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Logical

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27 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 about 1 year ago by M2JOHNSON currently with 70 comments
14 likes 6.2
(Challenging)
The Monty Hall Problem in Logical
This problem has numerous variations and its various forms has stumped many mathematici...
Added over 2 years ago by johnp currently with 53 comments
15 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 49 comments
6 likes 3.7
(Fairly Easy)
Drip Drop in Logical
You have a 5 liter bucket, a 3 liter bucket, and an unlimited water supply. How do you...
Added about 1 year ago by kash currently with 48 comments
11 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 about 1 year ago by vette982 currently with 46 comments
4 likes 4.9
(Moderate)
Cars and Hotels in Logical
You're driving a silver car, you pull up to a hotel and realize you're bankrupt. What's...
Added about 1 year ago by ameliewoods currently with 43 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 about 1 year ago by jaX currently with 43 comments
13 likes 5.1
(Moderate)
Clever Commuter in Logical
Every day, Fred takes the train to travel from his work back to Alkmaar, his place of r...
Added about 1 year ago by vette982 currently with 42 comments
5 likes 1.8
(Very easy)
How Come? in Logical
A policeman in a patrol car felt there was something suspicious about an automobile par...
Added about 1 year ago by Gerberfletch currently with 42 comments
6 likes 2.8
(Fairly Easy)
three prisoners in Logical
there are three prisoners one can see fine one can see out of one eye and one is total...
Added 7 months ago by makaylasdad2003 currently with 42 comments
19 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 about 1 year ago by Tsion currently with 41 comments
15 likes 4.0
(Moderate)
Cooking Time in Logical
A cook must put a souffle exactly 9 minutes at the oven, but he only have a 7 minutes h...
Added about 1 year ago by luis currently with 41 comments
15 likes 5.3
(Moderate)
Classic Knights & Knaves in Logical
Raymond Smullyan has made a career of writing logic problems. His most famous have to d...
Added over 2 years ago by ig0r currently with 40 comments
7 likes 3.9
(Fairly Easy)
The Cabin in Logical
There is a man lying face-down, dead, in the middle of a cabin. The cabin is in the mi...
Added about 1 year ago by sSkiLLiNn currently with 39 comments
10 likes 6.5
(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 38 comments