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.

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

What jumps when it walks and sits when it stands?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

If two's company, and three's a crowd, then whats four and five ?

The peacock is a bird that does not lay eggs. How do they get baby peacocks?

Make a sentence consisting of three words that have the whole alphabet.

The barber of Town shaves all men living in the town. No man living in the town is allowed to shave himself. The barber lives in that town. Who then shaves the barber of the town?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Speaking of rivers, a man calls his dog from the opposite side of the river. The dog crosses the river without getting wet, and without using a bridge or boat. How?