| All Country Flags of the World | 0 | - | 5.00 | 2,970,257 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,366,066 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,002,550 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 671,841 |
| Flags with Crescents | 0 | - | 4.98 | 143,536 |
| Country Flag Trivia | 0 | - | 4.84 | 43,920 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.99 | 76,127 |
| Country Flags with the Union Jack | 0 | - | 4.84 | 56,221 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 67,886 |
| Flag Maths | 0 | - | 4.92 | 49,956 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.84 | 41,933 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 113,092 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 88,852 |
| Flags with the Most Stars | 0 | - | 4.91 | 105,886 |
| Flags that are Red & White Only | 0 | - | 4.97 | 130,931 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 125,656 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 35,386 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 35,469 |
| Four Countries with Similar Flags #1 | 0 | - | 4.98 | 43,313 |
| Country Flags with the Most Red | 0 | - | 4.97 | 91,492 |
| Country Flags with the Most Blue | 0 | - | 4.91 | 79,470 |
| Country Flags with the Most Green | 0 | - | 4.96 | 80,000 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 81,410 |
| Country Flags with the Most Yellow | 0 | - | 4.93 | 77,984 |
| Country Flags with the Most Black | 0 | - | 4.94 | 86,258 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 55,416 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 43,911 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 81,843 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 62,793 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 48,424 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 82,099 |
| Flags to Languages | 0 | - | 4.95 | 158,636 |
| Former Flags | 0 | - | 4.98 | 81,531 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 33,692 |
| Countries by Partial Flag Images #6 | 0 | - | 4.93 | 27,227 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 310,070 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 26,706 |
| Random Flag to Country | 0 | - | 4.99 | 505,978 |
| Countries by Bordering Flags #1 | 0 | - | 4.93 | 94,066 |
| Countries by Bordering Flags #2 | 0 | - | 4.87 | 75,416 |
| Flags of the Mediterranean | 0 | - | 4.94 | 124,132 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 114,616 |
| Countries by Satellite Image #1 | 0 | - | 4.87 | 129,596 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 75,803 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,454 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,269 |
| World Coats of Arms | 0 | - | 4.99 | 55,499 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.84 | 86,389 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 51,602 |
| Similar Flags #1 | 0 | - | 4.72 | 110,868 |
| Similar Flags #2 | 0 | - | 4.79 | 112,883 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 125,676 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 40,746 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 150,863 |
| Emoji Flags | 0 | - | 4.34 | 40,634 |
| Countries by Road Signs | 0 | - | 4.98 | 45,295 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 53,852 |
| Islands by Shape #2 | 0 | - | 4.87 | 44,997 |
| Select the World Flags | 0 | - | 4.30 | 33,246 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.76 | 23,523 |
| Random Circular Cutouts of the World Map | 0 | - | 4.97 | 66,509 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.64 | 54,189 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,150 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 64,185 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,220 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 43,848 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,241 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,237 |
| Countries by Picture #1 | 0 | - | 4.51 | 89,624 |
| Countries by Picture #3 | 0 | - | 4.52 | 54,552 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 42,189 |
| Name a Valid Country Flag | 0 | - | 4.55 | 47,513 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,045,604 |
| Flags of Asia Quiz | 0 | - | 4.99 | 524,930 |
| Pixelated World Map | 0 | - | 5.00 | 128,330 |
| Flags of Africa Quiz | 0 | - | 4.99 | 387,024 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 66,712 |
| Satellite Images - Europe | 0 | - | 4.44 | 81,491 |
| European Cities by Picture #2 | 0 | - | 4.47 | 34,587 |
| Boundary Waters | 0 | - | 4.93 | 81,147 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 74,852 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 44,852 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 51,248 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 60,014 |
| Cities by Satellite #1 | 0 | - | 4.36 | 70,496 |
| Cities by Satellite #2 | 0 | - | 4.47 | 22,765 |
| Countries by Picture #4 | 0 | - | 4.17 | 41,875 |
| Countries by Picture #2 | 0 | - | 4.37 | 64,262 |
| Countries by Picture #5 | 0 | - | 4.27 | 39,833 |
| Countries by Picture #6 | 0 | - | 4.17 | 33,642 |
| Geography by Picture - H | 0 | - | 4.52 | 55,154 |
| Geography by Picture - N | 0 | - | 4.46 | 39,548 |
| Geography by Picture - R | 0 | - | 4.55 | 38,590 |
| Geography by Picture - T | 0 | - | 4.63 | 54,728 |
| Flags of Oceania | 0 | - | 5.00 | 215,524 |
| Three Band Flags of Europe | 0 | - | 4.97 | 161,168 |
| Pixelated Africa Map | 0 | - | 4.98 | 88,348 |
| Pixelated Asia Map | 0 | - | 4.90 | 63,262 |
| Pixelated Europe Map | 0 | - | 4.90 | 109,539 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,965,463 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.82 | 30,143 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 324,157 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 352,430 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 122,655 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 103,583 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 84,342 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 45,707 |
| Satellite Images Quiz #6 | 0 | - | 4.52 | 35,586 |
| Cities by Picture #1 | 0 | - | 4.66 | 77,092 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.54 | 23,481 |
| World Geography on a Map #1 | 0 | - | 4.93 | 67,369 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 83,845 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 137,296 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 109,884 |
| World Capitals Quiz | 0 | - | 5.00 | 4,500,796 |
| Members of the Arab League | 0 | - | 4.85 | 62,089 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,042 |
| Himalayan Countries | 0 | - | 4.94 | 104,895 |
| Andean Countries | 0 | - | 4.91 | 58,163 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,132 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,388 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,739 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,057 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,318 |
| Danube Countries | 0 | - | 4.97 | 56,649 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,695 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,854 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,249 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,381 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,560 |
| European Landlocked Countries | 0 | - | 4.99 | 115,516 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,380 |
| Countries with the Most Species | 0 | - | 4.99 | 89,533 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,365 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,685 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,013 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,297 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,422 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,704 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,158 |
| Countries in the Alps | 0 | - | 4.84 | 102,675 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,337 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,196 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,593 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,272 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,989 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,573 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,639 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,151 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,327 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,661 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,440 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,599 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,673 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,508 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,982 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,485 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,103 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,349 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,397 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,390 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,935 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,287 |
| Largest Countries By Category | 0 | - | 4.96 | 144,936 |
| Countries by Countries | 0 | - | 4.96 | 54,655 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,075,263 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,494 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,710 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 44,717 |
| All Countries by Population With a Map | 0 | - | 4.99 | 62,138 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 76,799 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,226 |
| Merged Countries #2 | 0 | - | 4.96 | 89,676 |
| Merged Countries #4 | 0 | - | 4.87 | 84,346 |
| Merged Countries #6 | 0 | - | 4.89 | 65,208 |
| Merged Countries #7 | 0 | - | 4.93 | 74,362 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 134,643 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,129 |
| Geography by Picture - A | 0 | - | 4.35 | 56,849 |
| Geography by Picture - B | 0 | - | 4.36 | 52,398 |
| Geography by Picture - D | 0 | - | 4.10 | 43,160 |
| Geography by Picture - F | 0 | - | 4.25 | 48,269 |
| Geography by Picture - G | 0 | - | 4.39 | 45,326 |
| Geography by Picture - J | 0 | - | 4.14 | 36,343 |
| Geography by Picture - C | 0 | - | 4.28 | 54,203 |
| Geography by Picture - L | 0 | - | 4.34 | 55,788 |
| Geography by Picture - M | 0 | - | 4.11 | 38,356 |
| Geography by Picture - P | 0 | - | 4.28 | 40,112 |
| Geography by Picture - S | 0 | - | 4.35 | 44,524 |
| Tourist Attraction by Negative Review | 0 | - | 4.90 | 59,702 |
| Who Controls It? #1 | 0 | - | 4.84 | 45,511 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 181,304 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 110,938 |
| Longest International Borders | 0 | - | 4.99 | 234,229 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 35,971 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 40,117 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.87 | 34,424 |
| Demonym of Every Country | 0 | - | 4.91 | 49,579 |
| Islands by Shape #1 | 0 | - | 4.27 | 71,563 |
| Islands by Picture | 0 | - | 4.30 | 91,915 |
