| All Country Flags of the World | 0 | - | 5.00 | 3,594,487 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,662 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,645 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,131 |
| Flags with Crescents | 0 | - | 4.98 | 167,289 |
| Country Flag Trivia | 0 | - | 4.81 | 55,784 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,248 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,344 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,740 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,937 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,381 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,897 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,485 |
| Flags that are Red & White Only | 0 | - | 4.97 | 150,755 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,298 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,268 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,422 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,414 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,083 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,548 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,624 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,439 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,130 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,689 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,184 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,595 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,669 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,270 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,573 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,616 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,838 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,968 |
| Flags of North and South America | 0 | - | 4.99 | 365,560 |
| Flags to Languages | 0 | - | 4.95 | 172,338 |
| Former Flags | 0 | - | 4.97 | 106,534 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,541 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,136 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,661 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,421 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,656 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,525 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,977 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,533 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,364 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,317 |
| Flag Maths | 0 | - | 4.78 | 57,664 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,229 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,898 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,393 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,315 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,254 |
| World Coats of Arms | 0 | - | 4.99 | 63,787 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,282 |
| Similar Flags #1 | 0 | - | 4.74 | 128,967 |
| Similar Flags #2 | 0 | - | 4.74 | 136,236 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,229 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,636 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,662 |
| Emoji Flags | 0 | - | 4.35 | 43,787 |
| Countries by Road Signs | 0 | - | 4.98 | 52,977 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,950 |
| 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 | 75,207 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,516 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,989 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,640 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,769 |
| 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 | 98,304 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,941 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,333 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,698 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,140 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,524 |
| Pixelated World Map | 0 | - | 5.00 | 141,939 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,245 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,285 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,608 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,907 |
| Boundary Waters | 0 | - | 4.92 | 87,992 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,179 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,135 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,763 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,652 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,190 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,883 |
| 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 | 43,129 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,895 |
| Geography by Picture - B | 0 | - | 4.42 | 55,385 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,031 |
| Geography by Picture - R | 0 | - | 4.55 | 40,865 |
| Geography by Picture - T | 0 | - | 4.54 | 57,648 |
| Flags of Oceania | 0 | - | 5.00 | 254,635 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,655 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,358 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,957 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,290 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,649 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,854,228 |
| Flags of WW1 | 0 | - | 4.60 | 37,872 |
| Landlocked Countries | 0 | - | 4.99 | 412,912 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,689 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,959 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,953 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,616 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,775 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,279 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,731 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,109 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,905 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,472 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,843 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,865 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,251 |
| Himalayan Countries | 0 | - | 4.95 | 135,065 |
| Andean Countries | 0 | - | 4.94 | 82,673 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,088 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,002 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,767 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,473 |
| Danube Countries | 0 | - | 4.97 | 71,004 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,639 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,460 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,294 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,204 |
| European Landlocked Countries | 0 | - | 4.99 | 145,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,057 |
| Countries with the Most Species | 0 | - | 4.99 | 95,188 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,204 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,175 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,334 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,910 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,513 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,871 |
| Countries in the Alps | 0 | - | 4.87 | 116,689 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,478 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,089 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,943 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,328 |
| 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 | 99,476 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,686 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,796 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,973 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,166 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,999 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,365 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,675 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,678 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,872 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,572 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,202 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,672 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,854 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,386 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,545 |
| Largest Countries By Category | 0 | - | 4.97 | 156,624 |
| Countries by Countries | 0 | - | 4.96 | 62,169 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,225 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,935 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Merged Country Flags | 0 | - | 4.88 | 105,922 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,401 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,010 |
| Colourful Countries of the World | 0 | - | 4.99 | 58,970 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,661 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,047 |
| Merged Countries #2 | 0 | - | 4.96 | 98,389 |
| Merged Countries #6 | 0 | - | 4.91 | 72,645 |
| Merged Countries #7 | 0 | - | 4.93 | 81,889 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,634 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,456 |
| Geography by Picture - A | 0 | - | 4.39 | 60,018 |
| 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 | 38,314 |
| 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 | 58,729 |
| 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 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,484 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,213 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.97 | 34,402 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,151 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,546 |
| Longest International Borders | 0 | - | 4.99 | 263,374 |
| Countries with Three Borders | 0 | - | 4.96 | 36,133 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,559 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,609 |
