What does this rebus puzzle means ?

What is black when you buy it, red when you use it, and gray when you throw it away?

It is always ahead of me yet I can never see it. What is it?

In a supermarket, there is an intelligent glass pane before a refrigerating unit. This glass pane allows cherries and apples through it but does not allow grapes and Orange to pass through it.

Can you identify the rule that the glass pane is following?

What came first, the chicken or the egg?

What word does this rebus represent?

meta meta
meta meta

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?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

I am sometimes honest
Sometimes dishonest
I can be sweet and also bitter
I can hurt you real bad and
also make u smile and blush ☺️
What am I?