A man dies of old age on his 25 birthday. How is this possible?

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

I am 5 letters long.
My first two tell you who I am
My first 3 could be a medicine
My last three reversed could be a young boy.
My 4th, 3rd and 2nd in that order could be a fruit drink.
If you have me you may hang me round your neck
WHAT AM I ?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

An artist while painting a scenic beauty, decides to paint three layers of blue colour on the sky.

Which layer will go on the first?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

Why is it against the law for a man living in Delhi to be buried in Mumbai?

The doctor advised his patient to take a tablet after every fifteen minutes. He gave him five tablets in total.

How much time will he take to have all the five tablets?