| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,147 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,835 |
| Seas on the World Map | 0 | - | 4.96 | 133,799 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,738 |
| World's Longest Rivers | 0 | - | 4.87 | 121,053 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,692 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,146 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,370 |
| North Sea Countries | 0 | - | 4.92 | 86,596 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,847 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,069 |
| Countries With No Rivers | 0 | - | 4.96 | 76,020 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,785 |
| Black Sea Countries | 0 | - | 4.87 | 60,338 |
| South China Sea Countries | 0 | - | 4.78 | 57,487 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,218 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,951 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,448 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,105 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,013 |
| Mississippi River States Empty Map Quiz | 0 | - | 4.81 | 55,598 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,977 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,592 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,173 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,906,588 |
| US States Quiz | 0 | - | 5.00 | 16,697,343 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,056 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,422 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,671 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,438 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,800,444 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,874 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,274 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,097 |
| All Country Flags of the World | 0 | - | 5.00 | 3,600,775 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,708 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,063 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,557 |
| Countries of Africa | 0 | - | 5.00 | 2,507,271 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,433 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,044 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,290 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,384 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,901 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,073 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,767 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,808 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,794 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,722 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,565 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,144 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,320 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,624 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,113 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,386 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,276 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,298 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,277 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,569 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,751 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,707 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,094 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,102 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,407 |
| Random Country to Capital | 0 | - | 4.98 | 911,462 |
| Countries that Start with U | 0 | - | 4.97 | 899,827 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,120 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,454 |
| Asia Map Quiz | 0 | - | 4.99 | 906,868 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,569 |
| Countries of South America | 0 | - | 5.00 | 914,433 |
| Island Countries | 0 | - | 4.99 | 707,555 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,179 |
| Counties of England | 0 | - | 4.97 | 789,064 |
| Top World Languages | 0 | - | 4.92 | 812,936 |
| Countries that Start with K | 0 | - | 4.97 | 809,272 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,840 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,099 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,188 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,755 |
| Countries that Start with V | 0 | - | 4.98 | 604,996 |
| US States with an Empty Map | 0 | - | 5.00 | 618,708 |
| Countries that Start with D | 0 | - | 4.96 | 701,346 |
| All 1M Cities by Proximity | 0 | - | 5.00 | 573,151 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,387 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,099 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,724 |
| Countries that Start with J | 0 | - | 4.98 | 595,879 |
| Countries That Border Russia | 0 | - | 4.98 | 458,862 |
| Countries that Start with H | 0 | - | 4.96 | 597,800 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,768 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,179 |
| One Border Countries | 0 | - | 4.98 | 464,285 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,148 |
| Countries with Four Letters | 0 | - | 4.99 | 418,455 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,725 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,589 |
| Countries Bordering France | 0 | - | 4.83 | 398,847 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,763 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,232 |
| Northernmost Countries | 0 | - | 4.99 | 357,648 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,281 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,558 |
| Every Country Shape | 0 | - | 5.00 | 458,774 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,067 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,999 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,728 |
| Australia Map Quiz | 0 | - | 4.94 | 342,447 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,548 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,182 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,449 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,322 |
| Landlocked Countries | 0 | - | 4.99 | 413,453 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,315 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,069 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,821 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,366 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,336 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,495 |
| "Land" Countries | 0 | - | 4.98 | 333,602 |
| Flags of North and South America | 0 | - | 4.99 | 367,022 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,793 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,810 |
| Countries of the World with an Empty Map - Hard Version | 0 | - | 5.00 | 302,669 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,219 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,074 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,236 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,859 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,047 |
| Countries with Z | 0 | - | 4.98 | 287,833 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,878 |
| Countries that Border China | 0 | - | 4.96 | 261,796 |
| Longest International Borders | 0 | - | 4.99 | 263,523 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,198 |
| Europe Capital to Country | 0 | - | 4.99 | 247,664 |
| EU Countries Quiz | 0 | - | 4.99 | 269,859 |
| World Currency Quiz | 0 | - | 4.92 | 298,354 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,619 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,176 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,828 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,646 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,887 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,801 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,675 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,207 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,316 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,749 |
| Official Cities in the UK | 0 | - | 4.89 | 280,473 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,204 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,382 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,364 |
| Megacities on a World Map | 0 | - | 4.98 | 250,900 |
| World Capitals by Map | 0 | - | 5.00 | 283,144 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.94 | 303,402 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,734 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,443 |
| NATO Countries | 0 | - | 4.98 | 275,644 |
| Flags of Oceania | 0 | - | 5.00 | 255,098 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,198 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,278 |
| Shortest Country Name A-Z | 0 | - | 5.00 | 234,797 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,840 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,898 |
| Countries in World War I | 0 | - | 4.88 | 226,578 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,267 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,928 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,470 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,085 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,160 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,100 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,355 |
| Countries with Megacities | 0 | - | 4.99 | 246,723 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,340 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,914 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,371 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,563 |
| Country Chain | 0 | - | 4.96 | 215,700 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,099 |
| European Countries by Clue | 0 | - | 4.92 | 182,356 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 216,278 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,597 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.88 | 221,756 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,624 |
| World's Busiest Airports | 0 | - | 4.94 | 210,378 |
| Independence from Whom | 0 | - | 4.99 | 209,646 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,438 |
| Every European Country Shape | 0 | - | 4.96 | 200,112 |
| Islands by Country #1 | 0 | - | 4.87 | 174,470 |
| Countries in their Native Language | 0 | - | 4.99 | 196,604 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,895 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,907 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,723 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 188,475 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,811 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,699 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,378 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,579 |
| Countries with Six Letters | 0 | - | 4.93 | 210,317 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,956 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,292 |
