| All Country Flags of the World | 0 | - | 5.00 | 3,633,660 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,531,815 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,066 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,643 |
| Flags with Crescents | 0 | - | 4.98 | 168,562 |
| Country Flag Trivia | 0 | - | 4.81 | 56,501 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,083 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,993 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,643 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,893 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,776 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,437 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,906 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,230 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,769 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,853 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,666 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,401 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,403 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,130 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,110 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,948 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,155 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,248 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,010 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,709 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,189 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,510 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,911 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,073 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,066 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,381 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,578 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,697 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,255 |
| Flags of North and South America | 0 | - | 4.99 | 370,570 |
| Flags to Languages | 0 | - | 4.95 | 173,090 |
| Former Flags | 0 | - | 4.97 | 107,226 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,792 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,240 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,140 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,468 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,670 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,840 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,562 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,395 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,917 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,042 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,045 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,456 |
| Flag Maths | 0 | - | 4.64 | 57,715 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,002 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,224 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,629 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,567 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,388 |
| World Coats of Arms | 0 | - | 4.99 | 64,167 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,011 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,315 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,661 |
| Similar Flags #1 | 0 | - | 4.74 | 129,560 |
| Similar Flags #2 | 0 | - | 4.74 | 136,854 |
| Emoji Flags | 0 | - | 4.35 | 43,946 |
| Countries by Road Signs | 0 | - | 4.98 | 53,463 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,298 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,129 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,672 |
| Select the World Flags | 0 | - | 4.27 | 37,585 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,589 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,741 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,264 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,208 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,877 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,004 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,800 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,363 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,678 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,150 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,589 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,235,718 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,531 |
| Pixelated World Map | 0 | - | 5.00 | 142,932 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,320 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,786 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,435 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,101 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,080 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,667 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,986 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,168 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,753 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,251 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,999 |
| Geography by Picture - B | 0 | - | 4.42 | 55,512 |
| Geography by Picture - H | 0 | - | 4.50 | 58,133 |
| Geography by Picture - N | 0 | - | 4.45 | 42,122 |
| Geography by Picture - R | 0 | - | 4.56 | 40,950 |
| Geography by Picture - T | 0 | - | 4.54 | 57,759 |
| Flags of Oceania | 0 | - | 5.00 | 257,218 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,583 |
| Flags of WW1 | 0 | - | 4.60 | 38,189 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,731 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,456 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,833 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,288 |
| Boundary Waters | 0 | - | 4.92 | 88,263 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,990 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,690 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,884 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,172 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,084 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,194,889 |
| Landlocked Countries | 0 | - | 4.99 | 417,063 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 562,949 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,295 |
| Satellite Images #1 | 0 | - | 4.46 | 129,200 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,157 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,793 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,798 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,894 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,690 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,788 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,942 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,622 |
| Merged Countries #2 | 0 | - | 4.96 | 98,763 |
| Merged Countries #6 | 0 | - | 4.90 | 72,995 |
| Merged Countries #7 | 0 | - | 4.93 | 82,255 |
| Geography by Picture - A | 0 | - | 4.39 | 60,146 |
| Geography by Picture - D | 0 | - | 4.15 | 45,570 |
| Geography by Picture - F | 0 | - | 4.31 | 50,906 |
| Geography by Picture - G | 0 | - | 4.38 | 47,877 |
| Geography by Picture - J | 0 | - | 4.16 | 38,393 |
| Geography by Picture - K | 0 | - | 4.29 | 33,066 |
| Geography by Picture - C | 0 | - | 4.31 | 56,999 |
| Geography by Picture - L | 0 | - | 4.37 | 58,858 |
| Geography by Picture - M | 0 | - | 4.14 | 40,395 |
| Geography by Picture - P | 0 | - | 4.24 | 42,368 |
| Geography by Picture - S | 0 | - | 4.38 | 46,981 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,263 |
| Islands by Picture | 0 | - | 4.29 | 106,433 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,402 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,410 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,341 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,610 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,309 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,440 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,834 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,994 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,067 |
| Island Countries | 0 | - | 4.99 | 708,986 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,115 |
| Himalayan Countries | 0 | - | 4.95 | 136,677 |
| Andean Countries | 0 | - | 4.95 | 83,572 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,828 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,107 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,495 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,087 |
| Danube Countries | 0 | - | 4.97 | 71,470 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,279 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,884 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,244 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,240 |
| European Landlocked Countries | 0 | - | 4.99 | 146,170 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,829 |
| Countries with the Most Species | 0 | - | 4.99 | 102,240 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,959 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,349 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,529 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,191 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,840 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,219 |
| Countries in the Alps | 0 | - | 4.86 | 117,396 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,937 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,000 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,283 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,782 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,873 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,293 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,039 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,019 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,846 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,384 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,385 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,764 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,030 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,036 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,794 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,920 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,453 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,283 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,235 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,683 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,858 |
| Largest Countries By Category | 0 | - | 4.97 | 157,326 |
| Countries by Countries | 0 | - | 4.96 | 62,637 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,928 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,094 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,415 |
| Merged Country Flags | 0 | - | 4.88 | 106,386 |
