What is harder to catch the faster you run?

I’m tall when I’m young, and I’m short when I’m old. What am I?

what does the below rebus mean?

A boy and his father are caught in a traffic accident, and the father dies. Immediately the boy is rushed to a hospital, suffering from injuries. But the attending surgeon at the hospital, upon seeing the boy, says 'I cannot operate. This boy is my son.' How is this situation explained?

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

I have an eye but still cannot see.

Who am I?

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?

John is asked to stand behind Jacob and Jacob is asked to stand behind John. Both of them feel confused about it and don't know what to do?

But it is quite possible, do you know how?

What does the following represent?

N N N N N N N

A A A A A A A

C C C C C C C

Can you count the number of triangles in the picture below?