| Countries of the World Quiz | 0 | - | 5.00 | 46,922,702 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,554 |
| NATO Countries | 0 | - | 4.98 | 275,776 |
| EU Countries Quiz | 0 | - | 4.99 | 269,961 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,955 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,345 |
| Top Five Countries by Religion | 0 | - | 4.93 | 169,064 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,770 |
| Countries with NO Military | 0 | - | 4.97 | 61,178 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,912 |
| Landlocked Countries | 0 | - | 4.99 | 413,654 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,388 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,467 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,372 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,966 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,450 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,755 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,219 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,910 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,374 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,253 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,658 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,210 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,274 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,754 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,145 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,630 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,643 |
| Pixelated World Map | 0 | - | 5.00 | 142,443 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 317,038 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,932 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,675 |
| Buddhist Countries | 0 | - | 4.96 | 142,959 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,396 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,700 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,757 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,979 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,361 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,279 |
| World Coats of Arms | 0 | - | 4.99 | 63,869 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,239 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,866 |
| Every Country Shape | 0 | - | 5.00 | 458,994 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,887 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 122,096 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,118 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,040 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,625 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,792 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,604 |
| Himalayan Countries | 0 | - | 4.95 | 135,360 |
| Andean Countries | 0 | - | 4.94 | 82,830 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,221 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,219 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,907 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,613 |
| Danube Countries | 0 | - | 4.97 | 71,082 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,539 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,492 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,407 |
| European Landlocked Countries | 0 | - | 4.99 | 145,757 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,218 |
| Countries with the Most Species | 0 | - | 4.99 | 95,242 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,352 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,199 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,370 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,958 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,826 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,569 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,259 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,013 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,423 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,166 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,004 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,582 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,760 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,301 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,061 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,196 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,045 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,454 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,750 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,755 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,071 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,649 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,254 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,317 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,680 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,604 |
| Largest Countries By Category | 0 | - | 4.97 | 156,763 |
| Countries by Countries | 0 | - | 4.96 | 62,257 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,771 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,996 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,131 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,864 |
| Island Countries | 0 | - | 4.99 | 707,636 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,482 |
| Northernmost Countries | 0 | - | 4.99 | 357,740 |
| Countries of South America | 0 | - | 5.00 | 914,825 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,537 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,466 |
| "Land" Countries | 0 | - | 4.98 | 333,663 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,899 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,935 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,370 |
| Countries that Start with D | 0 | - | 4.96 | 701,573 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,555 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,828 |
| Countries that Start with H | 0 | - | 4.96 | 597,993 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,306 |
| Countries that Start with J | 0 | - | 4.98 | 596,054 |
| Countries that Start with K | 0 | - | 4.97 | 809,435 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,913 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,777 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,587 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,568 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,246 |
| Countries that Start with U | 0 | - | 4.97 | 899,944 |
| Countries that Start with V | 0 | - | 4.98 | 605,119 |
| Countries that Start with F | 0 | - | 4.83 | 612,202 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,397 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,408 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,350 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,031 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,055 |
| Orthodox Countries | 0 | - | 4.91 | 130,396 |
| Richest Island Countries | 0 | - | 4.84 | 99,523 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,418 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,044 |
| Battle to Country | 0 | - | 4.91 | 52,531 |
| Monarchies of Europe | 0 | - | 4.90 | 97,328 |
| Monarchies of Asia | 0 | - | 4.97 | 70,611 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,593 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,854 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,344 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,454 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,584 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,434 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,488 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,289 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,281 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,450 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,347 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,664 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,279 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,305 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,041 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,572 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,044 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,286 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,174 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,502 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,557 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,654 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,128 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,953 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,721 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,606 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,919 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,477 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,704 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,243 |
| Countries with Megacities | 0 | - | 4.99 | 246,942 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,136 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,982 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,553 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,874 |
| Countries by Official Language | 0 | - | 4.95 | 192,775 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,142 |
| Countries in their Native Language | 0 | - | 4.99 | 196,643 |
| Independence from Whom | 0 | - | 4.99 | 209,697 |
| Subdivisions by Country | 0 | - | 4.86 | 50,067 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,756 |
| Megadiverse Countries | 0 | - | 4.97 | 133,905 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,807 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,919 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,429 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,862 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,664 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,000 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,023 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,149 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,215 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,746 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,576 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,421 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,495 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,504 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,676 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,030 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,092 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,863 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,599 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,333 |
| World Map Quiz | 0 | - | 4.81 | 63,495 |
