How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Which English verb becomes past tense just by rearranging the letters?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

Why do Chinese men eat more rice than Japanese men do ?

We know that money can be names differently for the purpose it is used for. Some of the examples of money given at following places or for following activities:

In temple = Daan
In school = Fees
During marriage = Dowry
For divorce = Alimony
Paying government = Tax
In court = Fine
Employer to employee = Salary
To kidnappers = Ransom
For illegal reason = Bribe
To civil servant retirees = Pension

Do you know what do we call the money a husband gives to his wife?

Find the next number in the series below

21 32 54 87 131 ?