Solve below rebus puzzle?

These types of puzzles are known as charades. What you have to do is to find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be the 'office'.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

What has one eye, but can’t see?

What work can one never finish?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?

Can you identify the hidden rebus in the image below?

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