What has 13 hearts but no other organs?

What has 88 keys?

Can it be possible to build a house that has all its four walls facing towards the South?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

Can you find out which options fits best with the missing column?

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

You see a mathematical expression in the picture. Can you think of a movie that this expression refers to?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

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.

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?