| Countries of the World Quiz | 0 | - | 5.00 | 47,475,641 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,502 |
| NATO Countries | 0 | - | 4.98 | 280,555 |
| EU Countries Quiz | 0 | - | 4.99 | 274,407 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,482 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,355 |
| Top Five Countries by Religion | 0 | - | 4.93 | 171,622 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,577 |
| Countries with NO Military | 0 | - | 4.97 | 62,366 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,627 |
| Landlocked Countries | 0 | - | 4.99 | 420,741 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,508 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,262 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,875 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,714 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,973 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,875 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,102 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,584 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,384 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,475 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,145 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,298 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,437 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,570 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,801 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,628 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,592 |
| Pixelated World Map | 0 | - | 5.00 | 143,418 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 320,773 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,269 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,138 |
| Buddhist Countries | 0 | - | 4.96 | 144,373 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,474 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,807 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,012 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,110 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,941 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,784 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,514 |
| World Coats of Arms | 0 | - | 4.99 | 64,563 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,240 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,824 |
| Every Country Shape | 0 | - | 5.00 | 465,687 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,507 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,603 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,934 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,485 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,964 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,487 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,830 |
| Himalayan Countries | 0 | - | 4.95 | 138,168 |
| Andean Countries | 0 | - | 4.95 | 84,304 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,528 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,404 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,159 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,594 |
| Danube Countries | 0 | - | 4.97 | 71,853 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,828 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,260 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,018 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,472 |
| European Landlocked Countries | 0 | - | 4.99 | 146,994 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,403 |
| Countries with the Most Species | 0 | - | 4.99 | 103,109 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,560 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,518 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,667 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,129 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,522 |
| Countries in the Alps | 0 | - | 4.87 | 117,987 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,806 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,760 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,469 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,337 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,840 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,490 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,362 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,716 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,086 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,384 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,587 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,705 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,840 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,295 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,724 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,125 |
| Largest Countries By Category | 0 | - | 4.97 | 157,962 |
| Countries by Countries | 0 | - | 4.97 | 63,038 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,226 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,529 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,464 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,106 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,378 |
| Island Countries | 0 | - | 4.99 | 710,511 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,141 |
| Northernmost Countries | 0 | - | 4.99 | 361,333 |
| Countries of South America | 0 | - | 5.00 | 925,345 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,372 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,535 |
| "Land" Countries | 0 | - | 4.98 | 336,747 |
| Countries that Start with A | 0 | - | 4.98 | 2,163,197 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,878 |
| Countries that Start with C | 0 | - | 4.96 | 1,822,500 |
| Countries that Start with D | 0 | - | 4.96 | 709,928 |
| Countries that Start with E | 0 | - | 4.95 | 1,377,532 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,695 |
| Countries that Start with H | 0 | - | 4.96 | 604,976 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,583 |
| Countries that Start with J | 0 | - | 4.98 | 602,667 |
| Countries that Start with K | 0 | - | 4.97 | 816,035 |
| Countries that Start with L | 0 | - | 4.98 | 1,091,009 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,994 |
| Countries that Start with P | 0 | - | 4.94 | 1,216,390 |
| Countries that Start with S | 0 | - | 4.98 | 1,755,206 |
| Countries that Start with T | 0 | - | 4.90 | 1,010,063 |
| Countries that Start with U | 0 | - | 4.97 | 904,679 |
| Countries that Start with V | 0 | - | 4.98 | 609,482 |
| Countries that Start with F | 0 | - | 4.83 | 617,805 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,992 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,311 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,256 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,287 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,475 |
| Orthodox Countries | 0 | - | 4.92 | 131,988 |
| Richest Island Countries | 0 | - | 4.85 | 100,568 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,266 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,904 |
| Battle to Country | 0 | - | 4.91 | 53,362 |
| Monarchies of Europe | 0 | - | 4.90 | 98,172 |
| Monarchies of Asia | 0 | - | 4.97 | 71,105 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 236,154 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 225,129 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 192,246 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,866 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,904 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,991 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,589 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,205 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 36,904 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,497 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,541 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,177 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,340 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,684 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,206 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,897 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,429 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,444 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,751 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,430 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,476 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,678 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,329 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,566 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,786 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,227 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,395 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,975 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,533 |
| Countries with Megacities | 0 | - | 4.99 | 263,575 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,375 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,651 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,325 |
| Countries by Official Language | 0 | - | 4.95 | 194,983 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,005 |
| Countries in their Native Language | 0 | - | 4.99 | 198,487 |
| Independence from Whom | 0 | - | 4.99 | 211,761 |
| Subdivisions by Country | 0 | - | 4.86 | 50,371 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,015 |
| Megadiverse Countries | 0 | - | 4.96 | 134,902 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,827 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,273 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,856 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,064 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,944 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,246 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,573 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,382 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,111 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,882 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,424 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,207 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,173 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,760 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,927 |
| World Map Quiz | 0 | - | 4.81 | 64,901 |
