What do you answer even though it never asks you questions?

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

What 4-letter word can be written forward, backward or upside down, and can still be read from left to right?

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

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

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?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

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?

A patient was diagnosed with some ailment. He was given five different tablets to take at night at an interval of 15 minutes.

How long will it take the patient to consume all the five tablets?