Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

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

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

The person who makes it has no need for it; the person who buys it has no use for it. The person who uses it can neither see nor feel it. What is it?

What does this rebus means ?

PROG WORKRESS

If two's company, and three's a crowd, then whats four and five ?

What does this mean?

CCCCCCC

How can you make a TV, a bed, a dog, and a car liquid?

You are given 2 eggs.
You have access to a 100-storey building.
Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100th floor, Both eggs are identical.
You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

What does the below rebus riddle means?