How can a man go eight days without sleep?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

I am quite hot but become too cold if you remove the first two letters. What am I?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

A man was driving a black truck. His lights were not on. The moon was not out. A lady was crossing the street. How did the man see her?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

How many times in a given day, minutes and hour clock comes in a straight line ?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

You can see it everyday, But cannot touch it at will. What is it?

What has 13 hearts but no other organs?