| All Country Flags of the World | 0 | - | 5.00 | 3,715,622 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,282 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,361 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,564 |
| Flags with Crescents | 0 | - | 4.98 | 171,410 |
| Country Flag Trivia | 0 | - | 4.81 | 58,076 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,938 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,468 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,645 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,977 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,016 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,511 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,180 |
| Flags of North and South America | 0 | - | 4.99 | 377,180 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,391 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,383 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,949 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,222 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,643 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,362 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,700 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,439 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,375 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,383 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,312 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,374 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,162 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,760 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,180 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,115 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,508 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,941 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,092 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,437 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,683 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,760 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,720 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,799 |
| Flags to Languages | 0 | - | 4.95 | 174,538 |
| Former Flags | 0 | - | 4.97 | 108,624 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,251 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,051 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,024 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,608 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,234 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,288 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,615 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,388 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,465 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,569 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,127 |
| Flag Maths | 0 | - | 4.61 | 57,849 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,892 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,193 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,274 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,071 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,650 |
| World Coats of Arms | 0 | - | 4.99 | 65,176 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,883 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,752 |
| Similar Flags #1 | 0 | - | 4.75 | 130,813 |
| Similar Flags #2 | 0 | - | 4.74 | 138,093 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,030 |
| Emoji Flags | 0 | - | 4.35 | 44,295 |
| Countries by Road Signs | 0 | - | 4.98 | 54,367 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,400 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,139 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,171 |
| Select the World Flags | 0 | - | 4.28 | 38,000 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,548 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,786 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,499 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,542 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,136 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,709 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,431 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,069 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,228 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,702 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,583 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,578 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,918 |
| Pixelated World Map | 0 | - | 5.00 | 144,126 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,926 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,730,196 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,829 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,230 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,429 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,578 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,129 |
| Flags of Oceania | 0 | - | 5.00 | 262,824 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,624 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,468 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,471 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,790 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,493 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,444 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,415 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,802 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,385 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,703 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,232 |
| Geography by Picture - B | 0 | - | 4.42 | 55,785 |
| Geography by Picture - H | 0 | - | 4.50 | 58,384 |
| Geography by Picture - N | 0 | - | 4.45 | 42,344 |
| Geography by Picture - R | 0 | - | 4.56 | 41,150 |
| Geography by Picture - T | 0 | - | 4.54 | 58,006 |
| Flags of WW1 | 0 | - | 4.60 | 38,710 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,323 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,989 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,652 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,760 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,724 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,808 |
| Name a Valid African Country | 0 | - | 4.98 | 155,059 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,918 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,899 |
| Boundary Waters | 0 | - | 4.92 | 88,779 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,719 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,370 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,986 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,990 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,895,449 |
| Landlocked Countries | 0 | - | 4.99 | 426,100 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,104 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,086 |
| Random Point on Land to European Country | 0 | - | 4.94 | 78,057 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,811 |
| Merged Countries #2 | 0 | - | 4.96 | 99,895 |
| Merged Countries #4 | 0 | - | 4.81 | 94,137 |
| Merged Countries #6 | 0 | - | 4.90 | 73,821 |
| Merged Countries #7 | 0 | - | 4.93 | 83,167 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,462 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,457 |
| Satellite Images #1 | 0 | - | 4.46 | 130,010 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,702 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,403 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,255 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,230 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,595 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,094 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,935 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,419 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,019 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,033 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 42,291 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,744 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,725 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,482 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,274 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,386 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,427 |
| Which City in Europe? | 0 | - | 4.83 | 107,907 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,388 |
| Himalayan Countries | 0 | - | 4.93 | 140,342 |
| Andean Countries | 0 | - | 4.94 | 85,520 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,667 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,080 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,239 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,471 |
| Danube Countries | 0 | - | 4.97 | 72,432 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,626 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,862 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,171 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,652 |
| European Landlocked Countries | 0 | - | 4.99 | 147,628 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,339 |
| Countries with the Most Species | 0 | - | 4.99 | 103,582 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,436 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,856 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,591 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,035 |
| Countries in the Alps | 0 | - | 4.87 | 118,813 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,687 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,917 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,978 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,985 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,431 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,441 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,198 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,893 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,575 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,819 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,902 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,633 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,198 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,707 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,811 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,206 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,528 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
