You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different. How do you measure 45 minutes?
Which is heavier: a ton of bricks or a ton of feathers?
In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat. Can this even be possible?
A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?
A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?
What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?
A Scientist was fifty years old in the year 2000 but he was forty years old in the year 2010. How can this be possible? PS: It has a logical answer.
Astrology starts with the alphabet A, Biology starts with B, Psychology with P and Limnology with L. Can you find an "ology" that begins with a P?
How can you take 2 from 5 and leave 4?
Can you place six X (crosses) in below board without making three in a row in any way ?
I am a number I am not an odd number I am higher than 90 I am not higher than 100 If you subtract me from 100, you get nothing. What number am I?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.
