What has no start, end, or centre?

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?

Count the number of triangles in the picture below:

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

John is looking at Jenifer, but Jenifer is looking at Jacob. John is married, but Jacob is not.

Is a married person looking at an unmarried person ?

This is a picture puzzle. You have to guess the name of the movie that can be related to the picture.

I went to the bookshop and spent one-half of the money that was in my purse.

When I came out, I found that I had as many cents as I had dollars and half as many dollars as I had cents when I went in. Find the money in my purse when I entered the store.

I am quite hot but become too cold if you remove the first two letters. What am I?

What is always in front of you but can’t be seen?

Three fair coins are tossed in the air and they land with heads up. Can you calculate the chances that when they are tossed again, two coins will again land with heads up?