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Categories /

Logical

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28 likes 5.0
(Moderate)
3 Men and a Hotel Room in Logical
Three men decided to split the cost of a hotel room. The hotel manager gave them a pric...
Added about 1 year ago by copter currently with 17 comments
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 about 1 year ago by M2JOHNSON currently with 66 comments
23 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 about 1 year ago by jaX currently with 31 comments
22 likes 3.8
(Fairly Easy)
Clock Works - Google Interview Question in Logical
How many degrees are there in the angle between the hour and minute hands of a clock wh...
Added about 1 year ago by vette982 currently with 26 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 39 comments
17 likes 5.7
(Moderate)
The Bookworm in Logical
Looking onto a shelf you see three books each labeled Volume 1, Volume 2, and Volume 3 ...
Added about 1 year ago by Tsion currently with 21 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 about 1 year ago by ig0r currently with 39 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 11 months ago by luis currently with 40 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 47 comments
13 likes 6.2
(Challenging)
The Monty Hall Problem in Logical
This problem has numerous variations and its various forms has stumped many mathematici...
Added about 1 year ago by johnp currently with 51 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 40 comments
12 likes 5.3
(Moderate)
The Stealing Mailman in Logical
This is a fairly simple problem that can cause some people trouble. Kevin and Sophia ...
Added about 1 year ago by johnp currently with 31 comments
12 likes 6.7
(Challenging)
The Neighbourhood in Logical
People say Einstein suggested that 98% of the world's population couldn't figure out th...
Added about 1 year ago by ace currently with 35 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 40 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 33 comments