| Island Countries | 0 | - | 4.99 | 707,492 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,138 |
| European Countries by Clue | 0 | - | 4.92 | 182,342 |
| Countries by Military Spending | 0 | - | 4.93 | 176,353 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,366 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,894,710 |
| US States Quiz | 0 | - | 5.00 | 16,693,131 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,311 |
| United States Map Quiz | 0 | - | 4.98 | 4,141,125 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,475 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,934 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,799,809 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,486 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,835 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,460 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,969 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,756 |
| All Country Flags of the World | 0 | - | 5.00 | 3,599,367 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,415 |
| Countries that Start with B | 0 | - | 4.95 | 2,279,203 |
| Countries that Start with A | 0 | - | 4.97 | 2,146,051 |
| Countries of Africa | 0 | - | 5.00 | 2,506,575 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,418 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,677,164 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,894 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,781 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,598 |
| Countries that Start with S | 0 | - | 4.98 | 1,744,073 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,501 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,341 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,194 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,309 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,959 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,080 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,418 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,696 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,923 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,246 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,070 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,153 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,411 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,806 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,546 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,994 |
| Random Country to Capital | 0 | - | 4.98 | 911,282 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,967 |
| Biggest Cities in the United States | 0 | - | 4.93 | 966,146 |
| Asia Map Quiz | 0 | - | 4.99 | 906,667 |
| Countries that Start with U | 0 | - | 4.97 | 899,735 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,779 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,011,246 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,489 |
| Counties of England | 0 | - | 4.97 | 788,900 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,772 |
| Oceania Map Quiz | 0 | - | 4.98 | 635,030 |
| Top World Languages | 0 | - | 4.92 | 812,732 |
| Countries of South America | 0 | - | 5.00 | 914,179 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,933 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,548 |
| Countries that Start with K | 0 | - | 4.96 | 809,126 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,057 |
| US States with an Empty Map | 0 | - | 5.00 | 618,566 |
| Countries that Start with V | 0 | - | 4.98 | 604,904 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,627 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,119 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,216 |
| Countries that Start with D | 0 | - | 4.96 | 701,166 |
| Countries That Border Russia | 0 | - | 4.98 | 458,796 |
| One Border Countries | 0 | - | 4.98 | 464,143 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,695 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,078 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,627 |
| Countries with Four Letters | 0 | - | 4.99 | 418,375 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,406 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,660 |
| Countries Bordering France | 0 | - | 4.85 | 398,555 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| Northernmost Countries | 0 | - | 4.99 | 357,555 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,224 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,019 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,931 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,203 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,030 |
| Landlocked Countries | 0 | - | 4.99 | 413,314 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,068 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,266 |
| Australia Map Quiz | 0 | - | 4.94 | 342,386 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,690 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,485 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,349 |
| Countries that Start with H | 0 | - | 4.96 | 597,631 |
| Countries that Start with J | 0 | - | 4.98 | 595,695 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,248 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,747 |
| "Land" Countries | 0 | - | 4.98 | 333,559 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,332 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,661 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,709 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,225 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,419 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,977 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,713 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,162 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,980 |
| Countries with Z | 0 | - | 4.98 | 287,793 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,041 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,829 |
| Flags of North and South America | 0 | - | 4.99 | 366,775 |
| EU Countries Quiz | 0 | - | 4.99 | 269,753 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,153 |
| Countries that Border China | 0 | - | 4.96 | 261,780 |
| French-Speaking Countries | 0 | - | 4.85 | 268,725 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,605 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,190 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,787 |
| Every Country Shape | 0 | - | 5.00 | 458,613 |
| Europe Capital to Country | 0 | - | 4.99 | 247,449 |
| Longest International Borders | 0 | - | 4.99 | 263,491 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,085 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,802 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,486 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,581 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,778 |
| Megacities on a World Map | 0 | - | 4.98 | 250,826 |
| World Currency Quiz | 0 | - | 4.92 | 298,231 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,273 |
| NATO Countries | 0 | - | 4.98 | 275,533 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,867 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,037 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,147 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,381 |
| Official Cities in the UK | 0 | - | 4.89 | 280,408 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,045 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,179 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,232 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,357 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,405 |
| Countries with Megacities | 0 | - | 4.99 | 246,533 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,723 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,849 |
| World Capitals by Map | 0 | - | 5.00 | 283,086 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,899 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,332 |
| World's Busiest Airports | 0 | - | 4.94 | 210,292 |
| Country Chain | 0 | - | 4.96 | 215,661 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,327 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,635 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,572 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,870 |
| Independence from Whom | 0 | - | 4.99 | 209,609 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,709 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,602 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,536 |
| Countries with Six Letters | 0 | - | 4.93 | 210,281 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,556 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,454 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,323 |
| Flags of Oceania | 0 | - | 5.00 | 255,004 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,395 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,871 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,936 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,318 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,001 |
| Countries in their Native Language | 0 | - | 4.99 | 196,565 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,258 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,245 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,354 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,312 |
| Monarchies of the World | 0 | - | 4.94 | 166,530 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,501 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,687 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,354 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,969 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,123 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,064 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,864 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,755 |
| Countries That End in Y | 0 | - | 4.90 | 185,184 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,188 |
| Olympic Host Countries | 0 | - | 4.98 | 198,837 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,649 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,882 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,072 |
| Every European Country Shape | 0 | - | 4.96 | 200,075 |
| Countries of the Middle East | 0 | - | 4.96 | 198,834 |
| Countries by Official Language | 0 | - | 4.95 | 192,707 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,172 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,039 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,692 |
| Counties of Ireland | 0 | - | 4.92 | 192,974 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,395 |
| Countries Bordering India | 0 | - | 4.98 | 162,575 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,629 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,610 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,606 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,407 |
| European Cities by Clue | 0 | - | 4.70 | 88,793 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,940 |
| Islands by Country #2 | 0 | - | 4.80 | 76,971 |
