| Countries of the World Quiz | 0 | - | 5.00 | 46,846,250 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,959 |
| NATO Countries | 0 | - | 4.98 | 275,047 |
| EU Countries Quiz | 0 | - | 4.99 | 269,382 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,419 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,605 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,740 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,549 |
| Countries with NO Military | 0 | - | 4.97 | 61,046 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,823 |
| Landlocked Countries | 0 | - | 4.99 | 412,828 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,016 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,231 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,210 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,889 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,390 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,290 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,818 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,397 |
| Flags that are Red & White Only | 0 | - | 4.97 | 144,930 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,187 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,051 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,123 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,590 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 73,980 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,367 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,347 |
| Pixelated World Map | 0 | - | 5.00 | 141,731 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,507 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,786 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,569 |
| Buddhist Countries | 0 | - | 4.96 | 142,816 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,247 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,547 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,584 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,803 |
| 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 | 63,778 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,356 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,164 |
| Every Country Shape | 0 | - | 5.00 | 457,908 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,385 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,797 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,224 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,951 |
| World Currency Quiz | 0 | - | 4.92 | 297,722 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,524 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,641 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,211 |
| Himalayan Countries | 0 | - | 4.95 | 135,032 |
| Andean Countries | 0 | - | 4.94 | 82,650 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,074 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,971 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,746 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,453 |
| Danube Countries | 0 | - | 4.97 | 70,986 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,631 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,273 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,183 |
| European Landlocked Countries | 0 | - | 4.99 | 145,659 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,035 |
| Countries with the Most Species | 0 | - | 4.99 | 95,180 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,179 |
| 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 | 58,905 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,500 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,861 |
| Countries in the Alps | 0 | - | 4.87 | 116,675 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,459 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,052 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,316 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,932 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,456 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,675 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,113 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,963 |
| 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 | 103,356 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,667 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,848 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,554 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,196 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,657 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,798 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,340 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,529 |
| Largest Countries By Category | 0 | - | 4.97 | 156,596 |
| Countries by Countries | 0 | - | 4.96 | 62,156 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,929 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,648 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,963 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,806 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,953 |
| Island Countries | 0 | - | 4.99 | 707,206 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,252 |
| Northernmost Countries | 0 | - | 4.99 | 357,199 |
| Countries of South America | 0 | - | 5.00 | 913,251 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,432 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,844,831 |
| "Land" Countries | 0 | - | 4.98 | 333,398 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,425 |
| Countries that Start with B | 0 | - | 4.95 | 2,277,819 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,608 |
| Countries that Start with D | 0 | - | 4.96 | 700,415 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,162 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,345 |
| Countries that Start with H | 0 | - | 4.96 | 596,976 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,095 |
| Countries that Start with J | 0 | - | 4.98 | 595,048 |
| Countries that Start with K | 0 | - | 4.96 | 808,541 |
| Countries that Start with L | 0 | - | 4.98 | 1,081,840 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,692 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,535 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,077 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,366 |
| Countries that Start with U | 0 | - | 4.97 | 898,965 |
| Countries that Start with V | 0 | - | 4.98 | 604,475 |
| Countries that Start with F | 0 | - | 4.83 | 611,403 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,140 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,244 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,011 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,752 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,864 |
| Orthodox Countries | 0 | - | 4.91 | 130,239 |
| Richest Island Countries | 0 | - | 4.84 | 99,357 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,877 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,904 |
| Battle to Country | 0 | - | 4.91 | 52,420 |
| Monarchies of Europe | 0 | - | 4.90 | 97,192 |
| Monarchies of Asia | 0 | - | 4.97 | 70,529 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,227 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,507 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,052 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,243 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,395 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,375 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,783 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,762 |
| Country Shapes Quiz #5 | 0 | - | 4.92 | 158,299 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 33,997 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,177 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,514 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,107 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,166 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,924 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,446 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,928 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,144 |
| Countries with the Most Exports | 0 | - | 4.96 | 153,987 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,299 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,433 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,518 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,657 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,787 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,575 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,455 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,712 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,309 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,646 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,849 |
| Countries with Megacities | 0 | - | 4.99 | 246,128 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,761 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,726 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,228 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,660 |
| Countries by Official Language | 0 | - | 4.95 | 192,575 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,843 |
| Countries in their Native Language | 0 | - | 4.99 | 196,453 |
| Independence from Whom | 0 | - | 4.99 | 209,434 |
| Subdivisions by Country | 0 | - | 4.86 | 50,030 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,577 |
| Megadiverse Countries | 0 | - | 4.97 | 133,827 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,636 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,874 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,369 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,830 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,528 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,582 |
| 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 | 44,710 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,362 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,358 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,423 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,437 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,975 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 90,992 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,646 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,316 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,221 |
| World Map Quiz | 0 | - | 4.81 | 63,348 |
