If six children and two dogs were under an umbrella, how come none of them got wet?

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

I am written with two letters.
I said with the one.
I usually am seen with the two.

Who am I?

Solve this tricky question. You are trapped in a forest. With you, you have a gun preloaded with two bullets in it. In front of you, there is a tiger, a leopard and a jaguar.

How do you survive?

Next Number in the Series,

5, 16, 49, 104, ?

As easy as you can get into me, it is as hard to get out of me.

Do you know what I am?

Our product and our sum always give the same answer. Who are we?

A man dies of old age on his 25 birthday. How is this possible?

A man is found dead in his bathroom naked with blood scattered all around him. The bathroom was locked from the inside and there is no trace of any struggle. There is nothing in the bathroom except his pant with the belt still around and his shirt. Also, the medic team can't find any incision in his body that may have been the reason behind so much blood loss.

The Police department is clueless regarding this murder mystery.
Can you?

Take one out and scratch my head, I am now black but once was red. What am I?