How can you write nineteen in a manner that if we take out one, it becomes twenty?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

Which Burger Is Different in below image?

Pronounced as one letter,
And written with three,
Two letters there are,
And two only in me.
I am double, I am single,
I am black blue and grey,
I am read from both ends,
And the same either way.

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?

On her drawing table, Sayna lit 12 coloured candles. A few seconds later she blew two candles off.

How many candles Sayna have at the end?

What has to be broken before you can use it?

Can you solve this picture maths equation?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

If you say my name, I will no longer exist. What am I?