How can one talk without saying a single word?

What does this rebus puzzle means ?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

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

What has hands, but can’t clap?

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?

Can it be possible to build a house that has all its four walls facing towards the South?

The pound is not a finish.

We are sharing a few instructions below, which you have to use in any suitable order to modify the above sentence such that the end sentence is a scientific fact.

- Eliminate a letter and supplement another in its place.
- Take away one word.
- Remove one letter from one word.
- Get rid of two letters from one word.
- Swap a word with its antonym.

Here is a mathematical expression that also secretly tells a movie name. What movie is that?