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.

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

What kind of band never plays music?

You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.

What number when divided in half becomes zero?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

John is the son of Jacob.
So,
Jacob is the_____of John's father?

I possess a head

I flaunt a tail

But I don't have mouth or legs

Can you find out who I am?

A man is lying dead in a field where no one is around. His head is split open and his legs are disfigured. Near to him, there is an unopened package. No living organism can be found anywhere at the crime scene.

How did he die?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?