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

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

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 the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

During which month do people sleep the least?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

I am white when I am dirty, and black when I am clean. What am I?

Why 1729 is a magic number? Answer Logically.

What word begins and ends with an E, but has only one letter?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?