| Island Countries | 0 | - | 4.99 | 708,163 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,634 |
| European Countries by Clue | 0 | - | 4.92 | 182,530 |
| Countries by Military Spending | 0 | - | 4.93 | 176,649 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,162 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,028,175 |
| US States Quiz | 0 | - | 5.00 | 16,736,574 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,595,014 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,928 |
| World Capitals Quiz | 0 | - | 5.00 | 5,040,749 |
| Europe Map Quiz | 0 | - | 5.00 | 4,737,963 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,477 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,003 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,617 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,706 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,727,812 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,904 |
| All Country Flags of the World | 0 | - | 5.00 | 3,614,747 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,143 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,751 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,127 |
| Countries of Africa | 0 | - | 5.00 | 2,513,686 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,408 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,048 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,558 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,632 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,522 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,616 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,393 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,116 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,050 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,846 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,999 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,422 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,564 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,262 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,839 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,979 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,285 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,498 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,303 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,298 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,379 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,860 |
| Random Country to Capital | 0 | - | 4.98 | 913,199 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,314 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,048 |
| Asia Map Quiz | 0 | - | 4.99 | 908,662 |
| Countries that Start with U | 0 | - | 4.97 | 900,808 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,366 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,391 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,426 |
| Counties of England | 0 | - | 4.97 | 790,634 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,842 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,702 |
| Top World Languages | 0 | - | 4.92 | 814,933 |
| Countries of South America | 0 | - | 5.00 | 917,246 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,944 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,471 |
| Countries that Start with K | 0 | - | 4.97 | 810,591 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,723 |
| US States with an Empty Map | 0 | - | 5.00 | 619,998 |
| Countries that Start with V | 0 | - | 4.98 | 605,909 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,895 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,545 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,118 |
| Countries that Start with D | 0 | - | 4.96 | 703,150 |
| Countries That Border Russia | 0 | - | 4.98 | 459,697 |
| One Border Countries | 0 | - | 4.98 | 465,406 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,270 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,125 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,567 |
| Countries with Four Letters | 0 | - | 4.99 | 419,324 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,421 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,333 |
| Countries Bordering France | 0 | - | 4.83 | 400,439 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,216 |
| Northernmost Countries | 0 | - | 4.99 | 358,507 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,742 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,613 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,509 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,624 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,366 |
| Landlocked Countries | 0 | - | 4.99 | 414,983 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,825 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,817 |
| Australia Map Quiz | 0 | - | 4.94 | 342,838 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,304 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,508 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,563 |
| Countries that Start with H | 0 | - | 4.96 | 599,245 |
| Countries that Start with J | 0 | - | 4.98 | 597,324 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,000 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,342 |
| "Land" Countries | 0 | - | 4.98 | 334,010 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,663 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 285,261 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,820 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,818 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,995 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,861 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,370 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,609 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 265,031 |
| Countries with Z | 0 | - | 4.98 | 288,179 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,556 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,419 |
| Flags of North and South America | 0 | - | 4.99 | 368,672 |
| EU Countries Quiz | 0 | - | 4.99 | 270,741 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,805 |
| Countries that Border China | 0 | - | 4.96 | 262,095 |
| French-Speaking Countries | 0 | - | 4.85 | 269,191 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,973 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,415 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,600 |
| Every Country Shape | 0 | - | 5.00 | 460,276 |
| Europe Capital to Country | 0 | - | 4.99 | 248,371 |
| Longest International Borders | 0 | - | 4.99 | 264,051 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,247 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,582 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,536 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,005 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,062 |
| Megacities on a World Map | 0 | - | 4.98 | 251,612 |
| World Currency Quiz | 0 | - | 4.92 | 299,395 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,714 |
| NATO Countries | 0 | - | 4.98 | 277,010 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,085 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,579 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,580 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,760 |
| Official Cities in the UK | 0 | - | 4.89 | 281,216 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,480 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,398 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,905 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,694 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,709 |
| Countries with Megacities | 0 | - | 4.99 | 247,976 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,122 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,334 |
| World Capitals by Map | 0 | - | 5.00 | 284,079 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,077 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,972 |
| World's Busiest Airports | 0 | - | 4.95 | 215,040 |
| Country Chain | 0 | - | 4.96 | 216,006 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,747 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,573 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,884 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,236 |
| Independence from Whom | 0 | - | 4.99 | 210,057 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,884 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,837 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,814 |
| Countries with Six Letters | 0 | - | 4.93 | 210,632 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,758 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,614 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,789 |
| Flags of Oceania | 0 | - | 5.00 | 256,051 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,853 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,362 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,113 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,531 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,961 |
| Countries in their Native Language | 0 | - | 4.99 | 196,916 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,607 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,000 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,556 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,573 |
| Monarchies of the World | 0 | - | 4.94 | 166,995 |
| 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 | 190,646 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,223 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,634 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,186 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,138 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,533 |
| Countries That End in Y | 0 | - | 4.90 | 185,273 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,569 |
| Olympic Host Countries | 0 | - | 4.98 | 199,139 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,208 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,030 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,315 |
| Every European Country Shape | 0 | - | 4.96 | 200,499 |
| Countries of the Middle East | 0 | - | 4.96 | 199,327 |
| Countries by Official Language | 0 | - | 4.95 | 193,070 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,380 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,589 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,890 |
| Counties of Ireland | 0 | - | 4.92 | 193,521 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,659 |
| Countries Bordering India | 0 | - | 4.98 | 163,077 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,785 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,571 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,831 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,743 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,510 |
| European Cities by Clue | 0 | - | 4.70 | 88,861 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,999 |
| Islands by Country #2 | 0 | - | 4.80 | 77,086 |
