What does this below rebus puzzle mean?

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?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

On a beautiful Sunday morning, You ordered a hot tea to your hotel room and suddenly you remember an important thing that needed to be done right now will take around 3 minutes to complete.
Like most people you like your tea to be hot while drinking so, when should you pour cream in the tea?
1. straight away
2. Just people, you drink the team
3. Its does not matter

Prove that twice of ten is the same as twice of eleven.

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?