Eight of us go fourth, not back, to protect our king from an attack. What are we?

My location can be determined by the below rebus.
So where am i ?

By moving exactly three matchsticks can you make the below equation true.It can be solved by 3 ways.

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

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?

What has 13 hearts but no other organs?

How many times can you subtract the number 5 from 25?

Spot 5 differences in two Christmas tree below:

What does this Rebus Picture means ?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?