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All Puzzles

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26 likes 9.2
(Impossible.)
Three Idols in Logical
Classic: Three gods A, B, and C are called, in some order, True, False, and Random. T...
Added 10 months ago by M2JOHNSON currently with 34 comments
9 likes 7.8
(Challenging)
Marble Weights in Logical
You are given a set of scales and 12 marbles. The scales are of the old balance variety...
Added 10 months ago by jaX currently with 11 comments
22 likes 7.5
(Challenging)
Cards With Crosses in Logical
You have a stack of 23 cards. Each card has an image of a cross on one side, and an ima...
Added 9 months ago by jaX currently with 3 comments
18 likes 7.4
(Challenging)
The Number Problem in Logical
What does 3685=? 8809=6 7111=0 2172=0 6666=4 1111=0 3213=0 7662=2 8096=5 931...
Added 10 months ago by Tsion currently with 11 comments
24 likes 7.2
(Challenging)
The Famous Hole in a Sphere in Mathematics
This incredible problem was first made famous by Martin Gardner with his 'Mathematical ...
Added about 1 year ago by Valentin currently with 16 comments
14 likes 7.1
(Challenging)
12 Identical Balls in Logical
You have 12 identical balls. One of them is slightly different in weight than the rest...
Added about 1 year ago by kash currently with 15 comments
19 likes 7.0
(Challenging)
The North Pole Bear Puzzle Reloaded in General
A man walks 1 mile south, then 1 mile east, and finally 1 mile north to find himself in...
Added about 1 year ago by Valentin currently with 8 comments
16 likes 6.9
(Challenging)
Crazy Google Interview Question in Lateral Thinking
You are shrunk to the height of a nickel and your mass is proportionally reduced so as ...
Added about 1 year ago by ig0r currently with 32 comments
10 likes 6.9
(Challenging)
Don't be a Square in General
Shown is a large square made up of four shapes, and a separate square, labeled with an ...
Added about 1 year ago by vette982 currently with 3 comments
8 likes 6.9
(Challenging)
Cracking the Safe in Logical
You are to open a safe without knowing the combination. Beginning with the dial set at ...
Added about 1 year ago by johnp currently with 8 comments
10 likes 6.9
(Challenging)
Happy Handshaking in Logical
Jack and his wife went to a party where four other married couples were present. Every ...
Added 9 months ago by vette982 currently with 9 comments
9 likes 6.8
(Challenging)
Fork in the road in Logical
You are walking down a road and arrive at a fork that splits the road into two separate...
Added about 1 year ago by city_slick currently with 7 comments
7 likes 6.6
(Challenging)
Find the Missing Number in Mathematics
In this table, each row across follows the same pattern of numbers. See if you can disc...
Added about 1 year ago by copter currently with 0 comments
10 likes 6.5
(Challenging)
The Neighbourhood in Logical
People say Einstein suggested that 98% of the world's population couldn't figure out th...
Added 7 months ago by ace currently with 13 comments
12 likes 6.5
(Challenging)
Lockers in Mathematics
A high school has a strange principal. On the first day, he has his students perform an...
Added about 1 year ago by copter currently with 2 comments