What is harder to catch the faster you run?

Find the missing number in the image below.

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

What does Alexander the Great and Winnie the Pooh have in common?

He digs out tiny caves and stores gold and silver in them. He also built bridges of silver and made crowns of gold. They are the smallest you could imagine. Sooner or later everybody needs his help, yet many people are afraid to let him help them. Who is he?

What can you catch but never throw?

I am a white box having no key or lid.
Yet there is a golden treasure inside it.

What Am I?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?