| Island Countries | 0 | - | 4.99 | 708,264 |
| Countries by Three Words #1 | 0 | - | 4.95 | 263,519 |
| European Countries by Clue | 0 | - | 4.92 | 182,695 |
| Countries by Military Spending | 0 | - | 4.93 | 176,691 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,888 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,044,303 |
| US States Quiz | 0 | - | 5.00 | 16,742,573 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,596,033 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,328 |
| World Capitals Quiz | 0 | - | 5.00 | 5,041,856 |
| Europe Map Quiz | 0 | - | 5.00 | 4,739,099 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,807,428 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,615 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,979 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,261 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,518 |
| Africa Map Quiz | 0 | - | 5.00 | 2,107,496 |
| All Country Flags of the World | 0 | - | 5.00 | 3,616,455 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,550 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,176 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,582 |
| Countries of Africa | 0 | - | 5.00 | 2,514,692 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,572 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,364 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,847 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,971 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,797 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,902 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,679 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,564 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,787 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,139 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,251 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,701 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,787 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,335 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,074 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,199 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,518 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,652 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,550 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,886 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,616 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,968 |
| Random Country to Capital | 0 | - | 4.98 | 913,403 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,486 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,453 |
| Asia Map Quiz | 0 | - | 4.99 | 908,906 |
| Countries that Start with U | 0 | - | 4.97 | 900,953 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,853 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,813 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,558 |
| Counties of England | 0 | - | 4.97 | 790,975 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,961 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,972 |
| Top World Languages | 0 | - | 4.92 | 815,237 |
| Countries of South America | 0 | - | 5.00 | 917,567 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,127 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,674 |
| Countries that Start with K | 0 | - | 4.97 | 810,762 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,780 |
| US States with an Empty Map | 0 | - | 5.00 | 620,184 |
| Countries that Start with V | 0 | - | 4.98 | 606,038 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,023 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,594 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,346 |
| Countries that Start with D | 0 | - | 4.96 | 703,393 |
| Countries That Border Russia | 0 | - | 4.98 | 459,782 |
| One Border Countries | 0 | - | 4.98 | 465,568 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,339 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,296 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,686 |
| Countries with Four Letters | 0 | - | 4.99 | 419,439 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,525 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,408 |
| Countries Bordering France | 0 | - | 4.83 | 400,546 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,314 |
| Northernmost Countries | 0 | - | 4.99 | 358,620 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,807 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,724 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,570 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,713 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,390 |
| Landlocked Countries | 0 | - | 4.99 | 415,208 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,904 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,900 |
| Australia Map Quiz | 0 | - | 4.94 | 342,890 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,370 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,645 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,747 |
| Countries that Start with H | 0 | - | 4.96 | 599,469 |
| Countries that Start with J | 0 | - | 4.98 | 597,519 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,102 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,422 |
| "Land" Countries | 0 | - | 4.98 | 334,067 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,697 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 286,381 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,939 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,881 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,046 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,152 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,664 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,635 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,077 |
| Countries with Z | 0 | - | 4.98 | 288,220 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,649 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,510 |
| Flags of North and South America | 0 | - | 4.99 | 368,846 |
| EU Countries Quiz | 0 | - | 4.99 | 270,860 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,892 |
| Countries that Border China | 0 | - | 4.96 | 262,131 |
| French-Speaking Countries | 0 | - | 4.85 | 269,256 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,015 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,439 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,690 |
| Every Country Shape | 0 | - | 5.00 | 460,439 |
| Europe Capital to Country | 0 | - | 4.99 | 248,424 |
| Longest International Borders | 0 | - | 4.99 | 264,082 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,394 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,078 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,689 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,078 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,093 |
| Megacities on a World Map | 0 | - | 4.98 | 251,713 |
| World Currency Quiz | 0 | - | 4.92 | 299,515 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,755 |
| NATO Countries | 0 | - | 4.98 | 277,169 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,110 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,631 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,636 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,806 |
| Official Cities in the UK | 0 | - | 4.89 | 281,315 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,536 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,417 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,957 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,727 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,745 |
| Countries with Megacities | 0 | - | 4.99 | 248,100 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,197 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,382 |
| World Capitals by Map | 0 | - | 5.00 | 284,177 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,106 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,012 |
| World's Busiest Airports | 0 | - | 4.95 | 215,460 |
| Country Chain | 0 | - | 4.96 | 216,060 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,810 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,651 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,921 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,265 |
| Independence from Whom | 0 | - | 4.99 | 210,109 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,943 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,851 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,870 |
| Countries with Six Letters | 0 | - | 4.93 | 210,672 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,771 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,627 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,857 |
| Flags of Oceania | 0 | - | 5.00 | 256,141 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,911 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,412 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,137 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,550 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,087 |
| Countries in their Native Language | 0 | - | 4.99 | 196,973 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,649 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,061 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,571 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,606 |
| Monarchies of the World | 0 | - | 4.94 | 167,050 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,747 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,105 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,682 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,250 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,691 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,200 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,163 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,667 |
| Countries That End in Y | 0 | - | 4.90 | 185,282 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,627 |
| Olympic Host Countries | 0 | - | 4.98 | 199,189 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,263 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,043 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,341 |
| Every European Country Shape | 0 | - | 4.96 | 200,539 |
| Countries of the Middle East | 0 | - | 4.96 | 199,415 |
| Countries by Official Language | 0 | - | 4.95 | 193,138 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,396 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,616 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,899 |
| Counties of Ireland | 0 | - | 4.92 | 193,616 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,681 |
| Countries Bordering India | 0 | - | 4.98 | 163,088 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,811 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,576 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,861 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,771 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,531 |
| European Cities by Clue | 0 | - | 4.70 | 88,876 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,005 |
| Islands by Country #2 | 0 | - | 4.80 | 77,099 |
