| Island Countries | 0 | - | 4.99 | 712,599 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,633 |
| European Countries by Clue | 0 | - | 4.92 | 184,169 |
| Countries by Military Spending | 0 | - | 4.93 | 179,015 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,709 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,885,466 |
| US States Quiz | 0 | - | 5.00 | 16,997,768 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,653,489 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,429 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,555 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,486 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,131 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,904 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,106 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,671 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,914 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,795 |
| All Country Flags of the World | 0 | - | 5.00 | 3,714,513 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,124,589 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,565 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,831 |
| Countries of Africa | 0 | - | 5.00 | 2,560,076 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,562 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,873 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,773 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,525 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,333 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,220 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,246 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,706 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,560 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,585 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,321 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,151 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,717 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,041 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,624 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,066 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,835 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,255 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,920 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,246 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,873 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,779 |
| Random Country to Capital | 0 | - | 4.98 | 928,231 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,963 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,162 |
| Asia Map Quiz | 0 | - | 4.99 | 925,258 |
| Countries that Start with U | 0 | - | 4.97 | 908,511 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,488 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,610 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,488 |
| Counties of England | 0 | - | 4.97 | 802,993 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,646 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,435 |
| Top World Languages | 0 | - | 4.92 | 829,865 |
| Countries of South America | 0 | - | 5.00 | 932,796 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,939 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,920 |
| Countries that Start with K | 0 | - | 4.97 | 820,807 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,471 |
| US States with an Empty Map | 0 | - | 5.00 | 628,752 |
| Countries that Start with V | 0 | - | 4.98 | 612,027 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,185 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,134 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,424 |
| Countries that Start with D | 0 | - | 4.96 | 716,470 |
| Countries That Border Russia | 0 | - | 4.98 | 464,524 |
| One Border Countries | 0 | - | 4.98 | 471,991 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,533 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,006 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,736 |
| Countries with Four Letters | 0 | - | 4.99 | 425,878 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,617 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,573 |
| Countries Bordering France | 0 | - | 4.83 | 404,934 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,527 |
| Northernmost Countries | 0 | - | 4.99 | 364,056 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,254 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,713 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,875 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,685 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,034 |
| Landlocked Countries | 0 | - | 4.99 | 425,957 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,912 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,131 |
| Australia Map Quiz | 0 | - | 4.95 | 346,176 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,059 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,659 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,755 |
| Countries that Start with H | 0 | - | 4.96 | 609,629 |
| Countries that Start with J | 0 | - | 4.98 | 607,017 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,901 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,953 |
| "Land" Countries | 0 | - | 4.98 | 338,409 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,017 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,243 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,277 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,437 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,040 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,659 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,762 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,349 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,891 |
| Countries with Z | 0 | - | 4.98 | 292,478 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,655 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,056 |
| Flags of North and South America | 0 | - | 4.99 | 377,069 |
| EU Countries Quiz | 0 | - | 4.99 | 277,970 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,249 |
| Countries that Border China | 0 | - | 4.96 | 264,294 |
| French-Speaking Countries | 0 | - | 4.85 | 271,693 |
| Countries with Five Letters | 0 | - | 4.96 | 283,796 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,194 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,423 |
| Every Country Shape | 0 | - | 5.00 | 471,259 |
| Europe Capital to Country | 0 | - | 4.99 | 252,114 |
| Longest International Borders | 0 | - | 4.99 | 265,819 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,025 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,678 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,475 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,643 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,133 |
| Megacities on a World Map | 0 | - | 4.98 | 256,967 |
| World Currency Quiz | 0 | - | 4.92 | 306,804 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,276 |
| NATO Countries | 0 | - | 4.98 | 283,481 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,587 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,964 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,824 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,370 |
| Official Cities in the UK | 0 | - | 4.89 | 286,289 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,501 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,577 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,135 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,147 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,825 |
| Countries with Megacities | 0 | - | 4.99 | 267,163 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,640 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,469 |
| World Capitals by Map | 0 | - | 5.00 | 289,405 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,322 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,991 |
| World's Busiest Airports | 0 | - | 4.96 | 237,344 |
| Country Chain | 0 | - | 4.96 | 218,471 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,917 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,769 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,380 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,702 |
| Independence from Whom | 0 | - | 4.99 | 213,087 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,460 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,872 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,034 |
| Countries with Six Letters | 0 | - | 4.94 | 214,503 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,251 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,715 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,108 |
| Flags of Oceania | 0 | - | 5.00 | 262,742 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,797 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,358 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,207 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,496 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,070 |
| Countries in their Native Language | 0 | - | 4.99 | 199,751 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,391 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,691 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,930 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,478 |
| Monarchies of the World | 0 | - | 4.94 | 170,230 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,296 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,984 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,651 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,995 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,607 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,235 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,016 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,253 |
| Countries That End in Y | 0 | - | 4.91 | 186,095 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,720 |
| Olympic Host Countries | 0 | - | 4.98 | 201,975 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,600 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,232 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,674 |
| Every European Country Shape | 0 | - | 4.96 | 203,006 |
| Countries of the Middle East | 0 | - | 4.96 | 202,967 |
| Countries by Official Language | 0 | - | 4.95 | 196,013 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,824 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,151 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,119 |
| Counties of Ireland | 0 | - | 4.92 | 197,329 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,752 |
| Countries Bordering India | 0 | - | 4.98 | 163,821 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,270 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,150 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,212 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,989 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,684 |
| European Cities by Clue | 0 | - | 4.70 | 89,177 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,418 |
| Islands by Country #2 | 0 | - | 4.80 | 77,876 |
