| All Country Flags of the World | 0 | - | 5.00 | 3,674,061 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,538,925 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,770 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,046 |
| Flags with Crescents | 0 | - | 4.98 | 169,900 |
| Country Flag Trivia | 0 | - | 4.81 | 57,218 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,994 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,695 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,640 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,412 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,385 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,965 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,076 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,280 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,781 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,508 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,617 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,324 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,508 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,749 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,675 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,667 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,696 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,788 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,566 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 99,221 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,656 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,792 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,197 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,483 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,576 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,916 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,107 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,213 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,067 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,534 |
| Flags of North and South America | 0 | - | 4.99 | 373,831 |
| Flags to Languages | 0 | - | 4.95 | 173,822 |
| Former Flags | 0 | - | 4.97 | 107,881 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,007 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,636 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,572 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,249 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,024 |
| 20 Random Country Flags | 0 | - | 4.99 | 613,798 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,840 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,254 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,711 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,744 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,796 |
| Flag Maths | 0 | - | 4.64 | 57,777 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,067 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,801 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,033 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,824 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,533 |
| World Coats of Arms | 0 | - | 4.99 | 64,643 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,763 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,932 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 171,793 |
| Similar Flags #1 | 0 | - | 4.75 | 130,185 |
| Similar Flags #2 | 0 | - | 4.74 | 137,479 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 37,949 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,145 |
| Emoji Flags | 0 | - | 4.35 | 44,136 |
| Countries by Road Signs | 0 | - | 4.98 | 53,958 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,694 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,159 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,319 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,219 |
| Select the World Flags | 0 | - | 4.27 | 37,807 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,093 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,965 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,886 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,520 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,207 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,294 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,975 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,553 |
| Countries by Picture #1 | 0 | - | 4.51 | 117,698 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,840 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,950 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,769 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,118 |
| Pixelated World Map | 0 | - | 5.00 | 143,539 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,531 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,424 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,250 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,704 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,645 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,246 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,207 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,094 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,621 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,065 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,513 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,072 |
| Geography by Picture - B | 0 | - | 4.42 | 55,650 |
| Geography by Picture - H | 0 | - | 4.50 | 58,265 |
| Geography by Picture - N | 0 | - | 4.45 | 42,234 |
| Geography by Picture - R | 0 | - | 4.56 | 41,059 |
| Geography by Picture - T | 0 | - | 4.54 | 57,885 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,567 |
| Flags of Oceania | 0 | - | 5.00 | 260,025 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,564 |
| Flags of WW1 | 0 | - | 4.60 | 38,456 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,216 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,112 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,972 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,329 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,918 |
| Boundary Waters | 0 | - | 4.92 | 88,523 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,219 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,209 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,616 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,545 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,514 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,540,412 |
| Landlocked Countries | 0 | - | 4.99 | 421,454 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,251 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,551 |
| Satellite Images #1 | 0 | - | 4.47 | 129,441 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,363 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,963 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,982 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,022 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,113 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,834 |
| World Capitals Quiz | 0 | - | 5.00 | 5,080,194 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,774,889 |
| Merged Countries #2 | 0 | - | 4.96 | 99,198 |
| Merged Countries #6 | 0 | - | 4.90 | 73,396 |
| Merged Countries #7 | 0 | - | 4.93 | 82,741 |
| Geography by Picture - A | 0 | - | 4.39 | 60,299 |
| Geography by Picture - D | 0 | - | 4.15 | 45,688 |
| Geography by Picture - F | 0 | - | 4.31 | 51,048 |
| Geography by Picture - G | 0 | - | 4.39 | 47,980 |
| Geography by Picture - J | 0 | - | 4.16 | 38,495 |
| Geography by Picture - K | 0 | - | 4.29 | 33,160 |
| Geography by Picture - C | 0 | - | 4.31 | 57,111 |
| Geography by Picture - L | 0 | - | 4.37 | 59,022 |
| Geography by Picture - M | 0 | - | 4.14 | 40,490 |
| Geography by Picture - P | 0 | - | 4.24 | 42,463 |
| Geography by Picture - S | 0 | - | 4.38 | 47,071 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,509 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,404 |
| Islands by Picture | 0 | - | 4.28 | 107,149 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,682 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,965 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,326 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,333 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,137 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,093 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,169 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,361 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,892 |
| Island Countries | 0 | - | 4.99 | 710,842 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,187 |
| Himalayan Countries | 0 | - | 4.95 | 138,477 |
| Andean Countries | 0 | - | 4.93 | 84,471 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,665 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,644 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,295 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,698 |
| Danube Countries | 0 | - | 4.97 | 71,944 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,934 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,360 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,188 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,651 |
| European Landlocked Countries | 0 | - | 4.99 | 147,069 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,530 |
| Countries with the Most Species | 0 | - | 4.99 | 103,179 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,677 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,551 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,696 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,503 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,181 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,599 |
| Countries in the Alps | 0 | - | 4.87 | 118,119 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,720 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,936 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,607 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,545 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,430 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,904 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,601 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,445 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,144 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,795 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,619 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,482 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,168 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,422 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,468 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,763 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,259 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,543 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,978 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,663 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,940 |
