| Countries with Wild Tigers | 0 | - | 4.96 | 136,150 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,738 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,791 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,826 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,945 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,577 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,628 |
| Megadiverse Countries | 0 | - | 4.96 | 134,685 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,812 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,770 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,889 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,716 |
| Countries with Fjords | 0 | - | 4.93 | 100,687 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,690 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,558 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,204 |
| Countries with More Cows than People | 0 | - | 4.45 | 61,121 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,286 |
| Countries With The Most Bird Species | 0 | - | 4.93 | 32,712 |
| Top 10 Countries with the Most Horses | 0 | - | 4.49 | 68,882 |
| Boundary Waters | 0 | - | 4.92 | 88,326 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,038 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,789 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,549 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,947 |
| North Sea Countries | 0 | - | 4.92 | 87,091 |
| Black Sea Countries | 0 | - | 4.87 | 60,542 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,261 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,369 |
| Countries With No Rivers | 0 | - | 4.96 | 76,587 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,137 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,252,690 |
| Top Countries for Shark Attacks | 0 | - | 4.46 | 45,775 |
| Landlocked Countries | 0 | - | 4.99 | 417,805 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,455 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,255 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,565 |
| African Great Lakes | 0 | - | 4.82 | 65,877 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,251 |
| North American Cat-Named Sports Teams | 0 | - | 4.43 | 33,633 |
| Animals by Skeleton Image | 0 | - | 4.80 | 46,278 |
| Animals by Close-up Image | 0 | - | 4.42 | 217,494 |
| Aquatic Mammals by Picture | 0 | - | 4.41 | 45,487 |
| Extinct Animals by Picture | 0 | - | 4.49 | 35,122 |
| Mammals by Picture #1 | 0 | - | 4.70 | 91,562 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,449 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,508 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,508 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,731 |
| World Capitals Quiz | 0 | - | 5.00 | 5,057,418 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,442 |
| Himalayan Countries | 0 | - | 4.94 | 136,943 |
| Andean Countries | 0 | - | 4.95 | 83,700 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,946 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,291 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,616 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,197 |
| Danube Countries | 0 | - | 4.97 | 71,539 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,378 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,951 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,429 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,492 |
| European Landlocked Countries | 0 | - | 4.99 | 146,433 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,967 |
| Countries with the Most Species | 0 | - | 4.99 | 102,658 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,096 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,380 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,551 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,233 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,897 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,278 |
| Countries in the Alps | 0 | - | 4.86 | 117,511 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,012 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,144 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,343 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,859 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,964 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,370 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,134 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,090 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,891 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,445 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,424 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,276 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,833 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,104 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,116 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,963 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,981 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,509 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,376 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,735 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,921 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,913 |
| Largest Countries By Category | 0 | - | 4.97 | 157,458 |
| Countries by Countries | 0 | - | 4.96 | 62,730 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,287 |
| Country Flags with the Most White | 0 | - | 4.87 | 138,045 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,123 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,445 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,213 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,749,389 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,262 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,707 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,140 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,363 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,260 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,823 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,990 |
| Longest International Borders | 0 | - | 4.99 | 264,496 |
| Countries with Three Borders | 0 | - | 4.96 | 36,403 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,849 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,946 |
| Demonym of Every Country | 0 | - | 4.91 | 59,047 |
| Name that Bug | 0 | - | 4.12 | 45,517 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,994 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,580,592 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,289 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,506 |
| Island Countries | 0 | - | 4.99 | 709,298 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,983 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,810 |
| Northernmost Countries | 0 | - | 4.99 | 359,966 |
| Countries of South America | 0 | - | 5.00 | 921,431 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,185 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,862,788 |
| "Land" Countries | 0 | - | 4.98 | 335,481 |
| Top World Languages | 0 | - | 4.92 | 818,960 |
| African Physical Geography | 0 | - | 4.51 | 31,641 |
| Asian Physical Geography | 0 | - | 4.61 | 35,467 |
| Fish by Picture #1 | 0 | - | 4.41 | 108,370 |
| North American Bird-Named Teams | 0 | - | 4.44 | 67,782 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,779 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,203 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,207 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,645 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,348 |
| Europe Map Quiz | 0 | - | 5.00 | 4,751,002 |
| All Country Flags of the World | 0 | - | 5.00 | 3,640,173 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,644 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,050 |
| "Big Five" African Game Animals | 0 | - | 4.22 | 47,328 |
| Animals A-Z by Picture | 0 | - | 4.08 | 66,256 |
| Mammals by Picture #3 | 0 | - | 4.39 | 61,999 |
| Mammals by Picture #4 | 0 | - | 4.03 | 34,059 |
| Mammals by Picture #2 | 0 | - | 4.28 | 58,110 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,305 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,271 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,036 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,619 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,441,706 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,321 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,650 |
| Countries with Megacities | 0 | - | 4.99 | 249,706 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,487 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,764 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,824 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,739 |
| Biggest Cities in the World | 0 | - | 4.91 | 795,424 |
| Biggest City by River | 0 | - | 4.41 | 52,805 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,461 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,672 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,779 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,162 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,186 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,802 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,388 |
| Countries by Capital City | 0 | - | 5.00 | 67,722 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,867 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,364 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,248 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,856 |
| Moved Capital Cities | 0 | - | 4.96 | 73,970 |
| Countries by Official Language | 0 | - | 4.95 | 194,426 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,246 |
| Countries in their Native Language | 0 | - | 4.99 | 197,990 |
| Independence from Whom | 0 | - | 4.99 | 211,094 |
| Subdivisions by Country | 0 | - | 4.86 | 50,247 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,536 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,113 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,141 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,694 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,984 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,575 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,302 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,796 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,719 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,442 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,877 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,606 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,652 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,813 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,720 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,990 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,275 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,890 |
| World Map Quiz | 0 | - | 4.81 | 64,331 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,991 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,901 |
| Countries by Founding Story | 0 | - | 4.95 | 76,976 |
