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.

How many Watermelons are there in the below picture?

How many sides does a circle have?

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

1 dollar = 100 cent
= 10 cent x 10 cent
= 1/10 dollar x 1/10 dollar
= 1/100 dollar
= 1 cent

=> 1 dollar = 1 cent

solve this tricky problem?

Can you identify the famous TV character from the rebus below?

When monkey rotate the gear, which mark will be hit 1 or 2 ?

81 x 9 = 801. What must you do to make the this equation true?

Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

When we see 2 but call 10?