What is the word or phrase?

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

You have two bottles of pills marked with labels A and B. The pills are identical. The doctor has asked you to take one A pill and one B pill daily. You cant take more or less than that.

While taking out the pills one day, you took out one pill from A and by mistake took out two from B. You have no idea which pill is which now.

You cant throw away the expensive pills. What will you do now?

The more of this there is, the less you see. What is it?

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

Only one colour, but not one size,
Stuck at the bottom, yet easily flies.
Present in sun, but not in rain,
Doing no harm, and feeling no pain.
What is it?

On a bus, there is a 26-year-old pregnant lady.
A 30-year-old policeman.
A 52-year-old random woman.
And the 65-year-old driver.

Who is the youngest?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

What does this rebus riddle mean?