Do You See It?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Living above a star, I do not burn
Eleven friends and they do not turn
I can just be visited in a sequence, not once or repeatedly
PQRS are my initials
Can you tell my name accurately?

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?

I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?

I don't get anymore wetter, no matter how much rain falls on me.

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

A man is found dead with a knife in his back When the investigation is done. A chair lays beside him and the forensic team finds moisture around the body.

If he committed suicide, how did he do it?

Can you solve the below geography rebus by decoding the below rebus ?

Solve below popular number sequence
314 159 265 358 979 323 846 ?