| All Country Flags of the World | 0 | - | 5.00 | 3,675,535 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,194 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,900 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,134 |
| Flags with Crescents | 0 | - | 4.98 | 169,951 |
| Country Flag Trivia | 0 | - | 4.81 | 57,250 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,025 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,718 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,683 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,428 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,982 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,118 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,314 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,820 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,524 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,649 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,355 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,547 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,768 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,704 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,692 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,719 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,810 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,590 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,238 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,680 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,805 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,205 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,495 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,591 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,934 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,127 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,227 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,085 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,545 |
| Flags of North and South America | 0 | - | 4.99 | 373,943 |
| Flags to Languages | 0 | - | 4.95 | 173,844 |
| Former Flags | 0 | - | 4.97 | 107,910 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,016 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,644 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,587 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,036 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,040 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,866 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,265 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,740 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,771 |
| Flag Maths | 0 | - | 4.64 | 57,784 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,116 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,817 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,044 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,838 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,537 |
| World Coats of Arms | 0 | - | 4.99 | 64,648 |
| Similar Flags #1 | 0 | - | 4.75 | 130,208 |
| Similar Flags #2 | 0 | - | 4.74 | 137,495 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,788 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,956 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,825 |
| Emoji Flags | 0 | - | 4.35 | 44,141 |
| Countries by Road Signs | 0 | - | 4.98 | 53,980 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,712 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,322 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,265 |
| Select the World Flags | 0 | - | 4.27 | 37,820 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,111 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,969 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,529 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,219 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,296 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,986 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,561 |
| Countries by Picture #1 | 0 | - | 4.51 | 117,927 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,854 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,964 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,907 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,247,181 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,284 |
| Pixelated World Map | 0 | - | 5.00 | 143,570 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,622 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,270 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,664 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,251 |
| Boundary Waters | 0 | - | 4.92 | 88,544 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,227 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,219 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,648 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,564 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,527 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,313 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,120 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,626 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,079 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,518 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,083 |
| Geography by Picture - B | 0 | - | 4.42 | 55,659 |
| Geography by Picture - H | 0 | - | 4.50 | 58,270 |
| Geography by Picture - N | 0 | - | 4.45 | 42,237 |
| Geography by Picture - R | 0 | - | 4.56 | 41,062 |
| Geography by Picture - T | 0 | - | 4.54 | 57,888 |
| Flags of Oceania | 0 | - | 5.00 | 260,200 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,594 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,129 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,986 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,346 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,931 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,553,947 |
| Flags of WW1 | 0 | - | 4.60 | 38,465 |
| Landlocked Countries | 0 | - | 4.99 | 421,606 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,812 |
| Satellite Images #1 | 0 | - | 4.47 | 129,447 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,371 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,969 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,994 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,027 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,129 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,836 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,691 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,985 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,357 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,362 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,183 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,257 |
| Himalayan Countries | 0 | - | 4.95 | 138,553 |
| Andean Countries | 0 | - | 4.93 | 84,512 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,697 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,693 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,330 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,729 |
| Danube Countries | 0 | - | 4.97 | 71,959 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,958 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,381 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,220 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,697 |
| European Landlocked Countries | 0 | - | 4.99 | 147,086 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,563 |
| Countries with the Most Species | 0 | - | 4.99 | 103,196 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,694 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,559 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,702 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,510 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,192 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,614 |
| Countries in the Alps | 0 | - | 4.87 | 118,145 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,855 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,973 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,618 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,562 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,450 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,918 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,627 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,456 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,155 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,808 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,631 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,492 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,183 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,433 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,484 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,806 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,276 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,135 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,999 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,744 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,988 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,190 |
| Largest Countries By Category | 0 | - | 4.97 | 158,144 |
| Countries by Countries | 0 | - | 4.96 | 63,152 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,634 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,269 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| Merged Country Flags | 0 | - | 4.88 | 106,917 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,469 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,954 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,780 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,640 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,995 |
| Merged Countries #2 | 0 | - | 4.96 | 99,224 |
| Merged Countries #6 | 0 | - | 4.90 | 73,428 |
| Merged Countries #7 | 0 | - | 4.93 | 82,768 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,679 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,846 |
| Geography by Picture - A | 0 | - | 4.39 | 60,308 |
| Geography by Picture - D | 0 | - | 4.15 | 45,695 |
| Geography by Picture - F | 0 | - | 4.31 | 51,054 |
| Geography by Picture - G | 0 | - | 4.39 | 47,984 |
| Geography by Picture - J | 0 | - | 4.16 | 38,498 |
| Geography by Picture - K | 0 | - | 4.29 | 33,164 |
| Geography by Picture - C | 0 | - | 4.31 | 57,117 |
| Geography by Picture - L | 0 | - | 4.37 | 59,027 |
| Geography by Picture - M | 0 | - | 4.14 | 40,495 |
| Geography by Picture - P | 0 | - | 4.24 | 42,468 |
| Geography by Picture - S | 0 | - | 4.38 | 47,076 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,475 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,480 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 34,899 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,901 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,266 |
| Longest International Borders | 0 | - | 4.99 | 265,133 |
| Countries with Three Borders | 0 | - | 4.96 | 36,589 |
