There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

John is selling fruits.
He sells grapes at $30, Dates $25, and a Wolfberry $45.
At what price does he sell fig?

PS: Logical Thinking

What is black when you buy it, red when you use it, and gray when you throw it away?

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 ?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Solve The below Equation:

ALFA + BETA + GAMA = DELTA

Can you count the number of triangles in the given figure?

Solve the mathematical equation in the picture below.

All of Jacob's shoes are red except two.
All of Jacob's shoes are green except two.
All of Jacob's shoes are yellow except two.

How many shoes does Jacob have?

How many bananas can you eat if your stomach is empty?