| Countries of the World Quiz | 0 | - | 5.00 | 47,060,645 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,932 |
| NATO Countries | 0 | - | 4.98 | 277,287 |
| EU Countries Quiz | 0 | - | 4.99 | 270,953 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,785 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,523 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,625 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 147,147 |
| Countries with NO Military | 0 | - | 4.97 | 61,389 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,055 |
| Landlocked Countries | 0 | - | 4.99 | 415,403 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,968 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,957 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,719 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,091 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,541 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,533 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,917 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,406 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,221 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,091 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,965 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,552 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,919 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,314 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,929 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,917 |
| Pixelated World Map | 0 | - | 5.00 | 142,711 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,887 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,236 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,802 |
| Buddhist Countries | 0 | - | 4.96 | 143,207 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,894 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,183 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,365 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,501 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,468 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,334 |
| World Coats of Arms | 0 | - | 4.99 | 64,033 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,033 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,400 |
| Every Country Shape | 0 | - | 5.00 | 460,608 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,522 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,467 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,212 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,171 |
| World Currency Quiz | 0 | - | 4.92 | 299,656 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,716 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,973 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,315 |
| Himalayan Countries | 0 | - | 4.95 | 135,988 |
| Andean Countries | 0 | - | 4.94 | 83,173 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,502 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,637 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,189 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,835 |
| Danube Countries | 0 | - | 4.97 | 71,271 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,003 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,714 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,872 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,824 |
| European Landlocked Countries | 0 | - | 4.99 | 145,969 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,528 |
| Countries with the Most Species | 0 | - | 4.99 | 95,348 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,656 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,270 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,441 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,069 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,718 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,077 |
| Countries in the Alps | 0 | - | 4.86 | 117,127 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,763 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,601 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,162 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,592 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,381 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,142 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,807 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,901 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,696 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,208 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,275 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,141 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,621 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,882 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,892 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,469 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,801 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,350 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,037 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,294 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,206 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,734 |
| Largest Countries By Category | 0 | - | 4.97 | 157,036 |
| Countries by Countries | 0 | - | 4.96 | 62,447 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,028 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,950 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,860 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,812 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,812 |
| Island Countries | 0 | - | 4.99 | 708,337 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,764 |
| Northernmost Countries | 0 | - | 4.99 | 358,716 |
| Countries of South America | 0 | - | 5.00 | 917,866 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,280 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,476 |
| "Land" Countries | 0 | - | 4.98 | 334,109 |
| Countries that Start with A | 0 | - | 4.98 | 2,151,020 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,589 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,282 |
| Countries that Start with D | 0 | - | 4.96 | 703,612 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,969 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,426 |
| Countries that Start with H | 0 | - | 4.96 | 599,652 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,285 |
| Countries that Start with J | 0 | - | 4.98 | 597,683 |
| Countries that Start with K | 0 | - | 4.97 | 810,932 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,832 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,749 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,403 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,195 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,643 |
| Countries that Start with U | 0 | - | 4.97 | 901,080 |
| Countries that Start with V | 0 | - | 4.98 | 606,139 |
| Countries that Start with F | 0 | - | 4.83 | 613,618 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,479 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,642 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,101 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,385 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,380 |
| Orthodox Countries | 0 | - | 4.91 | 130,677 |
| Richest Island Countries | 0 | - | 4.84 | 99,803 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,190 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,289 |
| Battle to Country | 0 | - | 4.91 | 52,693 |
| Monarchies of Europe | 0 | - | 4.90 | 97,551 |
| Monarchies of Asia | 0 | - | 4.97 | 70,734 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 234,187 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 223,347 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,830 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,795 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,249 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,544 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,920 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,676 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,218 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 35,012 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,570 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,867 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,504 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,501 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,181 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,723 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,215 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,594 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,502 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,800 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,704 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,841 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,669 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 103,496 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,931 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,902 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,263 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,726 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,775 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,916 |
| Countries with Megacities | 0 | - | 4.99 | 248,212 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,810 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,362 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,195 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,300 |
| Countries by Official Language | 0 | - | 4.95 | 193,196 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,735 |
| Countries in their Native Language | 0 | - | 4.99 | 197,029 |
| Independence from Whom | 0 | - | 4.99 | 210,169 |
| Subdivisions by Country | 0 | - | 4.86 | 50,151 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,069 |
| Megadiverse Countries | 0 | - | 4.96 | 134,454 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,195 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,015 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,547 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,908 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,883 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,131 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,335 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,453 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,304 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,787 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,933 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,521 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,624 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,585 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,798 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,124 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,298 |
| Richest Countries A-Z | 0 | - | 4.92 | 102,195 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,147 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,470 |
| World Map Quiz | 0 | - | 4.81 | 63,801 |
