The more of this there is, the less you see. What is it?

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

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

Seven Robbers robbed a bank and hide the coins in a lonely place.
They decide to divide the money equally the next morning. Two greedy robbers decided to cheat the others and reach the place at night. They equally divided the coins between them, one coin left. So they called another robber and then they decided to divide equally among the three. Sadly again one coin left. The same thing happened to the 4th 5th and the 6th robber.
However, when the 7th robber reached in the morning, they can divide the coins equally.

How many coins were there in total?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

I don't get anymore wetter, no matter how much rain falls on me.

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

How many times can you subtract the number 5 from 25?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.