What goes through cities and fields, but never moves?

What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

Give it food and it will live; give it water and it will die.

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

Can you find the missing piece of the Porsche?

What kind of storm is always in a rush?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

Can you find a rabbit in the given picture?

What is both possible and impossible at the same time?

Can you find the dog hidden in a group of pandas?