| Island Countries | 0 | - | 4.99 | 708,169 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,710 |
| European Countries by Clue | 0 | - | 4.92 | 182,555 |
| Countries by Military Spending | 0 | - | 4.93 | 176,655 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,236 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,029,204 |
| US States Quiz | 0 | - | 5.00 | 16,737,060 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,069 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,960 |
| World Capitals Quiz | 0 | - | 5.00 | 5,040,846 |
| Europe Map Quiz | 0 | - | 5.00 | 4,738,051 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,520 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,034 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,641 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,750 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,727,946 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,921 |
| All Country Flags of the World | 0 | - | 5.00 | 3,614,874 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,174 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,770 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,150 |
| Countries of Africa | 0 | - | 5.00 | 2,513,733 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,417 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,059 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,574 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,645 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,530 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,632 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,417 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,152 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,100 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,861 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,008 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,436 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,583 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,277 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,846 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,992 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,299 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,509 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,309 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,340 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,389 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,871 |
| Random Country to Capital | 0 | - | 4.98 | 913,208 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,320 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,075 |
| Asia Map Quiz | 0 | - | 4.99 | 908,688 |
| Countries that Start with U | 0 | - | 4.97 | 900,812 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,415 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,420 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,431 |
| Counties of England | 0 | - | 4.97 | 790,673 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,851 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,730 |
| Top World Languages | 0 | - | 4.92 | 814,952 |
| Countries of South America | 0 | - | 5.00 | 917,280 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,963 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,488 |
| Countries that Start with K | 0 | - | 4.97 | 810,600 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,723 |
| US States with an Empty Map | 0 | - | 5.00 | 620,005 |
| Countries that Start with V | 0 | - | 4.98 | 605,914 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,902 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,550 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,137 |
| Countries that Start with D | 0 | - | 4.96 | 703,163 |
| Countries That Border Russia | 0 | - | 4.98 | 459,700 |
| One Border Countries | 0 | - | 4.98 | 465,416 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,273 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,136 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,576 |
| Countries with Four Letters | 0 | - | 4.99 | 419,329 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,431 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,338 |
| Countries Bordering France | 0 | - | 4.83 | 400,448 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,223 |
| Northernmost Countries | 0 | - | 4.99 | 358,516 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,748 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,622 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,515 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,629 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,369 |
| Landlocked Countries | 0 | - | 4.99 | 414,999 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,831 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,828 |
| Australia Map Quiz | 0 | - | 4.94 | 342,840 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,306 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,521 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,578 |
| Countries that Start with H | 0 | - | 4.96 | 599,258 |
| Countries that Start with J | 0 | - | 4.98 | 597,334 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,005 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,346 |
| "Land" Countries | 0 | - | 4.98 | 334,013 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,665 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 285,419 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,823 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,824 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,996 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,880 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,400 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,612 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,193 |
| Countries with Z | 0 | - | 4.98 | 288,184 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,564 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,420 |
| Flags of North and South America | 0 | - | 4.99 | 368,684 |
| EU Countries Quiz | 0 | - | 4.99 | 270,752 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,818 |
| Countries that Border China | 0 | - | 4.96 | 262,097 |
| French-Speaking Countries | 0 | - | 4.85 | 269,198 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,973 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,417 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,604 |
| Every Country Shape | 0 | - | 5.00 | 460,293 |
| Europe Capital to Country | 0 | - | 4.99 | 248,378 |
| Longest International Borders | 0 | - | 4.99 | 264,055 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,261 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,634 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,551 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,012 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,063 |
| Megacities on a World Map | 0 | - | 4.98 | 251,627 |
| World Currency Quiz | 0 | - | 4.92 | 299,400 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,718 |
| NATO Countries | 0 | - | 4.98 | 277,026 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,086 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,582 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,587 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,764 |
| Official Cities in the UK | 0 | - | 4.89 | 281,224 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,484 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,400 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,909 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,695 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,709 |
| Countries with Megacities | 0 | - | 4.99 | 247,992 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,130 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,339 |
| World Capitals by Map | 0 | - | 5.00 | 284,089 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,080 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,975 |
| World's Busiest Airports | 0 | - | 4.95 | 215,074 |
| Country Chain | 0 | - | 4.96 | 216,008 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,750 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,575 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,887 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,236 |
| Independence from Whom | 0 | - | 4.99 | 210,061 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,886 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,837 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,816 |
| Countries with Six Letters | 0 | - | 4.93 | 210,635 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,760 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,616 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,798 |
| Flags of Oceania | 0 | - | 5.00 | 256,059 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,858 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,367 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,115 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,531 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,971 |
| Countries in their Native Language | 0 | - | 4.99 | 196,923 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,611 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,005 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,559 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,578 |
| Monarchies of the World | 0 | - | 4.94 | 167,001 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,724 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,065 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,649 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,227 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,637 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,187 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,139 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,535 |
| Countries That End in Y | 0 | - | 4.90 | 185,276 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,571 |
| Olympic Host Countries | 0 | - | 4.98 | 199,141 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,212 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,031 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,317 |
| Every European Country Shape | 0 | - | 4.96 | 200,500 |
| Countries of the Middle East | 0 | - | 4.96 | 199,329 |
| Countries by Official Language | 0 | - | 4.95 | 193,074 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,381 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,590 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,890 |
| Counties of Ireland | 0 | - | 4.92 | 193,522 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,663 |
| Countries Bordering India | 0 | - | 4.98 | 163,078 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,788 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,572 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,834 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,746 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,512 |
| European Cities by Clue | 0 | - | 4.70 | 88,864 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,999 |
| Islands by Country #2 | 0 | - | 4.80 | 77,086 |
