Prove that twice of ten is the same as twice of eleven.

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

Decode below rebus
D
N
A
T
S , D

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?

What does below pictogram mean?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?