| Island Countries | 0 | - | 4.99 | 707,617 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,210 |
| European Countries by Clue | 0 | - | 4.92 | 182,368 |
| Countries by Military Spending | 0 | - | 4.93 | 176,402 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,499 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,918,489 |
| US States Quiz | 0 | - | 5.00 | 16,701,171 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,587,988 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,882 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,353 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,398 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,089 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,282 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,338 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,964 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,502 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,333 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,045 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,991 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,847 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,770 |
| Countries of Africa | 0 | - | 5.00 | 2,507,915 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,483 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,659 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,232 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,287 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,927 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,495 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,047 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,066 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,274 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,755 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,317 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,487 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,788 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,794 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,249 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,528 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,425 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,396 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,712 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,677 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,863 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,205 |
| Random Country to Capital | 0 | - | 4.98 | 911,613 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,200 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,652 |
| Asia Map Quiz | 0 | - | 4.99 | 907,038 |
| Countries that Start with U | 0 | - | 4.97 | 899,913 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,390 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,662 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,663 |
| Counties of England | 0 | - | 4.97 | 789,201 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,966 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,316 |
| Top World Languages | 0 | - | 4.92 | 813,137 |
| Countries of South America | 0 | - | 5.00 | 914,646 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,253 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,914 |
| Countries that Start with K | 0 | - | 4.97 | 809,390 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,159 |
| US States with an Empty Map | 0 | - | 5.00 | 618,843 |
| Countries that Start with V | 0 | - | 4.98 | 605,087 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,880 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,180 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,581 |
| Countries that Start with D | 0 | - | 4.96 | 701,521 |
| Countries That Border Russia | 0 | - | 4.98 | 458,922 |
| One Border Countries | 0 | - | 4.98 | 464,365 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,845 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,264 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,839 |
| Countries with Four Letters | 0 | - | 4.99 | 418,529 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,770 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,769 |
| Countries Bordering France | 0 | - | 4.83 | 399,112 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,629 |
| Northernmost Countries | 0 | - | 4.99 | 357,714 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,308 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,111 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,057 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,275 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,090 |
| Landlocked Countries | 0 | - | 4.99 | 413,595 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,204 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,363 |
| Australia Map Quiz | 0 | - | 4.94 | 342,486 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,789 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,619 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,517 |
| Countries that Start with H | 0 | - | 4.96 | 597,949 |
| Countries that Start with J | 0 | - | 4.98 | 596,013 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,403 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,869 |
| "Land" Countries | 0 | - | 4.98 | 333,650 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,392 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,690 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,921 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,457 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,540 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,406 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,828 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,295 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,110 |
| Countries with Z | 0 | - | 4.98 | 287,873 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,127 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,934 |
| Flags of North and South America | 0 | - | 4.99 | 367,242 |
| EU Countries Quiz | 0 | - | 4.99 | 269,926 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,276 |
| Countries that Border China | 0 | - | 4.96 | 261,819 |
| French-Speaking Countries | 0 | - | 4.85 | 268,799 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,684 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,242 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,927 |
| Every Country Shape | 0 | - | 5.00 | 458,944 |
| Europe Capital to Country | 0 | - | 4.99 | 247,883 |
| Longest International Borders | 0 | - | 4.99 | 263,543 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,309 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,854 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,923 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,660 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,821 |
| Megacities on a World Map | 0 | - | 4.98 | 250,966 |
| World Currency Quiz | 0 | - | 4.92 | 298,477 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,346 |
| NATO Countries | 0 | - | 4.98 | 275,740 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,897 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,148 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,269 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,463 |
| Official Cities in the UK | 0 | - | 4.89 | 280,544 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,132 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,210 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,308 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,411 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,472 |
| Countries with Megacities | 0 | - | 4.99 | 246,886 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,771 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,959 |
| World Capitals by Map | 0 | - | 5.00 | 283,209 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,937 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,376 |
| World's Busiest Airports | 0 | - | 4.94 | 210,429 |
| Country Chain | 0 | - | 4.96 | 215,725 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,393 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,807 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,629 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,939 |
| Independence from Whom | 0 | - | 4.99 | 209,686 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,962 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,643 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,592 |
| Countries with Six Letters | 0 | - | 4.93 | 210,361 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,596 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,477 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,409 |
| Flags of Oceania | 0 | - | 5.00 | 255,204 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,473 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,985 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,975 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,360 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,175 |
| Countries in their Native Language | 0 | - | 4.99 | 196,634 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,331 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,329 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,395 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,368 |
| Monarchies of the World | 0 | - | 4.94 | 166,606 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,550 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,750 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,402 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,039 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,186 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,082 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,918 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,872 |
| Countries That End in Y | 0 | - | 4.90 | 185,203 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,262 |
| Olympic Host Countries | 0 | - | 4.98 | 198,897 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,749 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,923 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,116 |
| Every European Country Shape | 0 | - | 4.96 | 200,174 |
| Countries of the Middle East | 0 | - | 4.96 | 198,929 |
| Countries by Official Language | 0 | - | 4.95 | 192,765 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,202 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,086 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,734 |
| Counties of Ireland | 0 | - | 4.92 | 193,080 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,443 |
| Countries Bordering India | 0 | - | 4.98 | 162,603 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,655 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,502 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,655 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,631 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| European Cities by Clue | 0 | - | 4.70 | 88,803 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,950 |
| Islands by Country #2 | 0 | - | 4.80 | 76,991 |
