I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Solve the mathematical equation in the picture below.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

Why is the Hole below a Lock?

The more you take me, the more you leave me behind.
Who Am I?

Solve the puzzle by telling what does below picture means.

You have two rectangular wires.

Both of them have property that when you light the fire from one end , it will take 60 minutes to get completely burn.

However, they do not burn at consistent speed (i.e it might be possible 1st 20% burn in 50 minutes and 80% can burn in 10 minutes).

So how could you measure 45 minutes ?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

How many times can you subtract the number two from the number fifty?

Aman has 1.15 rupees in his pocket. There are a total of 6 coins in his pocket.

When his friend asked him for a change, he could not give change for a rupee and five paisa.

Can you tell which coins he has?