| Countries of the World Quiz | 0 | - | 5.00 | 46,847,973 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,966 |
| NATO Countries | 0 | - | 4.98 | 275,064 |
| EU Countries Quiz | 0 | - | 4.99 | 269,390 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,437 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,625 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,749 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,556 |
| Countries with NO Military | 0 | - | 4.97 | 61,048 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,824 |
| Landlocked Countries | 0 | - | 4.99 | 412,842 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,026 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,235 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,213 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,890 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,392 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,307 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,835 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,417 |
| Flags that are Red & White Only | 0 | - | 4.97 | 146,346 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,214 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,096 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,133 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,596 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 73,985 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,380 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,361 |
| Pixelated World Map | 0 | - | 5.00 | 141,767 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,515 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,789 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,573 |
| Buddhist Countries | 0 | - | 4.96 | 142,816 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,250 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,552 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,590 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,810 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,311 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,251 |
| World Coats of Arms | 0 | - | 4.99 | 63,780 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,388 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,197 |
| Every Country Shape | 0 | - | 5.00 | 457,932 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,407 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,817 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,399 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,954 |
| World Currency Quiz | 0 | - | 4.92 | 297,736 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,528 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,643 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,218 |
| Himalayan Countries | 0 | - | 4.95 | 135,042 |
| Andean Countries | 0 | - | 4.94 | 82,654 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,077 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,974 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,749 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,454 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,633 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,279 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,188 |
| European Landlocked Countries | 0 | - | 4.99 | 145,662 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,042 |
| Countries with the Most Species | 0 | - | 4.99 | 95,183 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,186 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,906 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,507 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,678 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,464 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,059 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,317 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,061 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,933 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,464 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,682 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,218 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,964 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,357 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,670 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,852 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,562 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,198 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,659 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,810 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,349 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,533 |
| Largest Countries By Category | 0 | - | 4.97 | 156,600 |
| Countries by Countries | 0 | - | 4.96 | 62,159 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,930 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,648 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,972 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,813 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,963 |
| Island Countries | 0 | - | 4.99 | 707,215 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,275 |
| Northernmost Countries | 0 | - | 4.99 | 357,215 |
| Countries of South America | 0 | - | 5.00 | 913,307 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,506 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,988 |
| "Land" Countries | 0 | - | 4.98 | 333,404 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,493 |
| Countries that Start with B | 0 | - | 4.95 | 2,277,882 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,659 |
| Countries that Start with D | 0 | - | 4.96 | 700,439 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,202 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,373 |
| Countries that Start with H | 0 | - | 4.96 | 597,006 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,129 |
| Countries that Start with J | 0 | - | 4.98 | 595,074 |
| Countries that Start with K | 0 | - | 4.96 | 808,571 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,861 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,714 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,555 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,105 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,381 |
| Countries that Start with U | 0 | - | 4.97 | 899,001 |
| Countries that Start with V | 0 | - | 4.98 | 604,486 |
| Countries that Start with F | 0 | - | 4.83 | 611,421 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,173 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,247 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,020 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,762 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,864 |
| Orthodox Countries | 0 | - | 4.91 | 130,245 |
| Richest Island Countries | 0 | - | 4.84 | 99,358 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,932 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,908 |
| Battle to Country | 0 | - | 4.91 | 52,423 |
| Monarchies of Europe | 0 | - | 4.90 | 97,198 |
| Monarchies of Asia | 0 | - | 4.97 | 70,531 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,236 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,515 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,060 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,248 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,402 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,376 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,805 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,784 |
| Country Shapes Quiz #5 | 0 | - | 4.92 | 158,523 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,008 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,179 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,517 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,109 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,167 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,925 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,446 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,931 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,146 |
| Countries with the Most Exports | 0 | - | 4.96 | 153,992 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,305 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,439 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,521 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,667 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,793 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,580 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,457 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,718 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,312 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,647 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,851 |
| Countries with Megacities | 0 | - | 4.99 | 246,146 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,769 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,727 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,236 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,663 |
| Countries by Official Language | 0 | - | 4.95 | 192,579 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,851 |
| Countries in their Native Language | 0 | - | 4.99 | 196,457 |
| Independence from Whom | 0 | - | 4.99 | 209,444 |
| Subdivisions by Country | 0 | - | 4.86 | 50,032 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,579 |
| Megadiverse Countries | 0 | - | 4.97 | 133,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,641 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,875 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,832 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,529 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,584 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,058 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,173 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,366 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,359 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,977 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 90,995 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,651 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,327 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,223 |
| World Map Quiz | 0 | - | 4.81 | 63,349 |
