| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,164 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,849 |
| Seas on the World Map | 0 | - | 4.96 | 133,810 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,740 |
| World's Longest Rivers | 0 | - | 4.87 | 121,058 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,698 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,147 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,374 |
| North Sea Countries | 0 | - | 4.92 | 86,601 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,854 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,072 |
| Countries With No Rivers | 0 | - | 4.96 | 76,026 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,790 |
| Black Sea Countries | 0 | - | 4.87 | 60,339 |
| South China Sea Countries | 0 | - | 4.78 | 57,491 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,227 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,952 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,451 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,108 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,015 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,606 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,981 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,596 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,176 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,913,217 |
| US States Quiz | 0 | - | 5.00 | 16,699,734 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,650 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,924 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,068 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,744 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,755 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,100 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,942 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,254 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,506 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,878 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,222 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,703 |
| Countries of Africa | 0 | - | 5.00 | 2,507,664 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,619 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,160 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,382 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,552 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,411 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,152 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,879 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,048 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,945 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,898 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,656 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,217 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,410 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,714 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,177 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,455 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,349 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,510 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,356 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,645 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,773 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,780 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,143 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,149 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,559 |
| Random Country to Capital | 0 | - | 4.98 | 911,536 |
| Countries that Start with U | 0 | - | 4.97 | 899,870 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,273 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,585 |
| Asia Map Quiz | 0 | - | 4.99 | 906,962 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,632 |
| Countries of South America | 0 | - | 5.00 | 914,581 |
| Island Countries | 0 | - | 4.99 | 707,585 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,289 |
| Counties of England | 0 | - | 4.97 | 789,135 |
| Top World Languages | 0 | - | 4.92 | 813,058 |
| Countries that Start with K | 0 | - | 4.97 | 809,325 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,928 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,178 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,271 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,859 |
| Countries that Start with V | 0 | - | 4.98 | 605,047 |
| US States with an Empty Map | 0 | - | 5.00 | 618,801 |
| Countries that Start with D | 0 | - | 4.96 | 701,438 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,191 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,495 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,117 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,812 |
| Countries that Start with J | 0 | - | 4.98 | 595,938 |
| Countries That Border Russia | 0 | - | 4.98 | 458,896 |
| Countries that Start with H | 0 | - | 4.96 | 597,881 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,808 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,222 |
| One Border Countries | 0 | - | 4.98 | 464,337 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,186 |
| Countries with Four Letters | 0 | - | 4.99 | 418,496 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,747 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,695 |
| Countries Bordering France | 0 | - | 4.83 | 399,016 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,806 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,249 |
| Northernmost Countries | 0 | - | 4.99 | 357,688 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,296 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,590 |
| Every Country Shape | 0 | - | 5.00 | 458,874 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,092 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,029 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,765 |
| Australia Map Quiz | 0 | - | 4.94 | 342,464 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,584 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,284 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,494 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,350 |
| Landlocked Countries | 0 | - | 4.99 | 413,522 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,351 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,072 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,844 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,377 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,406 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,521 |
| "Land" Countries | 0 | - | 4.98 | 333,628 |
| Flags of North and South America | 0 | - | 4.99 | 367,152 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,818 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,872 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,692 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,251 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,104 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,263 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,905 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,078 |
| Countries with Z | 0 | - | 4.98 | 287,859 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,899 |
| Countries that Border China | 0 | - | 4.96 | 261,809 |
| Longest International Borders | 0 | - | 4.99 | 263,533 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,266 |
| Europe Capital to Country | 0 | - | 4.99 | 247,776 |
| EU Countries Quiz | 0 | - | 4.99 | 269,892 |
| World Currency Quiz | 0 | - | 4.92 | 298,424 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,644 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,196 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,845 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,669 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,892 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,813 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,811 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,223 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,331 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,764 |
| Official Cities in the UK | 0 | - | 4.89 | 280,511 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,244 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,398 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,388 |
| Megacities on a World Map | 0 | - | 4.98 | 250,927 |
| World Capitals by Map | 0 | - | 5.00 | 283,178 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,485 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,780 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,459 |
| NATO Countries | 0 | - | 4.98 | 275,702 |
| Flags of Oceania | 0 | - | 5.00 | 255,173 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,208 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,299 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,824 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,914 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,935 |
| Countries in World War I | 0 | - | 4.88 | 226,598 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,278 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,966 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,473 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,112 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,170 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,128 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,368 |
| Countries with Megacities | 0 | - | 4.99 | 246,815 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,354 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,928 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,392 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,577 |
| Country Chain | 0 | - | 4.96 | 215,714 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,148 |
| European Countries by Clue | 0 | - | 4.92 | 182,363 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,304 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,617 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,783 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,632 |
| World's Busiest Airports | 0 | - | 4.94 | 210,406 |
| Independence from Whom | 0 | - | 4.99 | 209,666 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,458 |
| Every European Country Shape | 0 | - | 4.96 | 200,148 |
| Islands by Country #1 | 0 | - | 4.87 | 174,475 |
| Countries in their Native Language | 0 | - | 4.99 | 196,624 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,909 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,924 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,741 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,485 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,850 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,731 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,391 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,588 |
| Countries with Six Letters | 0 | - | 4.93 | 210,342 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,970 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,314 |
