| All Country Flags of the World | 0 | - | 5.00 | 3,611,589 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,009 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,206 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,233 |
| Flags with Crescents | 0 | - | 4.98 | 167,846 |
| Country Flag Trivia | 0 | - | 4.81 | 56,075 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,594 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,587 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,102 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,578 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,489 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,159 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,304 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,720 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,237 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,554 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,738 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,925 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,683 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,818 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,826 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,551 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,860 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,956 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,712 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,433 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,932 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,347 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,756 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,862 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,760 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,036 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,206 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,365 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,116 |
| Flags of North and South America | 0 | - | 4.99 | 368,321 |
| Flags to Languages | 0 | - | 4.95 | 172,672 |
| Former Flags | 0 | - | 4.97 | 106,865 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,682 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,169 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,895 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 31,078 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,388 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,748 |
| 20 Random Country Flags | 0 | - | 4.99 | 605,786 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,168 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,720 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,668 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,638 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,704 |
| Flag Maths | 0 | - | 4.78 | 57,691 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,564 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,038 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,497 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,424 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,306 |
| World Coats of Arms | 0 | - | 4.99 | 63,963 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,544 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,955 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,111 |
| Similar Flags #1 | 0 | - | 4.74 | 129,252 |
| Similar Flags #2 | 0 | - | 4.74 | 136,508 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,518 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,275 |
| Emoji Flags | 0 | - | 4.35 | 43,850 |
| Countries by Road Signs | 0 | - | 4.98 | 53,211 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,114 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,036 |
| Countries by Partial Flag Images #8 | 0 | - | 4.80 | 20,898 |
| Select the World Flags | 0 | - | 4.27 | 37,441 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,382 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,633 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,939 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,098 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,733 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,883 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,725 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,260 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,459 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,029 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,443 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,321 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,716 |
| Pixelated World Map | 0 | - | 5.00 | 142,577 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 60,777 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,457 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,501 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,314 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,812 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,978 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,381 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,935 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,072 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,612 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,184 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,940 |
| Geography by Picture - B | 0 | - | 4.42 | 55,446 |
| Geography by Picture - H | 0 | - | 4.50 | 58,071 |
| Geography by Picture - N | 0 | - | 4.45 | 42,068 |
| Geography by Picture - R | 0 | - | 4.55 | 40,897 |
| Geography by Picture - T | 0 | - | 4.54 | 57,705 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,043 |
| Flags of Oceania | 0 | - | 5.00 | 255,857 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,074 |
| Flags of WW1 | 0 | - | 4.60 | 38,014 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 26,973 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,533 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,195 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,541 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,936 |
| Boundary Waters | 0 | - | 4.92 | 88,098 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,865 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,415 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,486 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,938 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,844 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,001,047 |
| Landlocked Countries | 0 | - | 4.99 | 414,604 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 555,784 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,154 |
| Satellite Images #1 | 0 | - | 4.46 | 129,066 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,033 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,687 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,687 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,837 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,453 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,750 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,404 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,724,969 |
| Merged Countries #2 | 0 | - | 4.96 | 98,542 |
| Merged Countries #6 | 0 | - | 4.90 | 72,793 |
| Merged Countries #7 | 0 | - | 4.92 | 82,041 |
| Geography by Picture - A | 0 | - | 4.39 | 60,074 |
| Geography by Picture - D | 0 | - | 4.15 | 45,524 |
| Geography by Picture - F | 0 | - | 4.31 | 50,852 |
| Geography by Picture - G | 0 | - | 4.38 | 47,821 |
| Geography by Picture - J | 0 | - | 4.16 | 38,351 |
| Geography by Picture - K | 0 | - | 4.29 | 33,034 |
| Geography by Picture - C | 0 | - | 4.31 | 56,937 |
| Geography by Picture - L | 0 | - | 4.37 | 58,790 |
| Geography by Picture - M | 0 | - | 4.14 | 40,361 |
| Geography by Picture - P | 0 | - | 4.24 | 42,319 |
| Geography by Picture - S | 0 | - | 4.38 | 46,932 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,103 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,202 |
| Islands by Picture | 0 | - | 4.29 | 106,061 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,234 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,111 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,989 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,215 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,193 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,103 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,379 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,491 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,348 |
| Island Countries | 0 | - | 4.99 | 708,014 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,002 |
| Himalayan Countries | 0 | - | 4.95 | 135,710 |
| Andean Countries | 0 | - | 4.94 | 83,030 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,378 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,440 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,079 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,737 |
| Danube Countries | 0 | - | 4.97 | 71,184 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,901 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,640 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,706 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,609 |
| European Landlocked Countries | 0 | - | 4.99 | 145,880 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,367 |
| Countries with the Most Species | 0 | - | 4.99 | 95,299 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,535 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,238 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,406 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,019 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,023 |
| Countries in the Alps | 0 | - | 4.86 | 116,986 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,683 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,461 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,107 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,513 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,298 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,701 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,843 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,598 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,153 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,232 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,102 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,539 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,831 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,296 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,738 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,312 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,941 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,854 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,000 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,683 |
