There is something which is always coming but never arrives?

What is always in front of you but can’t be seen?

What is next number in the pattern below:

131 517 192 123 ?

Replace the question mark with the correct number below.

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

Solve the following series:
AZ, GT, MN, __, YB

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

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.

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.

What seven-letter word has hundreds of letters in it?