| Island Countries | 0 | - | 4.99 | 707,282 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,043 |
| European Countries by Clue | 0 | - | 4.92 | 182,300 |
| Countries by Military Spending | 0 | - | 4.93 | 176,271 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,182 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,860,064 |
| US States Quiz | 0 | - | 5.00 | 16,681,505 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,076 |
| United States Map Quiz | 0 | - | 4.98 | 4,139,872 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,286 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,824 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,797,864 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,336 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,806 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,446 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,625 |
| Africa Map Quiz | 0 | - | 5.00 | 2,102,926 |
| All Country Flags of the World | 0 | - | 5.00 | 3,595,126 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,489 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,224 |
| Countries that Start with A | 0 | - | 4.98 | 2,144,907 |
| Countries of Africa | 0 | - | 5.00 | 2,504,834 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,235 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,224 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,378 |
| Countries that Start with C | 0 | - | 4.96 | 1,808,968 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,374,936 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,360 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,696 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,235 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,519 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,627 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,398 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,436 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,690 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,528 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,331 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,751 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,496 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,710 |
| Countries that Start with N | 0 | - | 4.93 | 1,108,910 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,393 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,043 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,559 |
| Random Country to Capital | 0 | - | 4.98 | 910,628 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,528 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,243 |
| Asia Map Quiz | 0 | - | 4.99 | 905,979 |
| Countries that Start with U | 0 | - | 4.97 | 899,299 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,849 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,557 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,175 |
| Counties of England | 0 | - | 4.97 | 788,429 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,383 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,532 |
| Top World Languages | 0 | - | 4.92 | 812,097 |
| Countries of South America | 0 | - | 5.00 | 913,565 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,477 |
| Asia Capitals Quiz | 0 | - | 4.98 | 684,945 |
| Countries that Start with K | 0 | - | 4.96 | 808,702 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,934 |
| US States with an Empty Map | 0 | - | 5.00 | 618,214 |
| Countries that Start with V | 0 | - | 4.98 | 604,593 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,275 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,032 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,610 |
| Countries that Start with D | 0 | - | 4.96 | 700,623 |
| Countries That Border Russia | 0 | - | 4.98 | 458,574 |
| One Border Countries | 0 | - | 4.98 | 463,656 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,357 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,864 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,047 |
| Countries with Four Letters | 0 | - | 4.99 | 418,095 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,198 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,490 |
| Countries Bordering France | 0 | - | 4.85 | 396,924 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,183 |
| Northernmost Countries | 0 | - | 4.99 | 357,316 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,083 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,868 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,729 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,075 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,962 |
| Landlocked Countries | 0 | - | 4.99 | 412,962 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,896 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,075 |
| Australia Map Quiz | 0 | - | 4.94 | 342,257 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,514 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,273 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,063 |
| Countries that Start with H | 0 | - | 4.96 | 597,172 |
| Countries that Start with J | 0 | - | 4.98 | 595,244 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,999 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,512 |
| "Land" Countries | 0 | - | 4.98 | 333,448 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,265 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,589 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,359 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 293,942 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,162 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,330 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,585 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,097 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,768 |
| Countries with Z | 0 | - | 4.98 | 287,536 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,912 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,722 |
| Flags of North and South America | 0 | - | 4.99 | 365,731 |
| EU Countries Quiz | 0 | - | 4.99 | 269,501 |
| Biggest Cities in Germany | 0 | - | 4.95 | 290,999 |
| Countries that Border China | 0 | - | 4.96 | 261,701 |
| French-Speaking Countries | 0 | - | 4.85 | 268,634 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,510 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,083 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,549 |
| Every Country Shape | 0 | - | 5.00 | 458,072 |
| Europe Capital to Country | 0 | - | 4.99 | 247,315 |
| Longest International Borders | 0 | - | 4.99 | 263,390 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,748 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,709 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,131 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,461 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,682 |
| Megacities on a World Map | 0 | - | 4.98 | 250,434 |
| World Currency Quiz | 0 | - | 4.92 | 297,879 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,181 |
| NATO Countries | 0 | - | 4.98 | 275,187 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,816 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,859 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,897 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,284 |
| Official Cities in the UK | 0 | - | 4.89 | 280,191 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,899 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,113 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,147 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,251 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,319 |
| Countries with Megacities | 0 | - | 4.99 | 246,258 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,623 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,732 |
| World Capitals by Map | 0 | - | 5.00 | 282,862 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,834 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,261 |
| World's Busiest Airports | 0 | - | 4.94 | 210,091 |
| Country Chain | 0 | - | 4.96 | 215,585 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,236 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,427 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,490 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,786 |
| Independence from Whom | 0 | - | 4.99 | 209,504 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,332 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,528 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,404 |
| Countries with Six Letters | 0 | - | 4.93 | 210,210 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,480 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,415 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,182 |
| Flags of Oceania | 0 | - | 5.00 | 254,677 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,299 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,152 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,893 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,253 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,736 |
| Countries in their Native Language | 0 | - | 4.99 | 196,495 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,183 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,085 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,310 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,198 |
| Monarchies of the World | 0 | - | 4.94 | 166,402 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,438 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,587 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,268 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,793 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,002 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,033 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,800 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,550 |
| Countries That End in Y | 0 | - | 4.90 | 185,159 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,106 |
| Olympic Host Countries | 0 | - | 4.98 | 198,772 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,535 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,849 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,010 |
| Every European Country Shape | 0 | - | 4.95 | 199,855 |
| Countries of the Middle East | 0 | - | 4.96 | 198,722 |
| Countries by Official Language | 0 | - | 4.95 | 192,608 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,131 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,965 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,647 |
| Counties of Ireland | 0 | - | 4.92 | 192,818 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,320 |
| Countries Bordering India | 0 | - | 4.98 | 162,543 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,594 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,455 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,559 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,555 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,378 |
| European Cities by Clue | 0 | - | 4.70 | 88,770 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,923 |
| Islands by Country #2 | 0 | - | 4.80 | 76,941 |
