John was working on a Chemical Mixture whose weight comprise 90% liquid and 10% solid. The total weight of the mixture is 20 pounds. After a while, John noticed that some of the liquid evaporated and now the liquid comprises just 50% of the weight.

What is the weight of the chemical mixture now?

If 24H in a D => 24 hours in a day.
What does "64S on CB" stand for?

Two men are in a desert. They both have packs on. One of the guys is dead. The guy alive has his pack open, and the guy who is dead has his pack closed. What is in the pack?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

What can go through glass without breaking it?

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

Can you solve the rebus below?

A bomb exploded in a room full of married couples and no one died. How?