| Island Countries | 0 | - | 4.99 | 709,088 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,755 |
| European Countries by Clue | 0 | - | 4.92 | 183,324 |
| Countries by Military Spending | 0 | - | 4.93 | 177,085 |
| Countries by Three Words #2 | 0 | - | 4.97 | 201,267 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,211,090 |
| US States Quiz | 0 | - | 5.00 | 16,795,377 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,607,082 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,705 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,126 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,730 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,816,120 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,372,015 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,139 |
| Random Capital to Country | 0 | - | 4.99 | 2,585,356 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,180 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,807 |
| All Country Flags of the World | 0 | - | 5.00 | 3,635,410 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,095,374 |
| Countries that Start with B | 0 | - | 4.95 | 2,287,514 |
| Countries that Start with A | 0 | - | 4.98 | 2,155,388 |
| Countries of Africa | 0 | - | 5.00 | 2,523,886 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,653 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,684,029 |
| South America Map Quiz | 0 | - | 5.00 | 1,545,497 |
| Countries that Start with C | 0 | - | 4.96 | 1,816,458 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,379,689 |
| Countries that Start with S | 0 | - | 4.98 | 1,749,954 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,886 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,298 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,858 |
| Countries that Start with G | 0 | - | 4.97 | 1,498,120 |
| Countries that Start with M | 0 | - | 4.97 | 1,377,704 |
| Countries that Start with E | 0 | - | 4.95 | 1,372,594 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,324,239 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 901,070 |
| Countries that Start with I | 0 | - | 4.92 | 1,284,338 |
| Countries that Start with P | 0 | - | 4.94 | 1,212,614 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,107 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,241 |
| Countries that Start with N | 0 | - | 4.93 | 1,113,832 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,330 |
| Countries that Start with L | 0 | - | 4.98 | 1,086,801 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,778 |
| Random Country to Capital | 0 | - | 4.98 | 915,881 |
| Countries that Start with T | 0 | - | 4.90 | 1,007,174 |
| Biggest Cities in the United States | 0 | - | 4.93 | 973,037 |
| Asia Map Quiz | 0 | - | 4.99 | 911,852 |
| Countries that Start with U | 0 | - | 4.97 | 902,332 |
| Countries of Oceania | 0 | - | 5.00 | 1,048,088 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,018,263 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,750 |
| Counties of England | 0 | - | 4.97 | 793,216 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,246 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,113 |
| Top World Languages | 0 | - | 4.92 | 818,198 |
| Countries of South America | 0 | - | 5.00 | 920,518 |
| Africa Capitals Quiz | 0 | - | 4.99 | 734,228 |
| Asia Capitals Quiz | 0 | - | 4.98 | 689,711 |
| Countries that Start with K | 0 | - | 4.97 | 812,573 |
| UK Cities Map Quiz | 0 | - | 4.96 | 463,566 |
| US States with an Empty Map | 0 | - | 5.00 | 621,863 |
| Countries that Start with V | 0 | - | 4.98 | 607,483 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,501 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,037 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,748 |
| Countries that Start with D | 0 | - | 4.96 | 705,738 |
| Countries That Border Russia | 0 | - | 4.98 | 460,563 |
| One Border Countries | 0 | - | 4.98 | 466,784 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,895 |
| South America Capitals Quiz | 0 | - | 5.00 | 479,565 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,211 |
| Countries with Four Letters | 0 | - | 4.99 | 420,733 |
| Countries with the Most Borders | 0 | - | 4.97 | 387,313 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 448,328 |
| Countries Bordering France | 0 | - | 4.83 | 401,361 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,095 |
| Northernmost Countries | 0 | - | 4.99 | 359,710 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,443 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,090 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,178 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 366,263 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,763 |
| Landlocked Countries | 0 | - | 4.99 | 417,254 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,801 |
| World Map without 12 Countries | 0 | - | 4.97 | 343,523 |
| Australia Map Quiz | 0 | - | 4.94 | 343,440 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 365,028 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 415,692 |
| Majority Muslim Countries | 0 | - | 4.98 | 372,270 |
| Countries that Start with H | 0 | - | 4.96 | 601,445 |
| Countries that Start with J | 0 | - | 4.98 | 599,409 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,005 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,143 |
| "Land" Countries | 0 | - | 4.98 | 335,171 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,024 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 288,941 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,258 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,285 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,863 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,543 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,528 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,964 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 269,113 |
| Countries with Z | 0 | - | 4.98 | 289,235 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,052 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,046 |
| Flags of North and South America | 0 | - | 4.99 | 370,746 |
| EU Countries Quiz | 0 | - | 4.99 | 272,034 |
| Biggest Cities in Germany | 0 | - | 4.95 | 292,520 |
| Countries that Border China | 0 | - | 4.96 | 262,611 |
| French-Speaking Countries | 0 | - | 4.85 | 269,909 |
| Countries with Five Letters | 0 | - | 4.96 | 272,571 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,761 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 286,697 |
| Every Country Shape | 0 | - | 5.00 | 462,385 |
| Europe Capital to Country | 0 | - | 4.99 | 249,103 |
| Longest International Borders | 0 | - | 4.99 | 264,407 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 270,822 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,647 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,536 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,753 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,437 |
| Megacities on a World Map | 0 | - | 4.98 | 252,562 |
| World Currency Quiz | 0 | - | 4.92 | 300,956 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,183 |
| NATO Countries | 0 | - | 4.98 | 278,471 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,336 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,299 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,977 |
| Places in their Native Language #1 | 0 | - | 4.84 | 240,844 |
| Official Cities in the UK | 0 | - | 4.89 | 282,411 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 214,105 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,633 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,341 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,429 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,134 |
| Countries with Megacities | 0 | - | 4.99 | 249,413 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,704 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,933 |
| World Capitals by Map | 0 | - | 5.00 | 285,025 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,336 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,341 |
| World's Busiest Airports | 0 | - | 4.96 | 230,606 |
| Country Chain | 0 | - | 4.96 | 216,531 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 278,446 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 268,487 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,354 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,588 |
| Independence from Whom | 0 | - | 4.99 | 210,971 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,435 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,131 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,108 |
| Countries with Six Letters | 0 | - | 4.93 | 211,818 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,407 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,814 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,646 |
| Flags of Oceania | 0 | - | 5.00 | 257,334 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 223,378 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,823 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,331 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,827 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,236 |
| Countries in their Native Language | 0 | - | 4.99 | 197,836 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,402 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,505 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,740 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,972 |
| Monarchies of the World | 0 | - | 4.94 | 167,577 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,343 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,464 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,126 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,508 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,241 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,418 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,435 |
| North America Capitals Quiz | 0 | - | 4.99 | 218,471 |
| Countries That End in Y | 0 | - | 4.90 | 185,516 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,237 |
| Olympic Host Countries | 0 | - | 4.98 | 199,781 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,883 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,219 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,585 |
| Every European Country Shape | 0 | - | 4.96 | 200,995 |
| Countries of the Middle East | 0 | - | 4.96 | 200,037 |
| Countries by Official Language | 0 | - | 4.95 | 194,236 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,613 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,895 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,072 |
| Counties of Ireland | 0 | - | 4.92 | 194,196 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,993 |
| Countries Bordering India | 0 | - | 4.98 | 163,233 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,988 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,685 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,515 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,935 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,660 |
| European Cities by Clue | 0 | - | 4.70 | 88,967 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,084 |
| Islands by Country #2 | 0 | - | 4.80 | 77,238 |
