| Countries of the World Quiz | 0 | - | 5.00 | 46,863,564 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,080 |
| NATO Countries | 0 | - | 4.98 | 275,221 |
| EU Countries Quiz | 0 | - | 4.99 | 269,524 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,577 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,782 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,821 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 146,610 |
| Countries with NO Military | 0 | - | 4.97 | 61,082 |
| Countries by Number of Books Published | 0 | - | 4.95 | 71,847 |
| Landlocked Countries | 0 | - | 4.99 | 412,989 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,091 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,287 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,248 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,906 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,406 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,472 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,971 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,568 |
| Flags that are Red & White Only | 0 | - | 4.97 | 155,206 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,382 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,441 |
| Countries with the Most Tanks | 0 | - | 4.91 | 106,166 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 49,652 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,035 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,467 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,478 |
| Pixelated World Map | 0 | - | 5.00 | 142,142 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,639 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,820 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,613 |
| Buddhist Countries | 0 | - | 4.96 | 142,841 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,293 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,600 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,643 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,863 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,325 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,256 |
| World Coats of Arms | 0 | - | 4.99 | 63,795 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,602 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,398 |
| Every Country Shape | 0 | - | 5.00 | 458,124 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,543 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 121,888 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,866 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,979 |
| World Currency Quiz | 0 | - | 4.92 | 297,915 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,561 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,686 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,312 |
| Himalayan Countries | 0 | - | 4.95 | 135,109 |
| Andean Countries | 0 | - | 4.94 | 82,692 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,106 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,028 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,790 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,498 |
| Danube Countries | 0 | - | 4.97 | 71,012 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,663 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,469 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,323 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,237 |
| European Landlocked Countries | 0 | - | 4.99 | 145,682 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,075 |
| Countries with the Most Species | 0 | - | 4.99 | 95,201 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,230 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,179 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,337 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,915 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,527 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,888 |
| Countries in the Alps | 0 | - | 4.87 | 116,710 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,492 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,114 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,955 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,340 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,078 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,943 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,487 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,696 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,445 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,984 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,169 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,004 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,386 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,692 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,690 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,914 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,581 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,209 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,694 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,912 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,413 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,553 |
| Largest Countries By Category | 0 | - | 4.97 | 156,650 |
| Countries by Countries | 0 | - | 4.96 | 62,186 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,937 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,674 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,174 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,877 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,074 |
| Island Countries | 0 | - | 4.99 | 707,312 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,554 |
| Northernmost Countries | 0 | - | 4.99 | 357,335 |
| Countries of South America | 0 | - | 5.00 | 913,631 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,951 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,676 |
| "Land" Countries | 0 | - | 4.98 | 333,462 |
| Countries that Start with A | 0 | - | 4.98 | 2,145,031 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,322 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,046 |
| Countries that Start with D | 0 | - | 4.96 | 700,687 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,509 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,706 |
| Countries that Start with H | 0 | - | 4.96 | 597,213 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,391 |
| Countries that Start with J | 0 | - | 4.98 | 595,297 |
| Countries that Start with K | 0 | - | 4.96 | 808,743 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,103 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,973 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,794 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,432 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,574 |
| Countries that Start with U | 0 | - | 4.97 | 899,381 |
| Countries that Start with V | 0 | - | 4.98 | 604,637 |
| Countries that Start with F | 0 | - | 4.83 | 611,600 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,463 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,285 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,098 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,816 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,899 |
| Orthodox Countries | 0 | - | 4.91 | 130,273 |
| Richest Island Countries | 0 | - | 4.84 | 99,412 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,446 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,931 |
| Battle to Country | 0 | - | 4.91 | 52,450 |
| Monarchies of Europe | 0 | - | 4.90 | 97,227 |
| Monarchies of Asia | 0 | - | 4.97 | 70,545 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,301 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,599 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,117 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,290 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,451 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,385 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,970 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,923 |
| Country Shapes Quiz #5 | 0 | - | 4.92 | 159,943 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,109 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,215 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,555 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,141 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,204 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,950 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,478 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,961 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,175 |
| Countries with the Most Exports | 0 | - | 4.96 | 154,043 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,371 |
| Countries by Oil Consumption | 0 | - | 4.96 | 119,471 |
| Largest Economies in 2050 | 0 | - | 4.90 | 110,560 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,790 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.95 | 102,838 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.90 | 83,618 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,496 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 193,769 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 117,348 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,664 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,898 |
| Countries with Megacities | 0 | - | 4.99 | 246,283 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,826 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,751 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,280 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,690 |
| Countries by Official Language | 0 | - | 4.95 | 192,612 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,925 |
| Countries in their Native Language | 0 | - | 4.99 | 196,500 |
| Independence from Whom | 0 | - | 4.99 | 209,514 |
| Subdivisions by Country | 0 | - | 4.86 | 50,036 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,601 |
| Megadiverse Countries | 0 | - | 4.97 | 133,839 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,672 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,883 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,843 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,565 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,945 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,613 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,073 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,185 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,719 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,423 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,373 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,444 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,460 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,613 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,987 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,017 |
| Richest Countries A-Z | 0 | - | 4.92 | 101,691 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,385 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,247 |
| World Map Quiz | 0 | - | 4.81 | 63,390 |
