There are three boxes which are labeled as Rs100, Rs150, and Rs200. One box contains two notes of Rs. 50. The second box contains one note of Rs50 and one note of Rs100 The third box contains two Rs. 100 notes. All boxes are labeled incorrectly.

What is the minimum number of boxes you must check in order to label all boxes correctly?

When is the top of a mountain similar to a savings account?

10+10 and 11+11 can give you the same answer.

Explain how?

Why is the longest human nose just 11 inches?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

What brings you down but never up?

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

Can you find out the remainder when 3^300 is divided by 5?

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

Can you find the ages of a son, father and grandfather based on the following facts?
The sum of the ages of grandfather, father and son is 140 years.
The age of the son in months is the same as the grandfather in years.
The age of the son in days is the same as the father in weeks.