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All Puzzles

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50 likes 5.2
(Moderate)
The Hidden Tiger in Optical Illusions
This must be the toughest optical illusion I’ve ever come across, created by American w...
Added about 1 year ago by copter currently with 15 comments
36 likes 6.0
(Challenging)
Burning Rope in At the Campfire
There are two lengths of rope. Each one can burn in exactly one hour. They are not ne...
Added about 1 year ago by vette982 currently with 19 comments
31 likes 5.1
(Moderate)
Psycho Killer in Lateral Thinking
While at the funeral of her mother, she met a man whom she did not know. She thought he...
Added about 1 year ago by copter currently with 20 comments
26 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 4 comments
26 likes 4.5
(Moderate)
The bus stop in Lateral Thinking
You're driving your car to work in the pouring rain when you see three people on the si...
Added 10 months ago by chillinfrog currently with 9 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 10 months ago by M2JOHNSON currently with 34 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
24 likes 3.8
(Fairly Easy)
Don't Eat Me! in Riddles
Would you rather a crocodile attack you or an alligator?
Added about 1 year ago by city_slick currently with 8 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 10 months ago by jaX currently with 3 comments
21 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 8 comments
20 likes 3.0
(Fairly Easy)
Surgery in Lateral Thinking
A boy and his father get into an enormous and unfortunate car accident. The father is ...
Added about 1 year ago by city_slick currently with 7 comments
20 likes 5.5
(Moderate)
Open Water in Physics
A man is in a rowing boat floating on a lake, in the boat he has a brick. He throws the...
Added about 1 year ago by jaX currently with 4 comments
20 likes 4.9
(Moderate)
The fake coin in Mathematics
You have 9 coins which all look identical but 1 of them weight less than the others. Yo...
Added 7 months ago by jakab922 currently with 2 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
19 likes 4.8
(Moderate)
Attic Lamp Switch in At the Campfire
A downstairs panel contains three on-off switches. One of them controls the lamp in yo...
Added about 1 year ago by kash currently with 11 comments