In the image below, can you find the value of an angle(y)

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?

Solve the puzzle by telling what does below picture means.

What is the largest number you can write with just 3 digits?

No matter how little or how much you use me, you change me every month. What am I?

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?

How is a fly different from a mosquito?

An ant is travelling on a 1-meter-long rope at 1 cm/second but also the entire rope is being stretched by an extra 1 meter/second. Is it possible for the ant to reach at the end of the rope?

I have no life, but I can die. What am I?

I am never scared but became petrified and can’t live in a house but would die to make one. What am I?