What number when divided in half becomes zero?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

A pond had 60 fish, out of which, all but 20 died.
How many fishes are now present in that pond?

Divide 110 into two parts so that one will be 150 per cent of the other. What are the 2 numbers?

In a fruit store, there was a unique weighing machine that was made to weigh only cherries and strawberries as they were priced the same.

Other fruits like watermelons or mango had different machines as they were expensive.

A man successfully buys watermelons at the price of cherries. How?

What has lots of eyes, but can’t see?

I never was there, I am always to be.
You have never ever seen me, not ever you will.
Yet I am the confidence of everyone.

Who Am I?

Replace the question mark with the correct number in the below-given picture?

What country can make you shiver?

There is so small cabin inside a deep forest.
All the forest burned out to worst possible but the inside of the cabin is still the same.
However all the person inside the cabin die.

How come ?