| Countries of the World Quiz | 0 | - | 5.00 | 47,424,459 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,025 |
| NATO Countries | 0 | - | 4.98 | 280,077 |
| EU Countries Quiz | 0 | - | 4.99 | 273,725 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,117 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 272,835 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,244 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,348 |
| Countries with NO Military | 0 | - | 4.97 | 62,197 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,547 |
| Landlocked Countries | 0 | - | 4.99 | 420,022 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,310 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,098 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,529 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,449 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,794 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,580 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,833 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,343 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,177 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,226 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,943 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,058 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,343 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,503 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,757 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,485 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,451 |
| Pixelated World Map | 0 | - | 5.00 | 143,346 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,479 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,130 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,082 |
| Buddhist Countries | 0 | - | 4.96 | 144,272 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,386 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,714 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,926 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,023 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,842 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,738 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,486 |
| World Coats of Arms | 0 | - | 4.99 | 64,467 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 906,958 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,634 |
| Every Country Shape | 0 | - | 5.00 | 464,964 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,289 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,473 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,764,523 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,439 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,925 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,415 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,482 |
| Himalayan Countries | 0 | - | 4.95 | 137,901 |
| Andean Countries | 0 | - | 4.95 | 84,164 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,376 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,955 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,031 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,483 |
| Danube Countries | 0 | - | 4.97 | 71,771 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,714 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,170 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,866 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,950 |
| European Landlocked Countries | 0 | - | 4.99 | 146,908 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,298 |
| Countries with the Most Species | 0 | - | 4.99 | 103,042 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,449 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,469 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,638 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,402 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,081 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,470 |
| Countries in the Alps | 0 | - | 4.87 | 117,887 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 97,404 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,609 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,508 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,394 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,243 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,804 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,406 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,287 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,044 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,656 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,547 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,390 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,019 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,311 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,316 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,445 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,141 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,646 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,713 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,943 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,529 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,068 |
| Largest Countries By Category | 0 | - | 4.97 | 157,846 |
| Countries by Countries | 0 | - | 4.97 | 62,959 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,191 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,452 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,936 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,921 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,965 |
| Island Countries | 0 | - | 4.99 | 710,210 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,047,341 |
| Northernmost Countries | 0 | - | 4.99 | 361,023 |
| Countries of South America | 0 | - | 5.00 | 924,469 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,320 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,425 |
| "Land" Countries | 0 | - | 4.98 | 336,085 |
| Countries that Start with A | 0 | - | 4.98 | 2,161,674 |
| Countries that Start with B | 0 | - | 4.95 | 2,293,403 |
| Countries that Start with C | 0 | - | 4.96 | 1,821,276 |
| Countries that Start with D | 0 | - | 4.96 | 709,079 |
| Countries that Start with E | 0 | - | 4.95 | 1,376,562 |
| Countries that Start with G | 0 | - | 4.97 | 1,502,622 |
| Countries that Start with H | 0 | - | 4.96 | 604,350 |
| Countries that Start with I | 0 | - | 4.92 | 1,287,547 |
| Countries that Start with J | 0 | - | 4.98 | 602,060 |
| Countries that Start with K | 0 | - | 4.97 | 815,377 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,227 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,221 |
| Countries that Start with P | 0 | - | 4.94 | 1,215,673 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,169 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,466 |
| Countries that Start with U | 0 | - | 4.97 | 904,198 |
| Countries that Start with V | 0 | - | 4.98 | 609,138 |
| Countries that Start with F | 0 | - | 4.83 | 617,282 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,117 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,215 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,122 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,159 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,340 |
| Orthodox Countries | 0 | - | 4.92 | 131,842 |
| Richest Island Countries | 0 | - | 4.84 | 100,479 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,457 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,812 |
| Battle to Country | 0 | - | 4.91 | 53,291 |
| Monarchies of Europe | 0 | - | 4.90 | 98,099 |
| Monarchies of Asia | 0 | - | 4.97 | 71,070 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 235,980 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 224,945 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,117 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,752 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,865 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,836 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,448 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,101 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 36,668 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,422 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,471 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,126 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,280 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,621 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,161 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,852 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,319 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,336 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,632 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,383 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,401 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,247 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,245 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,500 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,661 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,124 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,311 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,940 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,354 |
| Countries with Megacities | 0 | - | 4.99 | 262,919 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,191 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,171 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,492 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,214 |
| Countries by Official Language | 0 | - | 4.95 | 194,857 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,824 |
| Countries in their Native Language | 0 | - | 4.99 | 198,395 |
| Independence from Whom | 0 | - | 4.99 | 211,612 |
| Subdivisions by Country | 0 | - | 4.86 | 50,340 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,909 |
| Megadiverse Countries | 0 | - | 4.96 | 134,848 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,728 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,235 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,815 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,051 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,853 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,454 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,145 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,911 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,545 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,030 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,267 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,776 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,062 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,844 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,228 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,396 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,134 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,038 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,532 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,876 |
| World Map Quiz | 0 | - | 4.81 | 64,796 |
