| Island Countries | 0 | - | 4.99 | 707,630 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,215 |
| European Countries by Clue | 0 | - | 4.92 | 182,370 |
| Countries by Military Spending | 0 | - | 4.93 | 176,403 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,503 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,920,757 |
| US States Quiz | 0 | - | 5.00 | 16,701,793 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,588,114 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,967 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,536 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,522 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,801,164 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,345 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,385 |
| Random Capital to Country | 0 | - | 4.99 | 2,578,007 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,921 |
| Africa Map Quiz | 0 | - | 5.00 | 2,104,403 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,352 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,088,059 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,892 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,832 |
| Countries of Africa | 0 | - | 5.00 | 2,508,033 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,440,529 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,724 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,273 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,337 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,946 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,540 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,088 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,130 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,352 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,785 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,356 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,519 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,831 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,814 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,280 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,558 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,454 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,421 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,740 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,785 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,888 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,227 |
| Random Country to Capital | 0 | - | 4.98 | 911,636 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,225 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,701 |
| Asia Map Quiz | 0 | - | 4.99 | 907,069 |
| Countries that Start with U | 0 | - | 4.97 | 899,932 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,458 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,715 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,684 |
| Counties of England | 0 | - | 4.97 | 789,218 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,981 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,353 |
| Top World Languages | 0 | - | 4.92 | 813,168 |
| Countries of South America | 0 | - | 5.00 | 914,758 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,304 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,933 |
| Countries that Start with K | 0 | - | 4.97 | 809,410 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,170 |
| US States with an Empty Map | 0 | - | 5.00 | 618,868 |
| Countries that Start with V | 0 | - | 4.98 | 605,104 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,903 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,187 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,613 |
| Countries that Start with D | 0 | - | 4.96 | 701,549 |
| Countries That Border Russia | 0 | - | 4.98 | 458,933 |
| One Border Countries | 0 | - | 4.98 | 464,377 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,857 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,277 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,851 |
| Countries with Four Letters | 0 | - | 4.99 | 418,544 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,804 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,781 |
| Countries Bordering France | 0 | - | 4.83 | 399,146 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,642 |
| Northernmost Countries | 0 | - | 4.99 | 357,728 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,312 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,118 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,065 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,279 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,092 |
| Landlocked Countries | 0 | - | 4.99 | 413,638 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,210 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,372 |
| Australia Map Quiz | 0 | - | 4.94 | 342,499 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,799 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,640 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,537 |
| Countries that Start with H | 0 | - | 4.96 | 597,965 |
| Countries that Start with J | 0 | - | 4.98 | 596,030 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,417 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,877 |
| "Land" Countries | 0 | - | 4.98 | 333,657 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,395 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,692 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,945 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,476 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,545 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,429 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,834 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,316 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,119 |
| Countries with Z | 0 | - | 4.98 | 287,877 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,130 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,936 |
| Flags of North and South America | 0 | - | 4.99 | 367,276 |
| EU Countries Quiz | 0 | - | 4.99 | 269,943 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,282 |
| Countries that Border China | 0 | - | 4.96 | 261,824 |
| French-Speaking Countries | 0 | - | 4.85 | 268,805 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,689 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,248 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,937 |
| Every Country Shape | 0 | - | 5.00 | 458,972 |
| Europe Capital to Country | 0 | - | 4.99 | 247,911 |
| Longest International Borders | 0 | - | 4.99 | 263,544 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,326 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,858 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,952 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,667 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,826 |
| Megacities on a World Map | 0 | - | 4.98 | 250,976 |
| World Currency Quiz | 0 | - | 4.92 | 298,493 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,349 |
| NATO Countries | 0 | - | 4.98 | 275,752 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,904 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,156 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,283 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,471 |
| Official Cities in the UK | 0 | - | 4.89 | 280,548 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,139 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,212 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,317 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,418 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,478 |
| Countries with Megacities | 0 | - | 4.99 | 246,911 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,777 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,970 |
| World Capitals by Map | 0 | - | 5.00 | 283,215 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,938 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,381 |
| World's Busiest Airports | 0 | - | 4.94 | 210,442 |
| Country Chain | 0 | - | 4.96 | 215,730 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,405 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,817 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,632 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,944 |
| Independence from Whom | 0 | - | 4.99 | 209,691 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,980 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,645 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,597 |
| Countries with Six Letters | 0 | - | 4.93 | 210,365 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,597 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,477 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,415 |
| Flags of Oceania | 0 | - | 5.00 | 255,223 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,482 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,991 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,980 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,362 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,195 |
| Countries in their Native Language | 0 | - | 4.99 | 196,637 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,336 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,340 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,397 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,370 |
| Monarchies of the World | 0 | - | 4.94 | 166,612 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,553 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,756 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,407 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,044 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,192 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,085 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,921 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,887 |
| Countries That End in Y | 0 | - | 4.90 | 185,204 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,265 |
| Olympic Host Countries | 0 | - | 4.98 | 198,902 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,764 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,924 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,120 |
| Every European Country Shape | 0 | - | 4.96 | 200,187 |
| Countries of the Middle East | 0 | - | 4.96 | 198,934 |
| Countries by Official Language | 0 | - | 4.95 | 192,769 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,205 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,096 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,735 |
| Counties of Ireland | 0 | - | 4.92 | 193,085 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,448 |
| Countries Bordering India | 0 | - | 4.98 | 162,605 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,657 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,503 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,658 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,632 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| European Cities by Clue | 0 | - | 4.70 | 88,803 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,951 |
| Islands by Country #2 | 0 | - | 4.80 | 76,993 |
