| Majority Muslim Countries | 0 | - | 4.98 | 368,400 |
| NATO Countries | 0 | - | 4.98 | 275,577 |
| EU Countries Quiz | 0 | - | 4.99 | 269,802 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,825 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,151 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,997 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,715 |
| Countries with NO Military | 0 | - | 4.97 | 61,147 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,892 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,900,920 |
| Landlocked Countries | 0 | - | 4.99 | 413,379 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,292 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,922 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,052 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,734 |
| Every Country Shape | 0 | - | 5.00 | 458,707 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,783 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,410 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,327 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,940 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,437 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,673 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,146 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,818 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,324 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,940 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,575 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,977 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,234 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,711 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,102 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,568 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,586 |
| Pixelated World Map | 0 | - | 5.00 | 142,401 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,336 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,691 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,758 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,545 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,247 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,891 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,652 |
| Buddhist Countries | 0 | - | 4.96 | 142,921 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,358 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,670 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,719 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,944 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,345 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,267 |
| World Coats of Arms | 0 | - | 4.99 | 63,839 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,040 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,588 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,021 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,603 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,760 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,358 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,485 |
| Himalayan Countries | 0 | - | 4.95 | 135,269 |
| Andean Countries | 0 | - | 4.94 | 82,782 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,191 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,136 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,855 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,563 |
| Danube Countries | 0 | - | 4.97 | 71,060 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,727 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,514 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,418 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,343 |
| European Landlocked Countries | 0 | - | 4.99 | 145,727 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,167 |
| Countries with the Most Species | 0 | - | 4.99 | 95,231 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,306 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,560 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,933 |
| Countries in the Alps | 0 | - | 4.86 | 116,783 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,532 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,212 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,400 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,129 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,263 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,968 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,545 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,731 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,164 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,029 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,187 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,027 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,427 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,718 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,730 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,014 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,617 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,241 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,988 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,745 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,154 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,580 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,586 |
| Largest Countries By Category | 0 | - | 4.97 | 156,716 |
| Orthodox Countries | 0 | - | 4.91 | 130,350 |
| Countries by Countries | 0 | - | 4.96 | 62,237 |
| Richest Island Countries | 0 | - | 4.84 | 99,484 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,003 |
| Battle to Country | 0 | - | 4.91 | 52,498 |
| Monarchies of Europe | 0 | - | 4.90 | 97,291 |
| Monarchies of Asia | 0 | - | 4.97 | 70,589 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,507 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,748 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,260 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,343 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,396 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,957 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,542 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,733 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,424 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,286 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,180 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 161,872 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,349 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,301 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,623 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,232 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,271 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,007 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,533 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,016 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,245 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,132 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,466 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,528 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,625 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,014 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,917 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,690 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,268 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,393 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,916 |
| Countries that Start with D | 0 | - | 4.96 | 701,272 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,210 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,453 |
| Countries that Start with H | 0 | - | 4.96 | 597,728 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,037 |
| Countries that Start with J | 0 | - | 4.98 | 595,809 |
| Countries that Start with K | 0 | - | 4.97 | 809,211 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,642 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,500 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,324 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,190 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,024 |
| Countries that Start with U | 0 | - | 4.97 | 899,786 |
| Countries that Start with V | 0 | - | 4.98 | 604,954 |
| Countries that Start with F | 0 | - | 4.83 | 612,016 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,070 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,566 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,869 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,425 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,691 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,580 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,047 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,717 |
| Island Countries | 0 | - | 4.99 | 707,523 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,658 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,184 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,180 |
| Northernmost Countries | 0 | - | 4.99 | 357,597 |
| Countries of South America | 0 | - | 5.00 | 914,319 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,984 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,511 |
| "Land" Countries | 0 | - | 4.98 | 333,578 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,062 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,811 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,302 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,564 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,285 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,549 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,503 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,778 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,584 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 27,969 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,223,297 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,220 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,098 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,482 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,226 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,039 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,423 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,598 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,082 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,649 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,523 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,054 |
| Countries with Megacities | 0 | - | 4.99 | 246,631 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,980 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,837 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,407 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,780 |