most Species | 0 | - | 4.99 | 99,945 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,841 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,312 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,486 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,129 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,782 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,153 |
| Countries in the Alps | 0 | - | 4.86 | 117,282 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,804 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,697 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,759 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,218 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,943 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,967 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,765 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,299 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,337 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,188 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,690 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,959 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,970 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,634 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,867 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,401 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,155 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,769 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,468 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,790 |
| Largest Countries By Category | 0 | - | 4.97 | 157,204 |
| Countries by Countries | 0 | - | 4.96 | 62,558 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,818 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,403 |
| Merged Country Flags | 0 | - | 4.88 | 106,295 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,587 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,363 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,291 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,047 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,730 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,989 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,612 |
| Geography by Picture - A | 0 | - | 4.39 | 60,123 |
| Geography by Picture - D | 0 | - | 4.15 | 45,552 |
| Geography by Picture - F | 0 | - | 4.31 | 50,887 |
| Geography by Picture - G | 0 | - | 4.38 | 47,858 |
| Geography by Picture - J | 0 | - | 4.16 | 38,377 |
| Geography by Picture - K | 0 | - | 4.29 | 33,051 |
| Geography by Picture - C | 0 | - | 4.31 | 56,983 |
| Geography by Picture - L | 0 | - | 4.37 | 58,841 |
| Geography by Picture - M | 0 | - | 4.14 | 40,378 |
| Geography by Picture - P | 0 | - | 4.24 | 42,348 |
| Geography by Picture - S | 0 | - | 4.38 | 46,962 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,010 |
