What is the word or phrase?

I look at you, you look at me I raise my right, you raise your left. What am I?

Replace the question mark with the number below given a simple math problem.

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?

They do not possess flesh or feathers or scales or bone
But still, they are blessed with fingers and thumbs of their own.

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

Can you spot the man between the coffee bean in the picture below ?

Rebus Puzzle Definition: A rebus is an illusion device that uses pictures to represent words or parts of words.
What does This Rebus Puzzle Identify?

My grandson is about as many days as my son in weeks, and my grandson is as many months as I am in years. My grandson, my son and I together are 120 years. Can you tell me my age in years ?