| Countries of the World Quiz | 0 | - | 5.00 | 46,888,276 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,287 |
| NATO Countries | 0 | - | 4.98 | 275,476 |
| EU Countries Quiz | 0 | - | 4.99 | 269,719 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,747 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,032 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,944 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,683 |
| Countries with NO Military | 0 | - | 4.97 | 61,132 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,880 |
| Landlocked Countries | 0 | - | 4.99 | 413,247 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,237 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,378 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,303 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,928 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,428 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,624 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,110 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,738 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,037 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,510 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,835 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,215 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,689 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,079 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,543 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,556 |
| Pixelated World Map | 0 | - | 5.00 | 142,368 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,834 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,871 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,640 |
| Buddhist Countries | 0 | - | 4.96 | 142,892 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,344 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,651 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,706 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,921 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,341 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,265 |
| World Coats of Arms | 0 | - | 4.99 | 63,819 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,930 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,656 |
| Every Country Shape | 0 | - | 5.00 | 458,470 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,719 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,998 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,270 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,014 |
| World Currency Quiz | 0 | - | 4.92 | 298,173 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,594 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,742 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,416 |
| Himalayan Countries | 0 | - | 4.95 | 135,202 |
| Andean Countries | 0 | - | 4.94 | 82,750 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,164 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,103 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,829 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,537 |
| Danube Countries | 0 | - | 4.97 | 71,042 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,705 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,498 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,387 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,312 |
| European Landlocked Countries | 0 | - | 4.99 | 145,712 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,136 |
| Countries with the Most Species | 0 | - | 4.99 | 95,222 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,283 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,354 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,937 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,547 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,914 |
| Countries in the Alps | 0 | - | 4.87 | 116,761 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,522 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,174 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,981 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,384 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,108 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,966 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,522 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,723 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,025 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,015 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,181 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,019 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,409 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,707 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,718 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,983 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,604 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,234 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,731 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,059 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,519 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,573 |
| Largest Countries By Category | 0 | - | 4.97 | 156,687 |
| Countries by Countries | 0 | - | 4.96 | 62,219 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,950 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,721 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,435 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,998 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,513 |
| Island Countries | 0 | - | 4.99 | 707,456 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,975 |
| Northernmost Countries | 0 | - | 4.99 | 357,514 |
| Countries of South America | 0 | - | 5.00 | 914,078 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,598 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,905 |
| "Land" Countries | 0 | - | 4.98 | 333,537 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,842 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,011 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,638 |
| Countries that Start with D | 0 | - | 4.96 | 701,071 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,949 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,175 |
| Countries that Start with H | 0 | - | 4.96 | 597,557 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,822 |
| Countries that Start with J | 0 | - | 4.98 | 595,626 |
| Countries that Start with K | 0 | - | 4.96 | 809,044 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,458 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,307 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,153 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,947 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,888 |
| Countries that Start with U | 0 | - | 4.97 | 899,683 |
| Countries that Start with V | 0 | - | 4.98 | 604,856 |
| Countries that Start with F | 0 | - | 4.83 | 611,864 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,852 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,333 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,227 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,924 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,961 |
| Orthodox Countries | 0 | - | 4.91 | 130,324 |
| Richest Island Countries | 0 | - | 4.84 | 99,463 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,268 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,985 |
| Battle to Country | 0 | - | 4.91 | 52,480 |
| Monarchies of Europe | 0 | - | 4.90 | 97,268 |
| Monarchies of Asia | 0 | - | 4.97 | 70,572 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,432 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,691 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,216 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,362 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,526 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,415 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,193 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,110 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 161,442 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,282 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,278 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,607 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,202 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,250 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,987 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,522 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,000 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,220 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,100 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,427 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,512 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,605 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,944 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,889 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,673 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,544 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,837 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,406 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,686 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,982 |
| Countries with Megacities | 0 | - | 4.99 | 246,490 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,898 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,788 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,362 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,745 |
| Countries by Official Language | 0 | - | 4.95 | 192,692 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,013 |
| Countries in their Native Language | 0 | - | 4.99 | 196,551 |
| Independence from Whom | 0 | - | 4.99 | 209,588 |
| Subdivisions by Country | 0 | - | 4.86 | 50,046 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,671 |
| Megadiverse Countries | 0 | - | 4.97 | 133,861 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,725 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,901 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,403 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,596 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,969 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,817 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,114 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,200 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,731 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,488 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,393 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,468 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,484 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,643 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,001 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,042 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,777 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,460 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,284 |
| World Map Quiz | 0 | - | 4.81 | 63,441 |
