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

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?

It is always ahead of me yet I can never see it. What is it?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

There is something which is always coming but never arrives?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

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

What two things can you never eat for breakfast?

Can you name some countries which do not have the alphabet 'A' in them?

Which five letter word can be added at the end of below word to form a
valid word?

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