| Island Countries | 0 | - | 4.99 | 712,586 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,629 |
| European Countries by Clue | 0 | - | 4.92 | 184,167 |
| Countries by Military Spending | 0 | - | 4.93 | 179,012 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,695 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,882,731 |
| US States Quiz | 0 | - | 5.00 | 16,996,933 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,653,312 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,370 |
| World Capitals Quiz | 0 | - | 5.00 | 5,106,322 |
| Europe Map Quiz | 0 | - | 5.00 | 4,788,344 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,020 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,788 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,063 |
| Random Capital to Country | 0 | - | 4.99 | 2,601,600 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,804,716 |
| Africa Map Quiz | 0 | - | 5.00 | 2,128,744 |
| All Country Flags of the World | 0 | - | 5.00 | 3,714,190 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,124,376 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,482 |
| Countries that Start with A | 0 | - | 4.98 | 2,175,768 |
| Countries of Africa | 0 | - | 5.00 | 2,559,942 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,524 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,698,806 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,744 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,468 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,316 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,175 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,199 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,620 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,466 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,532 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,278 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,087 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,661 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,036 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,582 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,028 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,796 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,229 |
| Countries that Start with N | 0 | - | 4.93 | 1,123,874 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,162 |
| Countries that Start with L | 0 | - | 4.98 | 1,096,826 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,758 |
| Random Country to Capital | 0 | - | 4.98 | 928,179 |
| Countries that Start with T | 0 | - | 4.90 | 1,014,928 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,104 |
| Asia Map Quiz | 0 | - | 4.99 | 925,227 |
| Countries that Start with U | 0 | - | 4.97 | 908,489 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,434 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,578 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,476 |
| Counties of England | 0 | - | 4.97 | 802,956 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,622 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,385 |
| Top World Languages | 0 | - | 4.92 | 829,829 |
| Countries of South America | 0 | - | 5.00 | 932,750 |
| Africa Capitals Quiz | 0 | - | 4.99 | 743,900 |
| Asia Capitals Quiz | 0 | - | 4.98 | 698,884 |
| Countries that Start with K | 0 | - | 4.97 | 820,775 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,458 |
| US States with an Empty Map | 0 | - | 5.00 | 628,726 |
| Countries that Start with V | 0 | - | 4.98 | 612,014 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,166 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,126 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,399 |
| Countries that Start with D | 0 | - | 4.96 | 716,429 |
| Countries That Border Russia | 0 | - | 4.98 | 464,509 |
| One Border Countries | 0 | - | 4.98 | 471,970 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,516 |
| South America Capitals Quiz | 0 | - | 5.00 | 484,994 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,721 |
| Countries with Four Letters | 0 | - | 4.99 | 425,858 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,604 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,521 |
| Countries Bordering France | 0 | - | 4.83 | 404,917 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,513 |
| Northernmost Countries | 0 | - | 4.99 | 364,032 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,250 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,705 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,859 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,675 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,029 |
| Landlocked Countries | 0 | - | 4.99 | 425,917 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,887 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,121 |
| Australia Map Quiz | 0 | - | 4.95 | 346,168 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,051 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,636 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,720 |
| Countries that Start with H | 0 | - | 4.96 | 609,598 |
| Countries that Start with J | 0 | - | 4.98 | 606,988 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,888 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 336,940 |
| "Land" Countries | 0 | - | 4.98 | 338,400 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,012 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,235 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,252 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,432 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,032 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,630 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,760 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,337 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,874 |
| Countries with Z | 0 | - | 4.98 | 292,473 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,648 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,047 |
| Flags of North and South America | 0 | - | 4.99 | 377,023 |
| EU Countries Quiz | 0 | - | 4.99 | 277,946 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,240 |
| Countries that Border China | 0 | - | 4.96 | 264,289 |
| French-Speaking Countries | 0 | - | 4.85 | 271,689 |
| Countries with Five Letters | 0 | - | 4.96 | 283,791 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,191 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,411 |
| Every Country Shape | 0 | - | 5.00 | 471,140 |
| Europe Capital to Country | 0 | - | 4.99 | 252,096 |
| Longest International Borders | 0 | - | 4.99 | 265,815 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,008 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,673 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,438 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,635 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,121 |
| Megacities on a World Map | 0 | - | 4.98 | 256,953 |
| World Currency Quiz | 0 | - | 4.92 | 306,771 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,268 |
| NATO Countries | 0 | - | 4.98 | 283,460 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,583 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,953 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,820 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,361 |
| Official Cities in the UK | 0 | - | 4.89 | 286,275 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,496 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,572 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,126 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,141 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,820 |
| Countries with Megacities | 0 | - | 4.99 | 267,140 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,633 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,461 |
| World Capitals by Map | 0 | - | 5.00 | 289,391 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,319 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,988 |
| World's Busiest Airports | 0 | - | 4.96 | 237,323 |
| Country Chain | 0 | - | 4.96 | 218,457 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,914 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,761 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,376 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,701 |
| Independence from Whom | 0 | - | 4.99 | 213,079 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,449 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,866 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,029 |
| Countries with Six Letters | 0 | - | 4.94 | 214,494 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,248 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,711 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,098 |
| Flags of Oceania | 0 | - | 5.00 | 262,731 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,784 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,350 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,207 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,494 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,054 |
| Countries in their Native Language | 0 | - | 4.99 | 199,746 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,389 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,683 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,927 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,470 |
| Monarchies of the World | 0 | - | 4.94 | 170,219 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,294 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,979 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,643 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,994 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,598 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,231 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,012 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,242 |
| Countries That End in Y | 0 | - | 4.91 | 186,094 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,716 |
| Olympic Host Countries | 0 | - | 4.98 | 201,969 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,592 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,231 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,666 |
| Every European Country Shape | 0 | - | 4.96 | 203,000 |
| Countries of the Middle East | 0 | - | 4.96 | 202,957 |
| Countries by Official Language | 0 | - | 4.95 | 196,007 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,821 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,149 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,117 |
| Counties of Ireland | 0 | - | 4.92 | 197,321 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,747 |
| Countries Bordering India | 0 | - | 4.98 | 163,821 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,263 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,150 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,160 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,986 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,676 |
| European Cities by Clue | 0 | - | 4.70 | 89,177 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,416 |
| Islands by Country #2 | 0 | - | 4.80 | 77,873 |
