Find the next number in the sequence

1, 2, 6, 21, 88, __?

You can see it everyday, But cannot touch it at will. What is it?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

What does below Rebus mean ?

esgg sgeg gegs gsge

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?

It is always ahead of me yet I can never see it. What is it?

I have holes on the top and bottom. I have holes on my left and on my right. And I have holes in the middle, yet I still hold water. What am I?

What has to be broken before you can use it?

I go up and I go down.
I go up towards the beautiful sky and down toward the green ground.
I am present tense.
I am past tense too
Children love me.

Who Am I?