I have teeth but i don't bite. Who Am I ?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

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?

What has 88 keys?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

If Rajina's daughter is my daughter's mom, who am I to Rajina?

I am the black child of a white father, a wingless bird, flying even to the clouds of heaven. I give birth to tears of mourning in pupils that meet me, even though there is no cause for grief, and at once on my birth, I am dissolved into air. What am I?

What can you catch but never throw?

John leaves home and then he takes three right turns. John wants to return to home but he was scared of Jacob, who is wearing a mask.

What is John Situation ?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?