In the image below, can you find the value of an angle(y)

They are three errirs in this question. Can you find them?

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?

John was piloting a plane behind a car but was never able to overtake it. Why?

What can you see in the middle of March and April that you can never see in any other month?

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Give it food and it will live; give it water and it will die.

Which wheel of car does not rotate when you turn your car right?

I was born in a small house and I live in it all alone. No windows and no doors have been assigned to my house. The only way I can go out is by breaking through the walls of my house.

Who am I?

A Car driver was heading down a street in Washington. He went right past a stop sign without stopping, he turned left where there was a 'no left turn' sign and he went the wrong way on a one-way street. Then he went on the right side of the road past a cop car. Still, he didn't break any traffic laws. Why not?