What does below chemistry rebus means?

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?

Which wheel of car does not rotate when you turn your car right?

Can you name an animal whose killing cannot be performed without spilling your own blood?

Which alphabet letter is a question?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

In the figure, you can see nine stars. What you have to do is connect all of them by using just four line and without lifting your hand i.e. in a continuous flow.

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Mr Red Lives in the red house.
Mr Green Lives in the greenhouse.
Mr Yellow Lives in the yellow house.

Who lives in the Whitehouse?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?