During which month do people sleep the least?

These types of puzzles are known as charades. What you have to do is 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 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.

Prove that the below maths equation is true.

8 + 8 = 91

I have two sand hourglasses:
1. A 7 minute one and
2. An 11-minute one.

Using just these 2 sand hourglasses, how can I measure time as 15 minutes?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

In the picture that is attached with this question, you can find a square which comprises of four little squares inside it. Consider this square to be made with matchsticks. You have to remove two matchsticks such that only two squares remain instead of five.How will you do it ?

Do you know of a place where the wind blows south and then suddenly shifts direction towards the north?

Prove that twice of ten is the same as twice of eleven.

using four eights (8) and a one (1) and one mathematical symbol , create the number 100

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?