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

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

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

What occurs twice in a week, once in a year but never in a day?

The day after tomorrow will be three days before Tuesday. Can you find out what is today?

Why is Saturday stronger than Monday?

What can go through glass without breaking it?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

I’m tall when I’m young, and I’m short when I’m old. What am I?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"