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

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?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

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

By using 'because' continuously three times, can you make an English statement ?

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

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?