| Island Countries | 0 | - | 4.99 | 708,149 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,559 |
| European Countries by Clue | 0 | - | 4.92 | 182,518 |
| Countries by Military Spending | 0 | - | 4.93 | 176,639 |
| Countries by Three Words #2 | 0 | - | 4.97 | 199,107 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,026,687 |
| US States Quiz | 0 | - | 5.00 | 16,736,041 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,594,907 |
| United States Map Quiz | 0 | - | 4.98 | 4,144,878 |
| World Capitals Quiz | 0 | - | 5.00 | 5,040,595 |
| Europe Map Quiz | 0 | - | 5.00 | 4,737,842 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,806,377 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,950 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,580 |
| Random Capital to Country | 0 | - | 4.99 | 2,580,673 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,727,661 |
| Africa Map Quiz | 0 | - | 5.00 | 2,106,878 |
| All Country Flags of the World | 0 | - | 5.00 | 3,614,562 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,091,122 |
| Countries that Start with B | 0 | - | 4.95 | 2,282,710 |
| Countries that Start with A | 0 | - | 4.98 | 2,150,088 |
| Countries of Africa | 0 | - | 5.00 | 2,513,628 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,389 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,021 |
| South America Map Quiz | 0 | - | 5.00 | 1,542,539 |
| Countries that Start with C | 0 | - | 4.96 | 1,812,606 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,377,514 |
| Countries that Start with S | 0 | - | 4.98 | 1,746,580 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,366 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,574,080 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,984 |
| Countries that Start with G | 0 | - | 4.97 | 1,494,824 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,981 |
| Countries that Start with E | 0 | - | 4.95 | 1,369,399 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,321,515 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,259 |
| Countries that Start with I | 0 | - | 4.92 | 1,281,824 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,956 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,256 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,480 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,284 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,230,232 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,361 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,850 |
| Random Country to Capital | 0 | - | 4.98 | 913,187 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,299 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,014 |
| Asia Map Quiz | 0 | - | 4.99 | 908,636 |
| Countries that Start with U | 0 | - | 4.97 | 900,797 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,329 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,014,342 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 730,420 |
| Counties of England | 0 | - | 4.97 | 790,610 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,830 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,694 |
| Top World Languages | 0 | - | 4.92 | 814,903 |
| Countries of South America | 0 | - | 5.00 | 917,228 |
| Africa Capitals Quiz | 0 | - | 4.99 | 731,919 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,428 |
| Countries that Start with K | 0 | - | 4.97 | 810,578 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,716 |
| US States with an Empty Map | 0 | - | 5.00 | 619,971 |
| Countries that Start with V | 0 | - | 4.98 | 605,896 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,884 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,542 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,087 |
| Countries that Start with D | 0 | - | 4.96 | 703,130 |
| Countries That Border Russia | 0 | - | 4.98 | 459,691 |
| One Border Countries | 0 | - | 4.98 | 465,392 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,260 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,110 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,556 |
| Countries with Four Letters | 0 | - | 4.99 | 419,317 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,416 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,326 |
| Countries Bordering France | 0 | - | 4.83 | 400,421 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,210 |
| Northernmost Countries | 0 | - | 4.99 | 358,498 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,731 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,599 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,504 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,613 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,364 |
| Landlocked Countries | 0 | - | 4.99 | 414,966 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,811 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,810 |
| Australia Map Quiz | 0 | - | 4.94 | 342,834 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,303 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,500 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,536 |
| Countries that Start with H | 0 | - | 4.96 | 599,225 |
| Countries that Start with J | 0 | - | 4.98 | 597,300 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,991 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,335 |
| "Land" Countries | 0 | - | 4.98 | 334,005 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,660 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 284,984 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,806 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,812 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,988 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,841 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,351 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,606 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 264,746 |
| Countries with Z | 0 | - | 4.98 | 288,175 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,548 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,415 |
| Flags of North and South America | 0 | - | 4.99 | 368,656 |
| EU Countries Quiz | 0 | - | 4.99 | 270,730 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,803 |
| Countries that Border China | 0 | - | 4.96 | 262,093 |
| French-Speaking Countries | 0 | - | 4.85 | 269,180 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,969 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,414 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,585 |
| Every Country Shape | 0 | - | 5.00 | 460,250 |
| Europe Capital to Country | 0 | - | 4.99 | 248,367 |
| Longest International Borders | 0 | - | 4.99 | 264,044 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,230 |
| Biggest Cities by Language | 0 | - | 4.96 | 243,517 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,521 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,996 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,060 |
| Megacities on a World Map | 0 | - | 4.98 | 251,604 |
| World Currency Quiz | 0 | - | 4.92 | 299,382 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,708 |
| NATO Countries | 0 | - | 4.98 | 276,995 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,084 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,567 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,577 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,756 |
| Official Cities in the UK | 0 | - | 4.89 | 281,211 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,478 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,397 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,903 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,685 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,706 |
| Countries with Megacities | 0 | - | 4.99 | 247,963 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,115 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,326 |
| World Capitals by Map | 0 | - | 5.00 | 284,072 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,076 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,969 |
| World's Busiest Airports | 0 | - | 4.95 | 214,968 |
| Country Chain | 0 | - | 4.96 | 215,999 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,743 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,564 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,874 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,232 |
| Independence from Whom | 0 | - | 4.99 | 210,049 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,880 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,835 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,807 |
| Countries with Six Letters | 0 | - | 4.93 | 210,630 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,756 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,610 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,780 |
| Flags of Oceania | 0 | - | 5.00 | 256,036 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,847 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,354 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,108 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,526 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,952 |
| Countries in their Native Language | 0 | - | 4.99 | 196,909 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,604 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,993 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,552 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,571 |
| Monarchies of the World | 0 | - | 4.94 | 166,992 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,719 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,062 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,645 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,223 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,628 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,185 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,132 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,525 |
| Countries That End in Y | 0 | - | 4.90 | 185,273 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,559 |
| Olympic Host Countries | 0 | - | 4.98 | 199,132 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,203 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,030 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,312 |
| Every European Country Shape | 0 | - | 4.96 | 200,492 |
| Countries of the Middle East | 0 | - | 4.96 | 199,325 |
| Countries by Official Language | 0 | - | 4.95 | 193,062 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,373 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,586 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,888 |
| Counties of Ireland | 0 | - | 4.92 | 193,519 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,658 |
| Countries Bordering India | 0 | - | 4.98 | 163,074 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,783 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,570 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,827 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,740 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,509 |
| European Cities by Clue | 0 | - | 4.70 | 88,859 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,999 |
| Islands by Country #2 | 0 | - | 4.80 | 77,080 |
