| Island Countries | 0 | - | 4.99 | 712,709 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,698 |
| European Countries by Clue | 0 | - | 4.92 | 184,195 |
| Countries by Military Spending | 0 | - | 4.93 | 179,048 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,833 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,909,335 |
| US States Quiz | 0 | - | 5.00 | 17,003,700 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,184 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,052 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,649 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,603 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,212 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,881 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,526 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,354 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,951 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,325 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,195 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,037 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,229 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,528 |
| Countries of Africa | 0 | - | 5.00 | 2,561,466 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,767 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,338 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,072 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,074 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,501 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,671 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,754 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,411 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,560 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,040 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,662 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,576 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,185 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,125 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,952 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,414 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,203 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,509 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,264 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,090 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,201 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,887 |
| Random Country to Capital | 0 | - | 4.98 | 928,839 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,191 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,661 |
| Asia Map Quiz | 0 | - | 4.99 | 925,623 |
| Countries that Start with U | 0 | - | 4.97 | 908,711 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,160 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,081 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,653 |
| Counties of England | 0 | - | 4.97 | 803,306 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,801 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,696 |
| Top World Languages | 0 | - | 4.92 | 830,297 |
| Countries of South America | 0 | - | 5.00 | 933,218 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,197 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,168 |
| Countries that Start with K | 0 | - | 4.97 | 821,071 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,554 |
| US States with an Empty Map | 0 | - | 5.00 | 628,983 |
| Countries that Start with V | 0 | - | 4.98 | 612,183 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,380 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,206 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,820 |
| Countries that Start with D | 0 | - | 4.96 | 716,844 |
| Countries That Border Russia | 0 | - | 4.98 | 464,615 |
| One Border Countries | 0 | - | 4.98 | 472,146 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,623 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,156 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,923 |
| Countries with Four Letters | 0 | - | 4.99 | 426,020 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,736 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,746 |
| Countries Bordering France | 0 | - | 4.83 | 405,028 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,650 |
| Northernmost Countries | 0 | - | 4.99 | 364,207 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,332 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,805 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,961 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,734 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,122 |
| Landlocked Countries | 0 | - | 4.99 | 426,345 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,045 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,227 |
| Australia Map Quiz | 0 | - | 4.95 | 346,255 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,186 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,808 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,929 |
| Countries that Start with H | 0 | - | 4.96 | 609,880 |
| Countries that Start with J | 0 | - | 4.98 | 607,250 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,048 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,043 |
| "Land" Countries | 0 | - | 4.98 | 338,502 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,048 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,294 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,470 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,513 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,133 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,094 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,898 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,447 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,064 |
| Countries with Z | 0 | - | 4.98 | 292,562 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,736 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,315 |
| Flags of North and South America | 0 | - | 4.99 | 377,336 |
| EU Countries Quiz | 0 | - | 4.99 | 278,147 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,351 |
| Countries that Border China | 0 | - | 4.96 | 264,364 |
| French-Speaking Countries | 0 | - | 4.85 | 271,741 |
| Countries with Five Letters | 0 | - | 4.96 | 284,124 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,217 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,558 |
| Every Country Shape | 0 | - | 5.00 | 471,534 |
| Europe Capital to Country | 0 | - | 4.99 | 252,233 |
| Longest International Borders | 0 | - | 4.99 | 265,874 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,202 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,725 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,805 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,696 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,188 |
| Megacities on a World Map | 0 | - | 4.98 | 257,105 |
| World Currency Quiz | 0 | - | 4.92 | 307,010 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,348 |
| NATO Countries | 0 | - | 4.98 | 283,611 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,619 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,065 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,893 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,436 |
| Official Cities in the UK | 0 | - | 4.89 | 286,460 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,570 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,617 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,191 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,224 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,878 |
| Countries with Megacities | 0 | - | 4.99 | 267,360 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,707 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,671 |
| World Capitals by Map | 0 | - | 5.00 | 289,584 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,356 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,036 |
| World's Busiest Airports | 0 | - | 4.96 | 237,520 |
| Country Chain | 0 | - | 4.96 | 218,519 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,008 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,864 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,846 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,741 |
| Independence from Whom | 0 | - | 4.99 | 213,178 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,501 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,921 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,064 |
| Countries with Six Letters | 0 | - | 4.94 | 214,594 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,283 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,744 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,200 |
| Flags of Oceania | 0 | - | 5.00 | 262,940 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,864 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,417 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,233 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,528 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,175 |
| Countries in their Native Language | 0 | - | 4.99 | 199,808 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,447 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,754 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,963 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,515 |
| Monarchies of the World | 0 | - | 4.94 | 170,324 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,362 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,033 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,691 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,033 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,694 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,258 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,051 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,343 |
| Countries That End in Y | 0 | - | 4.91 | 186,105 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,803 |
| Olympic Host Countries | 0 | - | 4.98 | 202,042 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,687 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,276 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,711 |
| Every European Country Shape | 0 | - | 4.96 | 203,084 |
| Countries of the Middle East | 0 | - | 4.96 | 203,034 |
| Countries by Official Language | 0 | - | 4.95 | 196,081 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,857 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,195 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,151 |
| Counties of Ireland | 0 | - | 4.92 | 197,407 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,799 |
| Countries Bordering India | 0 | - | 4.98 | 163,835 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,335 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,167 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,330 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,102 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,737 |
| European Cities by Clue | 0 | - | 4.70 | 89,181 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,424 |
| Islands by Country #2 | 0 | - | 4.80 | 77,906 |
