During which month do people sleep the least?

Can you solve this picture maths equation?

If you say my name, I will no longer exist. What am I?

What has many keys but can’t open a single lock?

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.

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

I know a nine-letter word having only one vowel.
Do you ?

What breaks yet never falls, and what falls yet never breaks?

I am soft and cuddly that soothe your heart. But, If you pick my last name I am going to tear you all apart. Who am I?

The more of this there is, the less you see. What is it?